4 General Technical Specification of Bhilai Steel Plant, SAIL ...

TENDER DOCUMENT 

NIT No.: DLI/C&E/WI-665/284 

FOR 

Tender for ‘Design, Engineering, Supply , installation, 

testing & commissioning of ‘DUST SUPPRESSION 

PACKAGE AND ASSOCIATED WORKS’ for the 

project of “Augmentation of Raw Material Handling 

Receipt and Handling facilities with new OHP Part– B 

(Package- 061) of Bhilai Steel Plant, (SAIL)”. 

VOLUME – 4 

General Technical Specification 

of 

Bhilai Steel Plant, SAIL 

ENGINEERING PROJECTS (INDIA) LIMITED 

(A GOVT. OF INDIA ENTERPRISE) 

Core-3, Scope Complex, 7, Institutional Area, 

Lodhi Road, New Delhi-110003 

TEL NO: 011-24361666 FAX NO. 011- 24363426

STEEL AUTHORITY OF INDIA LIMITED 

BHILAI STEEL PLANT 

GENERAL SPECIFICATION 

FOR 

PREFFERED MAKES 

(GS – 13) 

MECON LIMITED 

RANCHI – 834002 

No. MEC/S/1901/11/38/0/00/00/F1889/R2 JULY, 2007

SL. 

NO. 

© 2007 MECON Limited 

All rights reserved 


CONTENTS 

DESCRIPTION 

Preferred Makes 

Page 1 of 1 

PAGE 

NO. 

01 PREAMBLE 1 

02 FLUID SYSTEM 2 

03 VENTILATION, AIR CONDITIONING AND AIR 

POLLUTION CONTROL EQUIPMENT 

04 HANDLING & HOISTING EQUIPMENT 11 

05 REPAIR & MAINTENANCE FACILITIES 16 

06 ELECTRICAL 17 

07 INSTRUMENTATION 25 

08 FIRE PROTECTION SYSTEM 30 

09 BOF GCP EQUIPMENT 30 

10 INFORMATION SYSTEM 32 

11 FLUID SYSTEMS & PIPING ENGG 

(LUBRICATION & HYDRAULICS) 

9 

34 

GS-13

01. PREAMBLE 




This document “PREFERRED MAKES OF EQUIPMENT AND SUPPLIES” is a part of 

the tender specification for various packages of BHILAI STEEL PLANT. 

The makes of various equipment and supplies in respect of imported/indigenous 

equipment/components/materials are listed out in this document. It is essential that the 

equipment/component/materials to be supplied from imported/indigenous sources by the 

Tenderer will be of any one of the makes listed against that particular equipment/ 

component/material in this documents.. 

In case the Tenderer/ Contractor intends to substitute any particular make of equipment / 

components/ materials by a make other than that listed in this document, the Tenderer 

shall clearly bring out the same in his tender along with justification and indicate the 

alternative makes offered by him. It will be prerogative of the Purchaser to accept or 

reject the alternative makes so offered. 



GS-13

01 FLUID SYSTEM 

01.01 Water Supply Facilities 

Sl. 

No. 




Item Description Manufacturers 

1 Horizontal 

Centrifugal Pumps 

2 Vertical Turbine 

Pumps 

3 Vertical Wet Pit 

Type Pumps 

: Kirloskar Brothers, KSB, Beacon Weir, Khimline, Jyoti, 

Sintech, Ghaziabad. 

: Kirloskar Brothers, Voltas, WPIL, Jyoti, 

: SU Motors, Kishore Pumps, Kirloskar Brothers, KSB. 

4 Submersible Pumps : KSB, SU Motors, Kirloskar Brothers, Kishore Pumps, 

Darling, Beacon Weir. 

5 Slurry Pump : Akay, Sam Engg., MBE, KBL, KSB Pumps, WARMAN. 

6 Dosing Pump : Shapo Tools, Asia LMI (Madras), Positive Metering Pumps, 

Toshniwal, Milton Roy India. 

7 Cooling Towers : PCTPL, Shri Ram Tower Tech, Gammon, Himgiri, Southern 

Cooling Tower, BDT, GEA 

8 Pressure Filters : Thermax, Ion-Exchange, Resin India, Driplex, Doshion, VA 

Tech Wabag, UEM, Aquatech 

9 Sluice Gates : Jash Engineering, IVPL 

10 Travelling Water 

Screen 

: Macmet, Triveni, Otokiln, Mecgale (Nagpur), General 

Mechanical 

11 Sludge Scrapper : Triveni, Neo – Parisrutan, Mata India, Geomiller 

12 Fire Hydrants : New Age Industries, Steelage Industires, ASCO, Strumech, 

Vijay Fire, Zenith 

13 Basket Strainers : Filteration Engrs, J.N Marshall, Masturlal Fabrication , ARF 

Engg, Purolator Filters, ABB, Filters Mfd India 

14 Duplex Strainers : Filteration Engrs., Otokiln, Superflo 

15 Rubber Dismantling 

Joints 

16 Diesel Engine 

17 Softening & DM 

Plant 

18 R O Plants 

19 Effluent Treatment 

Plant 

20 Drinking water 

Treatment Plant 

: BDX, CORI Engineers, D.Wren, 

: 

: 

: 

: 

: 

Cummins/Ashok Layland/Ruston 

Doshi / Resin India / Thermax / Thermax Cullinyan / VA 

Tech / Ion Exchange /Triveni / GEA Energy Systems/ 

Driplex Water Engg, Triveni, 

UEM India, VA Tech, GEA Energy Systems, Ion Exchange, 

Driplex Water Engg, Triveni, 

UEM India, VA Tech, GEA Energy Systems, Triveni, 

UEM India, VA Tech, GEA Energy Systems, Driplex Water 

Engg , Triveni, 

21 Basalt Liners : DEMECH, Vidyut Green Bank, Enviro Abrasian, Garden 



GS-13

Sl. 

No. 





22 Oil Skimmer : JVM Engg. 

23 Plate Heat 

Exchangers 

Reach Ship Builders & Engg. 

: Alfalaval, GEA Ecoflex, IDMC 

24 Surge Tanks : Anup Engg., Zenith Erectors, Haldia., Perfect Engg., Sakthi 

Hitech 

25 C.I. Valves (gate, 

globe, NRV) 

26 CS Valves (gate, 

NRV) 

: Kirloskar Brothers, Steam & Mining, IVPL, AV Valves, Shiv 

Durga, BDK, Fouress. 

: Audco, Fouress, BHEL, Sakhi, KSB, Steam & Mining, BDK, 

Kirloskar, Virgo 

27 Plug Valves : Audco- L&T, Vass Ind., Xomox, Virgo, BDK, Steam & 

Mining. 

28 Ball Valves : Audco, KSB, AL Saunders, Xomox, Virgo, BDK, Virgo , 

29 GM Valves : Leader, Steam & Mining, NECO, Upadhyay Valves, Kalpana 

Valves 

30 Butterfly Valves 

: 

L&T, Fouress, Kirloskar Brothers, IVPL, VIRGO, AL 

(Manually & 

electrically 

operated) 

Saunders, Steam & Mining, Keystone, BDK, XOMOX. 

31 Diaphragm Valves 

: 

AL Saunders, Fluid System, BDK , Steam & Mining. 

32 Float Valve 

: 

Leader, IVPL, IM Engineers, Steam & Mining. 

33 Control Valve 

: 

BHEL, L&T, Fouress, IL, MIL Controls, NECO Scharbet, 

Darling 

34 Solenoid Valve 

: 

Rotex, Sicmag, Scharder, NECO INDFOS, Eastern 

Pneumatic, Bluestar, AVCON, ASCO, Mercury 

35 Air Release Valve 

: 

Shiva Durga, IVPL, IM Engineers, Steam & Mining, 

Schroder Duncum, Fluid Line Valves. 

36 Pressure Reducing 

: 

JNM, Fouress, Bestobell, IL, Mazda, Nirmal Ind., Forbes 

Valve 

Marshal 

37 Strainer/Filter 

: 

Otokiln, Superflo, Triveni Plenty, Filter Mfg. Ind., Purolator, 

Filteration Engineers 

38 Electric Actuators 

: 

Beacon Rotork, Auma, Marsh Engineers, Keystone, 

Limitorque, Antrieb, IL, Palghat 

39 Rotory Pneumatic 

: 

AL Saunders, Xomox, EL-O-Matic, Virgo, L&T, Flocon, 

Actuators 

Precision Processing Equipt. Co. 

40 Hoses 

: 

Aeroflox/Markwel/Senior Flexonics, Inalsa, Teksons 

41 Pipes a) MS/GI 

: 

SAIL/TATA/Jindal/Zenith/Man/SAW/Surindra/Welspun/Prak 

esh 

b) DI 

: 

Electro Steel Casting 

42 RCC Pipes & 

Fittings 

: SUR Industrial Pipes, Hind Ceramics, Indian Hume Pipes, 

Daya Cuncrching. 

43 HDPE Pipes & : EMCO, KWH Heliplastic Polyolefins, Oriplast 



GS-13

Sl. 

No. 





Fittings 

44 PVC Pipes & 

Fittings 

45 SS Pipes / SS 

Fittings 

46 Seamless, Stainless 

Steel Pipes/Tubes 

47 Fittings for the 

above Pipes/Tubes 

48 Wrapping & Coating 

for pipes 

49 Chemical Dosing 

System 

: Oriplast, Finolex, Bharat Pipe & Fittings, Supreme 

Industries. 

: 

: 

: 

Heavy Metal Tubes, Nobel Tubes, Rajendra Mech. Ind., 

Vitrag, SAIL, Poonam Enterprises, N.L.Hazra, M.S.Fittings 

Choksy Tubes, MJ Patel, Nagardas Kanji, Poonam 

Enterprises, Sandulk Asia, Noble Tubes, Allied Steel, SAIL, 

Maharastra Seamless (P) Ltd, 

EBY Ind., High-Tech, Hydro technic, Hydro-Air Engg., 

Project Toolings, Shivananda, M.J.Patel, Nobles Tubes, 

Allied Steel, Poonam Enterprises, N.L.Hazra, M.S.Fittings 

: Rustech Products, HOTACO, IWL, M P Tar Products 

Hindustan Dorr Oliver, Tellabs Chemicals, 

Chembonddrewtreat ltd., NALCO 

01.02 Valves For Fuel Gas, Steam, Nitrogen, LPG & Compressed Air Facilities 


C.I. Valves for Fuel Gas & 

Compressed Air (gate, 

globe, NRV) 

CS, FS, SS Valves for 

Steam, Feed Water, & 

LPG (Gate, Globe, NRV) 

CI, CS, SS & FS Plug 

Valves 

Ball Valves : 

GM Valves : 

: Kirloskar Brothers, GM Dalui, Steam & 

Mining, H.Sarker, IVPL, AV Valves, Leader, 

Associated tooling, BDK, Kalpana Valves 

: L&T (Audco Div), Fouress, BHEL, KSB, GM 

Dalui, Leader, BDK, NECO, Associated 

Tooling, Hawa Egr., Vass Ind, Advance 

Valves, Kalpana Valves 

: Vass Ind., Xomox, Virgo, BDK, Leader, 

Steam and Mining, GM Dalui, H.Sarkar, 

Audco 

Audco, Vass Ind, KSB, BDK, Microfinish, 

Niton,AL Saunders, Xomox, Virgo, United 

Engineers, Steam & Mining, Hi-Tech 

B.Valves 

Bombay Metals, GM Dalui, Leader, NECO, 

Kalpana Valves 



GS-13



Butterfly Valves : 

Diaphragm Valves : 

Pressure Control 

Valve/Pressure Reducing 

Valve 

Large Diameter Goggle 

Valve 

Fabricated Gate Valves : 

Safety Relief Valve 

(Pressure relief Valves) 


: 

: 

: 

Audco, Fouress, Kirloskar Brothers, IVPL, 

Inter Valve, Virgo, AL Saunders, Keystone, 

BDK, Leader, AVC Engg., Crowley & Ray, 

Xomox, Tyco, Hi-Tech. 

AL Saunders, Fluid System, Leader, BDK, 

Xomox, Steam & Mining 

JNM, Fouress, Bestobell, IL, Mazda, Nirmal 

Ind., Vanaz, Kosan Metal, Vass Ind., RK 

Control, Fluid Line, Forbes Marshal, Leader. 

Audco, Fouress, Cimmco, L&T 

Fouress, Cimmco, BECO, Beekay, L&T, 

Kalpana Valves 

BHEL, Keystone, Bliss Anand, L&T (Audco 

Div.), Sempell, Fainger, Leser Valves (P) 

Ltd., IL, Anderson, Kosan. 

02.03 Miscellaneous Gas Facility & Compressed Air Equipment 


Oxygen Acetylene & LPG 

Manifolds 

SS Bellows Expansion 

Joints 

Centrifugal Gas Booster : 

Twin Lobe Type Booster : 

: 

: 

Kamrup Industrial Gases, INOX, Titan 

Engg., BOC, Ramba Hydrogen, Asiatic 

Oxygen 

Flexican, Flexatherm, SURR Ind., Pressel 

(Cuttack), BD Engr., Eludyne Engr., SPB, 

SEPL, PEBI, Lonestar, GBM Mfg., TI 

Flexible Tube. 

Andrew Yule, TLT, James Howden (U.K), 

Donkin (U.K), Hibhen 

Skoda, CKD Kompressors, MD Pneumatics, 

Demag Delavl, Bryan Donkin Sulzer, Oil & 

Gas Plant Engg., (Tuthill), Kay International 



GS-13




Gas/Air Compressors : 

Hoses : 

Valves for Oxygen Services: 


1. Non-Ferrous: 

For Isolation : 

Ingersoll Rand, Atlas Copco, KG Khosla, 

Kirloskar Pneumatic, Chicago Pneumatic, 

Mannesman Demag, Eliat, Cooper, Sulzor, 

Corken (USA) 

Flexican, Gaytri Industrial Corpn., Inalsa, 

Teksons, Sudeep Industries, Markwell 



Bestobell (UK), ETH IRELAND (France), 

RT Orseal (UK), Truflo (Belgium), 

Worcestor Controls (UK), 

Quick Sheet-off Valve : Bestobell (UK), ETH IRELAND (France), 

RT Orseal (UK), Truflo (Belgium), 

Worcestor Controls (UK), Moorco, SEBIM 

Pressure Control Valve (PCV) & 

Flow Control Valve (FCV) 

: SEVERN (UK), NELES SECK GLOKON 

(UK), IL (Palghat) 

Solenoid Valve : AVCON, SEITZ, ROTEX, ASCO 

Safety Relief Valve (SRV) : KUNKLE (USA), KEYSTONE (USA), 

BROADY (UK), MOORCO, SEBIM, IL 

(Palghat) 

Pressure Regulators (Self 

regulating with pressure 

gauge)for Oxygen 

2. Stainless Steel (SS) 

(manual) 

POWER & ENERGY 

: ESAB, BOC, Speciality Gases, Kamrup 

Industrial Gases, Venaz Engineers, Nirmal 

Ind. 

: Precision Engg., BDK, Niton, Akay, Leader, 

Audco, Sakhi & Co., KSB 

GS-13





Air Drying Uuit : 

Condensate Pumps : 

Ejector : 

Trap & Strainer for 

Compressed Air & Steam 

Actuators 

Electrical 

Pneumatic 

Heat Exchanger 

(Shell & Tube Type) 

Control Valves : 

Pressure Vessel & Tanks : 

Thermal Insulation : 

Suction Filters : 

: 

: 

: 

: 

Chemech, Cleanair, Delair, Indcon, Mellcon, 

Mirch Mirex, Gasoenergy System Pune. 

KSB, BHEL, Kirloskar Brothers, Mather & 

Platt, Khimline, Sigma 

BHEL, Weigand, Newfield, Mazda 

Uniklinger, ESCO, JNM, Dryton Greaves, 

Forbes Marshall, Hawa Engrs., Mazda 

AUMA India, Beacon Rotork Controls, 

Continental Profiles, Emtork Actuators, 

Limitorque 

Marsh Engg., Keystone, IL, Massoneilan, EL- 

O-MATIC, Virgo, AL Saunder, L&T, Flocan 

BHPV, Kaveri, Texmaco, Thermax, Babcock 

& Wicox, Parkair Engg., Rhine, Universal 

Heat Exchanger, Godrej, L&T, GEI Godavari, 

Patel Air Temp., Hindustan Radiaton 

Blue Star, Fouress Engg., IL, JNM, Mazda, 

Forbes Marshall 

Beekay Engg., BHPV, ISGEC, Kaveri Engg., 

TSL, Lloyds Steel, Mukand, Parkair Engg., 

Grasim Industries, Anup Thermal System, 

Texmaco, SV Tank, Grasim Industries, 

Hyderfuel Industries. 

Hyderapad Industries, Lloyds Insulation, 

Rockwool, Thermax Heat Tracers, U.P. 

Twiga Fibreglass. 

FMI, KAAF, L&T, Flakt, Autokiln Filter, GEC 

Alsthom, Filtration Engr., ARF Engg., ABB, 

Dyna Filter, Purolator Filters, GM Dalui 



GS-13




02.04 Pipes & Fittings for Water Supply, Gas Facilities, Steam and Compressed Air 

Facilities. 


SW/SAW, ERW/EFW MS 

Pipes 

SS Pipes / SS Fittings : 

Seamless, Stainless Steel 

Pipes/Tubes 

Fittings for the above 

Pipes/Tubes 

RCC Pipes & Fittings : 

: 

: 

: 

SAIL, BHEL, TISCO, Jindal, Ajanta, Zenith, 

Saw Pipes, Welspun, Man Industries, 

Surindra Engg., Maharastra Seamless, 

Indian Seamless, BST, Advance Steel, Good 

Luck, Indus Tubes, Mukat, Lloyds, Poonam 

Enterprises, Soor Neogi Koumar. 

Heavy Metal Tubes, Nobel Tubes, Rajendra 

Mech. Ind., Sterling Supply Agency, Vitrag, 

SAIL, Poonam Enterprises, N.L.Hazra, 

M.S.Fittings 

Amardeep Steel, Choksy Tubes, MJ Patel, 

Nagardas Kanji, Poonam Enterprises, 

Sandulk Asia, MEC Tubes, Nagardas & 

Kusai, Noble Tubes, Allied Steel, Kamlesh 

Tube, Menilal & Bro, Uday Tubes, SAIL, 

Maharastra Seamless (P) Ltd, Imperial 

Steel, Soor Neogi Koumar. 

EBY Ind., High-Tech, Hydro technic, Hydro- 

Air Engg., Project Toolings, Shivananda, 

M.J.Patel, Nagardas & Kusai, MEC Tubes, 

Nobles Tubes, Amardeep Steel, Allied Steel, 

Kamlesh Tube, Menilal & Bros, Poonam 

Enterprises, N.L.Hazra, M.S.Fittings 

SUR Industrial Pipes, Hind Ceramics, Indian 

Hume Pipes, Daya Cuncrching. 

HDPE Pipes & Fittings : EMCO, KWH Heliplastic Polyolefins, Oriplast 

PVC Pipes & Fittings : 

Oriplast, Finolex, Bharat Pipe & Fittings, 

Supreme Industries. 



GS-13




03. VENTILATION, AIR CONDITIONING & AIR POLLUTION CONTROL EQUIPMENT 


Centrifugal fans for 

Ventilation 

Centrigugal fans for 

Dedusting 

Tube axial fans / Propeller 

Fans 

: C.Doctor, EFE, AEROVENT, Flow Link, 

Andrew Yule, RIECO, ISEL, BATLIBOI, 

Flaktwood, REITZ, ACCEL, Dustven, 

INDFAN, 

: 

BHEL, TLT, C.Doctor, Andrew Yule, RIECO, 

Batliboi, F.Harley, Flaktwood, REITZ, 

DUSTVEN, ISEL, INDFAN 

: C.Doctor, EFE, Flow Link, ALMONARD, 

ACCEL, KHAITAN, AEROVENT, ISEL, 

INDFAN 

Panel filter for air : FMI, Clean Filter Industries, EFE, ACCEL, 

FILTRONIC, FLOWLINK, CADILLAC, C. 

DOCTOR 

Air washer : 

Man coolers : 

Roof exhauster : 

Window air conditioners : 

Packaged air conditioners : 

C.Doctor, EFE, FLOW LINK, FHARLEY, 

ALSTOM, Dustven, BATLIBOI, FMI 

C.Doctor, Ventura, LM ENGINEERS, 

KHAITAN, ALMONARD, DUSTVEN, 

FLOWLINK 

C.Doctor, EFE, ACCEL, ALMONARD, 

FLOWLINK, INDFAN, AEROVENT 

Fedders Lloyd, VOLTAS, Blue Star, ARCTIC, 

Carrier Aircon, LG, Samsung, HITACHI 

VOLTAS, Blue Star, KIRLOSKAR, ACCEL, 

BATLIBOI, EMERSON, FEDDERS LLOYDS, 

ROOS TEMPKOOL, ROOTS COOLING 



GS-13





Packaged chillers : 

Air handling units : 

Cooling towers : 

VOLTAS, Blue Star, ALSTOM, Batliboi, 

ACCEL, FEDDERS LLOYD, KIRLOSKAR, 

PNEUMATIC 

VOLTAS, BLUE STAR, ALSTOM, BATLIBOI, 

PATELS AIR TEMP, ROOTS COOLING 

PAHARPUR, MIHIR, ADVANCE, GAMMON 

INDIA, Southern Cooling Towers Ltd., 

SHRIRAM TOWER TECH. 

Refrigerant compressors : VOLTAS, SHRIRAM, ACCEL, BLUE STAR, , 

Atlas Copco, Kirloskar, HITACHI 

Cyclones : 

THERMAX, RIECO, ALSTOM, C.DOCTOR, 

F.HARLEY, Dustven, EFE 

Multicyclones : THERMAX, ALSTOM, C. DOCTOR, 

BATLIBOI, RIECO, F.HARLEY, EFE 

Bag filters 

(Cap – 10,000 m 3 /h to 

80, 000 m 3 /h) 

Bag filters 

(Cap –Above 80,000 m 3 /h) 

Wet scrubbers : 

Venturi scrubbers : 

Electrostatic precipitators : 

: THERMAX, ALSTOM, ANDREW YULE, 

RIECO, C.DOCTOR. F.HARLEY, Dustven, 

BATLIBOI, FMI 

: 

ALSTOM, RIECO, THERMAX, VAI, Dustven, 

BATLIBOI 

ALSTOM, THERMAX, BATLIBOI, RIECO, 

C.DOCTOR, F.HARLEY, EFE, SOIL & 

ENVIRO SYSTEM 

BATLIBOI, THERMAX, RIECO, ALSTOM, 

Dustven 

ANDREW YULE, THERMAX, BHEL, 

VOLTAS, ABB, VAI 

Insulation TWIGA, LLOYDS, BAKELITE HYLAM, 

MALANPUR ENTECH 

Valves for air conditioning : DANFOSS, HONEYWELL, BLUE STAR 

Vibration isolators : DUNLOP, EMERALD 

Centrifugal horizontal 

pumps 

Horizontal split casing 

pumps 

: 

: 

KSB, BEACON WEIR, VOLTAS, 

KIRLOSKAR 

VOLTAS, BEACON WEIR, KSB, 

KIRLOSKAR 



GS-13




04. HANDLING & HOISTING EQUIPMENT & COMPONENTS 

04.01 Equipment 


EOT Crane 

(Up to 10T capacity) 

EOT Crane 

(Up to 50 T capacity) 

EOT Crane 

(Above 50 T capacity) 

: Armsel, Avon, FAFECO, Mukand, WMI, 

Anupam, Shivpra, Tubrofurguson 

: 

HEC, Jessop, Mukand, Hyderabad Ind. Ltd., 

WMI, FAFECO, Unique, Anupam 

: Jessops, HEC, Mukand, FAFECO, Unique, 

WMI, . 

Underslung Cranes (Upto 

5t only) 

: Armsel, Brady & Morris, Shivpra 

Electric Hoists : Armsel, Shivpra,WH Brady, Brady & Morris, 

Grip Engrs., Hi-tech, Century Crane 

Transfer Cars : HEC, L&T, Hyderabad Ind., Mukand, Eqipt 

Engrs, ELECON, TRF 

Chain Pulley Blocks & 

hand operated travelling 

cranes. 

: Armsel, Century Cranes, Brady & Morris, Light 

Lift Ind., Hi-tech, MR Engg. Lifting Equipment 

Shunting Winch : Beekay, HEC, Armsel, Century Cranes, Nirmal 

Equipments, Mining & MH Equipment, Cyclo 

transmission 

Jib Crane : Brady & Morris, Century Cranes, Hi-tech, Grip 

Engrs., Elite, Light Lifting, Armsel 

Crawler Mounted Mobile 

Crane 

: TIL, Hyderabad Industries, TATA-P&H 

Excavator/ Shovel : TIL, HEC, Hyderabad Industries, BEML 

Elevator/Lift : OTIS, OMEGA, Kone, ECE 



GS-13




04.02 Mechanical Components/ Equipment 


Hooks : Herman Mohta, Free Trading Corporation, 

Steel Forgings & Engg.. 

Flexible / Geared coupling : Hicliff, Concord, Wellman, GBM, Alliance, New 

Allenbery Works,Elecon, 

Wire rope : Bharat Wire Rope, Orion Ropes, Usha Martin 

Bearings for Cranes : SKF, FAG 

Bearings for other 

equipment 

: SKF, FAG, Tata Timken, Asian Bearings, 

NRB,MBM 

Oil Seals : Vaco Oil Seals, Rubber Equipment & Engg. 

Sealjet India (Pune), Sealpack, Champion 

Seals 

Lubrication Fittings : Lubcon, AFMC, Prakash, Lincoln 

Lubricating Systems : AFMC, Prakash, Grindwell Norton, Lincoln 

Helios 

Gear box : New Allenburry, Greaves Cotton, ELECON, 

Shanti Gears, Flender, AR Engg, Kirloskar,I.C. 

Hydraulic Systems : Vickers Sperry, Yuken, Manesmann, Rexroth, 

Hugglands Denison-Parker 

Hydraulic Coupling : Fluidomat, Ghatge Patil, VOITH, Prembrill 

Centrifugal blowers : REITZ, Flaht Wood, James Howden (UK) 

Burners : Stein Heurtey, Techint, LOI, Weswan North 

American, Ecllpse, Hotwork 

Recuperators : Eastern Equipment, GEFFI (Germany) 

SAFMAT (France), North American Minnt. Co. 

Thermal Transfer Corporation (USA) 



GS-13





Hydraulic 

Power/Cylinders 

High Pressure 

Vane/Piston Pump 

: Rexroth, Vickers, Wipro, Usha Telehoist, 

Veljan, Yuken, Oscar. 

: Vickers, Yuker, Rexroth, Hugglands, Denison 

Crusher : Sayaji, HEC, McNally Bharat, TRF, ELECON 

DCEM Brake : Electromag, BCH, Industries Syndicate, Storm 

Kraft, Speed-O-Control 

Track type Limit Switch : Electromag, BCH, Speed-O-Control, Jayshree, 

EP&C, Bengal Technocrats 

Thruster Brake : Electromag, BCH, Speed-o-Control, Elite 

Belt changing Device : Nilos, Shawalmex 

Conveyor Belting : Northland Rubber, Phoenix-Yule, Oriental 

Rubber 

Vibrating Screen : IC, TRF, ELECON, McNally Bharat, L &T, HEC, 

Orien, Electromag, Hydrabad Industries 

Vibratory Feeder : Electromag, IC, TRF, Orien Engineers, 

ELECON, McNally Bharat 

Magnetic Separators : Electromag, WMI, Magnet Corporation, Electro 

magnetic Ind., Ericz, Sartorius, Hans Bockels, 

Krupp Forder, Technick ,L & T 

Pneumatic Actuators : Prepec, Technomech, Nucon Industries, 

OSCAR Equipt, Veljan Hydair. 

Electro Mechanical 

Actuators 

: 

PREPEC, Technomech, Pebco 



GS-13





Rubber liner : TEGA, Kaveri 

Polymer liner : 

Polyethelene liner : 

Polyurethane liner : 

Cast Basalt liner : 

Belt Scraper/ Belt 

Cleaner 

TEGA, Kaveri 

Kaveri, Tega 

Kaveri, Tega 

DECCAN, Enviro Abrasion 

: Hosch Equipment, Vinar IDC, Kaveri Macmet, 

Hindustan Udyog Ltd., Karam Chand Thapper, 

Cobit Engg, Elecon, TRF, Promac, BMH 

Concare 

Belt Switches : Jayshree, PROTO CONTROL, EPC 

Bin Vibrator : Electromag, Electromagnetic Industries, IC 

Samplers : 

Belt Vulcanisers : 

Sector Gates, Diverter 

Gates, Rack and Pinion 

Gates etc. 

Flexowel Conveyors : 

Drag Chain Conveyors : 

: 

Prisector (UK), Ramsay Engg (USA), Eastmn 

Crusher, Advanced system sampling (P) Ltd. 

Shaw Almex, Nilos India, SV Dattar 

Vinar, IDC, Macmet, TRF, Precision 

Processing, Moktali, Holtzman, Mining & 

Material, Chennai Radha, 

METSO, Flexowel 

Moktali Engrs., TRF, Equipt Engrs, Redler 

India, Enviro Abrasion, Karam Chand Thapar, 



GS-13





Bucket Elevator : 

Belt Feeder : 

Reclaimer : 

Stacker : 

Stacker – Cum- 

Reclaimer 

: 

Wagon Tippler : 

Wagon Loader : 

Belt Weigh Feeders & 

Weigh Hopper 

Belt Weigh Scale : 

: 

Moktali, Golden Electrical, Hindustan Udyog, 

Vinar, Cobit, Shree Conveyor, IDC, Orien, 

Macmet, Elecon, TRF 

Vinar, IDC, HEC, Orien, Macmet, Elecon, TRF, 

Cobit 

Metso, L&T, Elecon, TRF, HEC 



L&T, HEC, Elecon, TRF, Metso 

L&T, HEC, Elecon, TRF, Metso 

Kistler – Morse, Sartorius Mechatronics, 

Transweigh, Avery, Jenson Nicholson 

Kistler-Morse, Transweigh, Avery, Sartorius 

Mechatronics, Jenson Nicholson 

Conveyor belt pulleys : Elecon, TRF, McNally Bharat, Macmet, HEC 

Conveyor Idlers : 

Pneumatic Handling 

Equipment 

Front – end – loader : 

Fork-lift-truck : 

: 

Elecon, TRF, McNally Bharat, Kali, Hindustan 

Udyog Ltd., Macmet 

TTG, Scorpio 

TIL, Hyderabad Industries Ltd., 

Godrej, Voltas, TIL 



GS-13




05. REPAIR & MAINTENANCE FACILITIES 


Centre Lathe : 

Universal Milling m/c : 

Shaper : 

Radial Drilling m/c : 

Horizontal Boring m/c : 

Submerged Arc Welding 

Set 

HMT, Mysore Kirloskar, HEC 

HMT, BFW, Batliboi 

PAL, P&B, Loyal 

HMT, Batliboi, Kerry Jost, HEC 

HMT, HEC, PAL 

: Advani, ESAB, ADOR, Mogora, COSMIC 

Welding Rectifier : Advani, ESAB, ADOR, Mogora, COSMIC 

Welding Transformer : Advani, ESAB, MEMCO 

Universal Tool and Cutter 

Grinding m/c 

: HMT, Praga, Batliboi 

Hydraulic Press : BEMCO, P&B, Centerprise 

Cast Iron Plate : Jash, Madras Gauge, P&B 

Power Hacksaw : ITL, P&B, EIFCO 

Column Drilling m/c : HMT, Thakoor, Kerry Jost, EIFCO, Batliboi 

Bench Drilling m/c : Accuax, EIFCO, P&B, Thakoor 

Double-ended Pedestal 

Grinder 

: Grind Tools, GECO, AMC, P&B 

Cylindrical Grinder : HMT, Mysore Kirloskar, ELP 

Tools & Tackles : P&B, Mekaster, Centerprise, Ally 

Measuring Tools and 

Gauges 

: P&B, Bombay Tools 

Garage Equipment : ELGI, USHA, WAP, P&B 

Oiling & Greasing : ELGI, P&B 



GS-13

06. ELECTRICAL 




The list of acceptable makes for various electrical and automation equipment is given below. 

A ) POWER DISTRIBUTION EQUIPMENT 

SL. 

NO. 

1. TRANSFORMERS 

EQUIPMENT PREFERRED MAKES 

a) DISTRIBUTION 

TRANSFORMER (OIL 

TYPE) (11 or 6.6/0.433 

KV) 

b) DRY TYPE 

TRANSFORMER 

ABB / AREVA / / CGL / BHEL / BHARAT BIJLEE / VOLT 

AMP/ KIRLOSKAR /INTRA VIDYUT / 

INTRA VIDYUT / VOLTAMP / KEC 

2. 11kV / 6.6KV ISOLATOR A BOND STRAND / S&S,MADRAS / HIVELM / SIEMENS / 

DREISCHER-PANICKER. 

3. 415V SWITCHBOARD SIEMENS / L&T / GE POWER / SCHNEIDER 

4. LT BUSDUCT STARDRIVE / C&S / PCE / ECC / BRIGHT ENGINEERS/ 

VIDHYUT CONTROL 

5. BATTERY 

a) NICKEL - CADMIUM AMCO / HBL NIFE 

b) VALVE REGULATED 

LEAD ACID 

MAINTENANCE FREE 

BATTERY (VRLA) 

HBL NIFE / AMARARAJA / EXIDE 

c) BATTERY ( PLANTE) HBL NIFE / AMARARAJA / EXIDE 

6. BATTERY CHARGER/ 

DCDB 

CHHABI / HBL NIFE/ CALDYNE / AMARA RAJA / 

KIRLOSKAR 

7. PROTECTIVE RELAYS AREVA / ABB / SIEMENS/ER 

8. AUXILIARY RELAYS ABB / ER / SIEMENS / AREVA 

9. HEAT SRINKABLE 

CABLE JOINTING KITS/ 

STRAIGHT THROUGH 

JOINTS (H.T) 

10. METER (ANALOGUE 

TYPE) 

11. CURRENT 

TRANSFORMERS 

12. POTENTIAL 

TRANSFORMER 

RAYCHEM / DENSON / M-SEAL 

IMP / AE / MECO / SECURE METERS / CONZERV / L&T / 

RISHAV 

ABB / SILKANS / INSTRANS / PRAGATI / IMP/ AE / 

KAPPA / PRAYOG / SIEMENS / L&T 

ABB / BHEL / SILKANS / PRAGATI / IMP / KAPPA / 

PRAYOG /SIEMENS / ABB / INDOCOIL / PRECISION 



GS-13

SL. 

NO. 




EQUIPMENT PREFERRED MAKES 

13. 11KV/ 6.6KV CABLES ASIAN CABLES (RPG) / CCI / UNIVERSAL / NICCO / 

POLYCAB / HAVELLS 

14. DIGITAL TYPE 

MULTIFUNCTION 

METER 

CONSERVE / L&T / SECURE / ER / RISHAV 

B ) LT PANELS , DRIVES , AUTOMATION & CONTROL ACCESSORIES. 

SL.NO. SUB GROUP MAKES 

1. MCC (NON DRAW 

OUT) 

2. POWER 

DISTRIBUTION BOARD 

(PDB) 

3. CONTROL DESK 

&POST 

4. LOCAL CONTROL 

STATION (LCS) 

5. LIGHTING 

DISTRIBUTION BOARD 

MLDB, SLDB 

SCHNEIDER / L&T / SIEMENS / GEPOWER 

HINDUSTAN CONTROL / VENUS / SIEMENS / ABB / L&T 

/ GEPC / HAVELLS 

HINDUSTAN CONTROL / POWER & PROTECTION / 

ECC / VENUS / BCH / HAVELLS / GEMCO 


ECC / VENUS / BCH / HAVELLS / GEMCO 


ECC / VENUS / GEPC / BCH 

6. VVVF AC DRIVE ABB / ROCKWELL AUTOMATION / SIEMENS / VACON / 

SCHNEIDER / L&T 

7. SOFT STARTER ROCKWELL AUTOMATION / ABB / SCHNEIDER / 

SIEMENS 

8. PROGRAMMABLE 

LOGIC CONTROLER 

(PLC) 

9. UNINTERRUPTED 

POWER SUPPLY 

(UPS) 

10. LT AC MOTOR 

(SQ. CAGE) 

ABB ( 800 XA) / GE-FANUC ( PAC Rx7i) / ROCKWELL 

AUTOMATION (CONTROLOGIX) / SIEMENS (S7 

SERIES) 

TATA LIBERT (EMERSON) / GE / FUJI / DB 

ELECTRONICS 

ABB / BHARAT BIJLEE / CGL / KIRLOSKAR ELECTRIC 

ALSTOM / SIEMENS 

11. LT AC MOTORS ALSTOM / KEC / CGL / SIEMENS 

(CRANE DUTY) 

12. HT AC MOTOR BHEL / ABB / CGL / SIEMENS / KIRLOSKAR ELECTRIC / 

ALSTOM / WEG / GE 

13. LT AC GEARED KIRLOSKAR ELECTRIC / POWERBUILD / NEW ALLEN 



GS-13





MOTOR BERRY / IEC / AUMA 

14. FLAME PROOF LT 

SQUIRREL CAGE AC 

MOTOR 

15. SLIPRING MOTOR 

(OTHER THAN CRANE 

DUTY) 

16. LT AC VVVF MOTORS 

FOR ROLLER TABLE 

APPLICATION 

17. STALL TORQUE 

MOTOR 

ALSTOM / BHARAT BIJLE / ABB / CGL 

KIRLOSKAR ELECTRIC / SIEMENS 

CGL / ALSTOM / SIEMENS / KIRLOSKAR ELECT CO. 

SIEMENS / ABB / KIRLOSKAR ELECT CO. / ALSTOM / 

CGL 

DEMAG 

18. ACTUATOR AUMA / ROTORK / LIMITORQUE 

19. MOTOR PROTECTION 

CIRCUIT BREAKER 

(MPCB) 

20. MOULDED CASE 

CIRCUIT BREAKERS 

(MCCB) 

21. MINIATURE CIRCUIT 

BREAKER (MCB) 

22. EARTH LEAKAE 

CIRCUIT 

BREAKER.(ELCB) 

SCHNEIDER / ABB / L&T / GEPOWER / SIEMENS 

SIEMENS / ABB / L&T / GEPOWER / SCHNEIDER 

HAVELLS / MDS LEGRAND / SCHNEIDER / STANDARD 

/ GEPOWER / HAGAR (L & T) / ABB / SIEMENS 

HAVELLS / MDS LEGRAND / SCHNEIDER / STANDARD 

/ GEPOWER / HAGAR (L & T) / ABB / SIEMENS 

23. HRC FUSES L&T / SIEMENS / BUSMAN / GEPOWER / INDO-ASIAN 

24. VACUUM 

CONTACTOR (LT) 

25. AC POWER 

CONTACTORS 

26. CRANE DUTY POWER 

CONTACTORS 

27. THERMAL OVER LOAD 

RELAY 

28. ELECTRONIC 

THERMAL OVERLOAD 

RELAY 

29. CONTROL SWITCHES 

/ 

SELECTOR 

SWITCHES 

SIEMENS / L&T / ABB / SCHNIEDER 

ABB / L&T / SCHNEIDER / SIEMENS / GE POWER / 

BCH 

ABB / SCHNEIDER / L&T / SIEMENS / GEPOWER 

ABB / C&S / BCH / L&T / SCHNEIDER/ GEPOWER / 

SIEMENS 

FANOX / SAMWHA / MOELLER / LG / SPECHER & 

SCHUH 

ABB / ALSTOM / BCH / KAYCEE / GEPOWER / SIEMENS 



GS-13





30. PUSH BUTTONS BCH / L&T / SCHNEIDER / SIEMENS / GEPOWER 

31. TIMERS/TIME DELAY 

RELAY 

ABB / BCH / L&T / GEPOWER / SIEMENS / EAPL 

32. AUXILIARY RELAYS ABB / BCH / L&T / SCHNEIDER / GEPOWER / SIEMENS 

33. MASTER 

CONTROLLER 

EPCC (KAKKU) / SCHNIEDER / SIEMENS / 

STROMKRAFT / TELEMECHANIQUE 

34. LIMIT SWITCHES BCH / EPCC (KAKKU) / AG MECHANIC / ESSEN 

GEPOWER / JAIBALAJI / SCHNEIDER / SIEMENS 

35. PULL CORD 

SWITCHES 

EPCC (KAKKU) / AG MECHANIC / TELEMECHANIQUE / 

JAYSHREE ENTERPRISES / STROMKRAFT / PROTO 

CONTROL 

36. BELT SWAY SWITCH EPCC (KAKKU) / AG MECHANIC / TELEMECH / 

JAYSHREE ENTERPRISES / STROMKRAFT / 

PROTO CONTROL 

37. GRAVITY TYPE LIMIT 

SWITCH 

38. ROTARY LIMIT 

SWITCH 

39. PROXIMITY &PHOTO 

ELECTRIC SENSORS 

EPCC (KAKKU) / STROMKRAFT / KAYCEE 

EPCC (KAKKU) / AG MECHANIC ENTERPRISE / 

SCHNEIDER / TELEMECH 

ROCKWELL / SCHNIEDER / SIEMENS/ OMRON / SICK / 

DELTA / LINE & LINDE / TELEMECHANIQUE 

40. PULSE ENCODER HUBNER / HEIDENHEIN / ROCKWELL AUTOMATION 

(ALLEN BRADLEY) / LEONARD BAUR GERMANY / SICK 

(GERMANY) 

41. INDICATING LAMP 

LED TYPE 

42. HOOTER / BUZZER / 

BELL / SIRENS 

43. SOLID STATE 

ANNUNCIATOR 

SIEMENS / L&T / BINAY / ESSEN / BCH / VAISHNO 

EPCC (KAKKU) / KHERAJ 

ADVANI OERLIKON / AREVA / APLAB/ CONTROL & 

DYNAMICS / DIGICON INSTRUMENTATION LTD. / L&T / 

MINILEC 

44. TEMP. SCANNER ADVANI OERLIKON / ECIL / INSTRUMENTATION LTD. / 

MASIBUS / PYROTECH / SIEMENS 

45. LAMPS BAJAJ / CROMPTON GREAVES / GE LIGHTING / 

PHILIPS / OSRAM / SIGMA 

46. LIGHT FITTING 

(FIXTURES) 

BAJAJ / CROMPTON GREAVES / GE LIGHTING / 

PHILIPS 



GS-13





COMPLETE WITH ALL 

ACCESSORIES 

EXCEPT LAMP. 

47. LIGHTING WIRE (PVC) CCI / DELTON / FINOLEX / NICCO / UNIVERSAL 

48. 5A/15A PIANO SWITCH ANCHOR / ELLORA / MDS LEGRAND / PRECISION / 

HAVELLS 

49. FLAME PROOF LIGHT 

FITTING 

50. EXHAUST FANS CGL / KHAITAN / BAJAJ 

51. CEILLING FANS CGL / KHAITAN / HAVELS 

GOVAN / BALIGA / FLEXPRO / SUDHIR / CEAG / FCG / 

SIGMA 

52. PERSONAL 

COMPUTER 

HP / DELL. / LENOVO / IBM 

53. LAP TOP/ NOTEBOOK IBM / HP / LENOVO / DELL 

54. HRC FUSE 

(SEMICONDUCTOR 

PROTECTION) 

55. ELECTRONIC 

WEIGHING SYSTEM 

56. PVC POWER CABLES 

(LT) 

57. PVC CONTROL 

CABLES 

58. HEAT RESISTANT 

CABLES (EPR/CSP & 

SR) 

59. SCREENED CABLES & 

SPECIAL CABLES 

60. CABLE TERMINATION 

KITS (XLPE) 

61. TERMINAL 

CONNECTOR 

BUSMANN / JE MULLER / FERRAZ / GEPOWER / 

SIEMENS 

ABB / SARTORIOUS / SANMAR / SCHENK / 

TRANSWEIGH / KELK 

CCI / UNIVERSAL / NICCO / RPG CABLES (ASIAN) / 

POLYCAB / FINOLEX / TORRENT / HAVELLS 

CCI / LAPP / NICCO / RPG CABLES (ASIAN) / 

UNIVERSAL / POLY CAB / FINOLEX / TOSHNIWAL / 

DELTON 

CCI / LAPP / NICCO / RPG CABLES (ASIAN) / 

UNIVERSAL / TOSHNIWAL / DELTON 

CCI / BELDEN / LAPP / FINOLEX / POLY CAB / NICCO / 

TOSHNIWAL / DELTON 

MSEAL, 3M / RAYCHEM 

CONNECT WELL / ESSEN-DINKY / PHOENIX / WAGO / 

LAPP 

62. TRAILING CABLES LAPP / CCI / UNIVERSAL / ASIAN / NICCO 

63. WELDING SOCKET BCH / SCHNIDER / BEST & CROMPTON / GEPOWER / 

HAVELL / JAIBALAJI 

64. LIFTING MAGNETS ELECTROMAG / EPCC (KAKKU) / STERLING 

MAGNETICS / SUPERLIFT 

65. POWERPACK FOR 

MAGNETS 

ELECTROMAG / BCH / EPCC (KAKKU) 



GS-13





66. RESISTORS (CRANE) BCH / ELECTROMAG / AMP CONTROL / EPCC / 

SIEMENS / RESITECH / NARKHEDGE 

67. LT CAPACITORS GEPOWER / ABB / CGL / UNI STAR / BHEL 

68. CABLE REELING 

DRUM 

69. DC 

ELECTROMAGNETIC 

BRAKE 

70. ELECTRO MAGNETIC 

OVERLOAD RELAYS 

71. OIL DASH POT 

OVERLOAD RELAYS 

72. CONTROL 

TRANSFORMERS 

73. CRANE CONTROL 

PANELS 

BENGAL TECHNOCRAT, / ELECTRO ZAVOD / 

ELECTROMAG 

BCH 

C) FIRE DETECTION & ALARM. (F.D.A) SYSTEM 

SL.NO 

DEVICES 

. 

1. INTELLIGENT DETECTORS 

( PHOTO ELECTRIC, HEAT, THERMAL) 

UL /FM / APPROVED 

2. INTELLIGENT FIRE ALARM CONTEROL 

PANELS 


3. ADDRESSABLE MANUAL CALL POINTS 

INCLUDING HAND SETS . 


4. MONITOR MODULES 


5. FAULT ISOLATION MODULE 


6. CONTROL MODULES 


7. UV FLAME DETECTORS 

UL /FM /APPROVED 

BHARAT HEAVY ELECTRICALS LTD / BHARTIA 

CUTLER-HAMMER LTD / KILBURN ELECTRICALS LTD. 

KILBURN ELECTRICALS LTD / ELECTROGEAR 

SIEMENS LTD. / INDCOIL MANUFACTURING CO. / 

INTRAVIDYUT / AUTOMATIC ELECTRIC LTD. (AE) / 

INDUSHREE / BHARTIA CUTLER-HAMMER LTD. 

HINDUSTAN CONTROL / ECC / VENUS / MEDITRON / 

EPCC 



MAKES 

SIMPLEX / NOTIFIER / EDWARDS 

-DO- 

-DO- 

-DO- 

-DO- 

-DO- 

PATOL / DETRONICS / SPECTREX 

GS-13




8. BEAM DETECTORS 


9. IR FLAME DETECTORS 

SOLAR BLIND EMBER, FIRE 


10. ANALOG LINEAR HEAT SENSING CABLE 

A) WITH METAL BRAID STEEL/BRONZE, 

COPPER 

B) WITH NYLON BRAID 


11. DIGITAL LINEAR HEAT SENSING CABLE 

A) WITH NYLON BRAID 

B) WITH METAL BRAID STEEL, 

BRONZE, COPPER . 


CONTROL UNIT FOR DIGITAL LHS 

CABLE 


12 VIDEO DISPLAY UNIT INCLUDING CPU, 

PC, MONITOR, PRINTER ETC. 



EDWARDS / NOTIFIER / SIMPLEX 

ODTI / PATOL / DET-TRONIX / 

SPECTREX 

KIDDE / L.G.M / PATOL. 

KIDDE / L.G.M / PATOL 

DELL / HP / HCL / WIPRO / IBM 

COMPATIBLE. 

13 SIREN KHERAJ / BEMCO / TULU 

14 CABLES 

A: FOR DETECTOR CABLING 

(I) IMPORTED 

BELDON / SOUTHWEST / ALPHA 

(II) INDIGENOUS 

FINOLEX / DELTON / UNIVERSAL / 

NICCO / POLYCAB / FORTGLOSTER 

/ HAVELLS 

15 POWER CABLE FINOLEX / DELTON / UNIVERSAL / 

NICCO / POLYCAB / FORTGLOSTER 

/ HAVELLS 

16 SIGNAL CABLE USHA BELTON / HCL / DELTON / 

VINDHYA TELELINK 

17 M.S.CONDUIT AS PER IS-9537-PART-II- NICCO / BHARAT / ZENITH / BEC 

1981 

/ CENTURY 

18 GI CONDUITS BEC / NICCO / ZENITH 

19 ROAD CROSSING G.I PIPES NICCO / TATA / JINDAL 

GS-13

20 F.D.A SYSTEM SUPPLIERS 

21 



ELECTRONIC PRIVATE AUTOMATIC 

BRANCH TELEPHONE EXCHANGE 

(EPABX) SUPPLIERS 

22 C.C.T.V SYSTEM SUPPLIERS 




1. ELECTRONICS CORPORATION 

OF INDIA LTD, 

2. TECHNICAL TRADE LINKS PVT. 

LTD. 

3. GUNNEBO INDIA LTD., 

4. MATHER & PLATT PUMPS (I) LTD. 

5. M/S AGNICE FIRE PROTECTION 

LIMITED. 

6. M/S TECHNICO (INDIA) PVT. 

LIMITED. 

7. NOTIFIER. 

8. SIEMENS. 

9. TECHNO FIRE. 

10. NEW FIRE. 

11. TYCO FIRE & SECURITY. 

1. M/S INDIAN TELEPHONE 

INDUSTRIES LIMITED. 

2. M/S AVAYA GLOBAL CONNECT 

LIMITED. 

3. M/S SIEMENS LIMITED. 

4. M/S ALCATEL. 

5. M/S B.P.L TELECOM PVT. 

LIMITED. 

6. M/S CROMPTION GREAVES 

LIMITED. 

7. ERICSSON. 

1. M/S E.C.I.L. 

2. M/S NELCO LIMITED. 

3. M/S DATAMATICS INFORMATION 

TECHNOLOGY LIMITED. 

4. M/S PHILIPS/BOSCH 

5. M/S PELCO 

GS-13

Sl. 

No. 

23 

24 

25 

26 



LOUD SPEAKER TALK BACK(LSTB) / 

LOUD SPEAKER 

INTERCOMMUNICATION(LSIS) 

SYSTEMS SUPPLIERS 

TELEPHONE CABLE SUPPLIERS 

FIBRE OPTIC (F.O) CABLE. 




1. M/S POWER SYSTEMS. 

2. PHI-AUDIOCOM. 

3.M/S MOTAWANE PRIVATE LIMITED 

1. DELTON CABLES. 

2. TELE-LINK NICCO. 

3. FINOLEX. 

MOLEX/LUCENT/AMPHINOL/BIRLA 

ERRICSSON/OPTEL. 

V.H.F SYSTEM MOTORALA/ YEASU/SIMOCO/ADINO 

07. INSTRUMENTATION 

A. Field Instruments: 

ITEM DESCRIPTION PREFERRED MAKES 

1. Pressure / Differential Pressure gauge : WIKA, Manometer India, A.N. Instruments, Precision 

Industries, General Instruments, Waaree instruments, 

Forbes Marshall, Walchandnagar (Tiwac) , Hirlekar (DP 

gauge) 

2. Pressure / Differential Pressure 

switches. 

3. Pressure / Differential Pressure 

Transmitters 

: 

Ifm. WIKA, Kasturba (Orion-Ashcroft),Switzer, Indfoss, 

Vasutech, 

: Emerson (Rosemount), Chemtrols (Fuji), Honeywell, 

Yokogawa, Siemens , ABB 

4. Temperature gauges : WIKA, Manometer India, A.N. Instruments, General 

instruments, Waaree instruments, GE gauges, 

Walchandnagar, Precision Industries. 

5. Thermocouple & RTD / thermowell : General Instruments, Nagman Instruments, Toshniwal 

GS-13

Sl. 

No. 





Industries, Tempsens, Pyro-electric Instruments, Industrial 

Instrumentation, Altop, Waree, Detriv. 

6. Temperature Switch : WIKA, Manometer India, A.N.Instruments, General 

Instruments, Indfoss, Switzer, Vasutech. 

7. Temperature transmitter : Emerson (Rosemount), Yokogawa, Honeywell, Siemens, 

Fuji (Chemtrols,) , ABB 

8. Rotameters : Krohne-Marshall, Instrumentation engineers, Trac, 

Eureka instruments. Chemtrols, Rota Instruments. 

9. Orifice Plate & flanges Assembly/ 

Venturi , Flow nozzle 

: Engineering Specialities, Micro-precision, Hydropneumatics, 

Chemtrols-Samil, Instrumentation ltd, 

10. DP type Flow / Level Transmitters : Emerson (Rosemount), Chemtrols (Fuji), Honeywell, 

Yokogawa, Siemens , ABB 

11. Flow Switch : Ifm. , Krohne-Marshall, Switzer, Levcon, D.K. Instruments, 

12. Electromagnetic flow meter : Yokogawa, Emerson (Rosemount), Krohne-Marshall, 

Endress & Hauser, ABB. 

13. Vortex Flow meter : Emerson(Rosemount), Krohne -Marshall, Yokogawa, 

Vortex Instruments 

14. Mass (coriolis) flow meter Emerson (Rosemount) , Yokogawa, Krohne –Marshall, 

ABB, Endress & Hauser, Rockwin. 

15. Level gauge (magnetic & reflex type) Chemtrol, Levcon Instruments, Pratolina Instruments, 

Waaree Instruments, Forbes Marshall, Techtrol, Sigma, 

Asian Industrial Valves & Instruments. 

16. Level Switch (Conductivity type) : Chemtrol (Vega), Endress & Hauser, Switzer Instruments, 

SB Electro-mechanical, Techtrol, Nivo Controls, Level- 

Tech 

17. Level Switch (Capacitance/RF type) : Chemtrol (Vega), Endress & Hauser, Switzer Instruments, 

SB Electro-mechanical, Techtrol, Nivo Controls, Level- 

Tech 

18. Level Switch (Tuning fork/ Rod type) : Chemtrol (Vega), Endress & Hauser, S.B. Electromechanical, 

,Nivo Controls 

19. Level Switch (Float type) : Emerson,Trac, Chemtrols, Forbes Marshall, D K 

Instruments, Levcon Instruments, Techtrol , V-Automat, 

Warree 



GS-13

Sl. 

No. 





20. Level Switch/ Transmitter (Displacer 

type) 

21. Level Switch/ Transmitter (Ultrasonic 

type) 

: Emerson, Chemtrols (Eckard), Trac, D K Instruments, 

Levcon Instruments, 

: Chemtrol (Vega) , Endress & Hauser, Krohne Marshall, 

Siemens (Miltronics) ,Toshbro controls (Enraf) 

22. Level Switch/ Transmitter (Radar type) : Chemtrol (Vega) , Emerson (Rosemount), , Endress & 

Hauser ,Toshbro controls (Enraf), Krohne- Marshall 

23. Level Switch/ Transmitter (Nucleonic 

type) 

: Concord International (Dr. Berthold), Emerson (Kay Ray), 

ECIL. 

24. Level switch (Electro- mech type) : Nivo Controls, Endress & Hauser, S.B. Electromechanicals. 

25. Control valve : Fisher-Xomox ,Instrumentation Ltd, Dresser Industries 

(Masoneilan) , Valtek, Samson Controls(Globe type), 

Forbes Marshall ( Arca ), ABB, Fouress, Tyco valves 

(Keystone- Butterfly), MIL Controls, Dembla 

26. Electrical Actuator : Auma, Limitorque, Marsh, Instrumentation Ltd 

( Bernard), Rotork, Keystone. 

27. Pneumatic Actuator : Fisher-Xomox , Instrumentation Ltd., Dresser Industries 

(Masoneilan), Valtek, Samson Controls, ABB, MIL 

Controls, Forbes Marshall (Arca), Keystone, Virgo, 

Habonim Vaas.. 

28. Electro-hydraulic actuator : Reineke, Askania 

29. Self- regulating pressure control valve : Samson Controls, Nirmal Industries, Forbes Marshall, 

Instrumentation Ltd. 

30. I/P converters : Shreyas-Barton, Fisher –Xomox, Forbes Marshall (Moore 

products), Marsh-Bellofram, MIL controls, ABB, Watson – 

Smith. 

31. Pneumatic Positioner, : Instrumentation Ltd., Fisher-Xomox , Dresser Industries 

(Masoneilan), Samson Controls, Forbes Marshall ( Arca), 

ABB, Fouress, MIL, 

32. Electro- pneumatic positioner Fisher-Xomox, ,Siemens, Dresser Industries (Masoneilan), 

Samson Controls, Instrumentation Ltd., Forbes Marshall 

(Arca), ABB, Fouress, MIL controls. 

33. Solenoid Valve : Burkert, Herion, Rotex, Schrader-Schovill, Jucomatic, 

Avcon, .Asco 



GS-13

Sl. 

No. 





34. Air filter regulator : Shavo-Norgren, Marsh-Bellofram, Placka, Schrader- 

Schovill. 

B. 

Control room Instrumentation 

1. Distributed Control System (DCS) : Yokogawa (CS 3000), Honeywell (Experion +C 300), ABB 

(AC 800 XA), Emerson (Delta V), Siemens (PCS 7+ 

S7400H). 

2. Programmable Logic Controllers. : Refer Electrical list. 

3. Digital Indicator : Pyrotech Electronics, Lectrotek, Chino-Laxsons, Micro 

systems, Master Electronics, Masibus Instruments, 

Ranutrol, Honeywell. 

4. Bargraph Indicator : Chino-Laxsons , Masibus Instruments , Pyrotech 

Electronics, Lectrotek, Teletherm. Ranutrol 

5. Recorders (Chart Less) : Eurotherm, Yokogawa, Chino-laxsons, Honeywell, 

Siemens, ABB. 

6. Microprocessor based controller : Yokogawa, Siemens, Honeywell, Eurotherm, Fuji, ABB, 

Forbes Marshall,Toshiba 

7. Digital scanners : Lectrotek, Micro systems, Master Electronics, MB controls, 

Masibus Instruments, Procon. 

8. DC Power Supply Unit : Aplab, Elnova,Siemens, Phoenix, Schneider, 

9. IS Interface/Zenner Barrier Pepperl & Fuchs, MTL, Stahl 

10. Signal isolators : Pepperl & Fuchs, MTL, Stahl, Yokogawa, Forbes Marshall 

(Protech), Chino-Laxsons, Phoenix 

11. Annunciation system : IIC, Procon, Micro Systems & Controls, Minilec, 

Instrumentation Ltd, Lectrotek, Piri systems, Pyrotech 

Electronics, MB controls & Systems Semuda. 

12. Instrument Panels/ Control Desk : Rittal, Pyrotech, Radha Krishna Controls, Instrumentation 

Ltd. 

13. Instrumentation Cable Universal Cables, Delton, Thermopads, KEI industries, 

Paramount Cables, Lapp cables, Cords cables, Uniflex 

cables, Brooks Cables, Elkay Telelinks, Rajnigandha, 

Special Cables, TCL Cables, Friends Cable, Daksha 

Cable, Crystal Cables, Udey Pyro-Cables, Elkay 

Telelinks, Fort Gloster 



GS-13

Sl. 

No. 





14. Thermocouple Compensating Cable : Toshniwal Cables, General Instruments, Paramount 

Cables, Udey pyro-cables, Cords cables, Brooks, Daksha 

Cables, Friends Cable. 

C. Analytical / Special Instruments 

1. Gas analysis Instruments : ABB (H&B), MSA, Emerson, Siemens, Chemtrols 

(Maihak), Forbes Marshall, Fuji, Beiler & lang (CO- 

Monitor), Honeywell, Yokogawa. 

2. Gas Detectors Beiler & lang (CO-Monitor), Dragger, Oldham, Industrial 

Scientific Corporation, Detronics. 

3. Calorific Value (CV) analyzers : Reineke, Union. Yokogawa 

4. Moisture Analyzers (Nucleonic) : Concord International (Dr. Berthold), Emerson (Analytical) 

5. ORP/PH/ Conductivity meter / 

Transmitter 

: Emerson (Analytical), Forbes Marshall (Polymetron), 

Yokogawa, ABB, Ion Exchange, Honeywell. 

6. Moisture Sensor & Transmitter : Invensys (Foxboro), Bartec, GE-Panametrics 

7. Flame Detector : Honeywell, Durag Instruments 

8. Vibration sensors & monitors : Bentley Nevada, Schenck -Avery, Josts Engineering 

(Bruel & Kjaer), SPM Instruments, , Mechanalysis India 

(IRD). 

9. Positive Displacement meter : Toshbro controls.(Bopp & Reuther), Forbes Marshall ( 

Moorco products), Liquid Controls, Emerson. 

10. Annubar / Flow tube : Emerson, Switzer Instruments. 

11. Infrared radiation pyrometer : Land, Chino-Laxsons, Toshniwal (Raytek), Ircon, Nagman 

(Wahl), 

12. Dip lance type Molten metal 

temperature measurement system & 

T/C Tips 

: Ardee Enterprise ( Electronite) , Ferrotran 

13. Slag detection system : Elof Hanson (EMLI), Land. 



GS-13

Sl. 

No. 

14. SPM analyser 

15. SOx- NOx analyser 





08. FIRE PROTECTION SYSTEM 

Emerson, Yokogawa, Durag, ABB, Honeywell, Forbes 

Marshall (Codel). 

Forbes Marshall, Emerson, Yokogawa, ABB, Honeywell 

1. Steel pipes - SAIL, ITC, JINDAL, Ajanta, Maharastra 

Seamless, Prakash Tubes Gujarat Steel 

tubes, 

2. Steel pipes fittings - Tube Bends, Jindal, Ajanta Shivananda, 

EBY Industries. 

3. Spray nozzles/Projectors - Laxmi sprinklers, Reliable, Avon, Mather 

and Platt, HD Fire. 

4. Deluge valves - Mather & Platt, ACE turnkey, Vijay Fire 

Protection System Ltd, HD Fire. 

5. Outside coating& Wrapping - Llyods/STP 

for pipes 

6. Quartzoid bulb detector - H.D. Fire Protect Co., Mather & 

Platt, Any other TAC approved 

make 

7. Diesel Engine : Kirloskar-Cummins, Crompton- 

Greaves, Ashok Leyland 

8. Fire extinguishers : New Fire, VIPL, Zenith, ASCO 

Strumech 

9. Fixed fire protection system - New Age, Agnice, Vijay 

Industries& Project , Lloyds 



GS-13




Insulation, Techno Fire Controls 

New Fire Engineers 

10. Passive Fire protection Llyod, 3M, Vijay System, Signum 

09. BOF GCP EQUIPMENTS:- 

Following equipment/supplies specific to BOF-Gas Cleaning Plant shall be 

manufactured by any of the following vendors listed below:- 



GS-13

SL. 

NO. 

1. Hood, Stack and Lance 

sealing device 




EQUIPMENT VENDOR/MANUFACTURER 

2. Hood traverse carriage, Stack 

inspection device, Hood 

bottom closure device 

3. Pressure vessels 

- Expansion vessel, Mixing 

drum, Make-up water tank, 

Sample cooler, Blow-down 

& drainage expansion tanks 

and Emergency spray 

vessel 

ISGEC, ACC-BABCOCK (ABL), BHPVL, L & T 

L&T, WMI CRANES, JESSOP, MUKAND 

ISGEC, ABL, BHPVL, TSL, KAVERI ENGG. 

4. Additive feeding system BEEKAY, SIMPLEX, MUKAND 

5. Gas holder MICCO, SMS-DEMAG, CLAYTON – WALKER 

6. Fabricated gas ducts (Dia> 

1200 mm), Trestles/Duct 

Supports, Flare stack 

structure Walkways/Accesses 

7. Electrostatic precipitator (wet 

type) 

BEEKAY, ROURKELA FABRICATION, 

BHARAT WEST – FALIA, SUBURBAN ENGG., 

KM UDYOG, OTTO, APV 

VOLTAS, OTTO, ORIENT, ANDREW YULE 

8. ID fan NEU (France), JAMES HOWDEN (UK), 

ROTHEMUHLE (Germany), DONKIN (UK), 

FLAKTWOODS 

9. Centrifugal horizontal CW 

pumps 

Fabricated equipments 

- Stack cover plate, 

Saturator, Hydraulic seal 

Recycling tank, 

Convergent/Divergent 

ducts, Changeover 

device, Hydraulic nonreturn 

valve, Condensate 

seal pots, Sump cover 

INGERSOLL, SULZER 

NHEC, BHPVL, KCP, BINNY ENGG. WORKS, 

ABL, ISGEC, OTTO 



GS-13




- For any other equipment/supplies which are not covered above, the 

make/manufacturer’s name shall be mutually agreed between Purchaser /Consultant 

and the successful Tenderer. 

10. INFORMATION SYSTEM 

Preferred Makes for Level-II automation 

Server Computers : IBM/HP/SUN 

Client Computers (PC) : IBM/Lenovo/HP-Compaq/DELL 

Network Equipment 

• Active components : CISCO 

• Passive components : LUCENT/AMP 

Application software including 

Process control models : Technology Supplier 



GS-13




11. FLUID SYSTEMS & PIPING ENGG (LUBRICATION & HYDRAULICS) 

PREFERRED MAKE OF ITEMS 

SL. 

NO. 

ITEM MAKE AREA 

1 

Piston / Vane Pumps & 

Hydraulic Motors 

Rexroth / Parker / Kawasaki / 

Eaton 

Hydraulics 

2 Gear Pump 

Del Pd Pumps (ROTODEL) / 

Tushaco / Rexroth / Parker / Alfa 

Hydraulics / Oil 

Lubrication 

3 Screw Pump IMO / Allwiler / Nortek 


Lubrication 

4 

Centrifugal Pump for 

Descaling System 

KSB / Halberg / Wier Descaling 

5 

Piston Pump for Descaling 

System 

Uraca / Wepuko / Hauhinco Descaling 

6 

Centrifugal Pump (12 Bar & 

below) 

KSB / Kirloskar / Voltas / Mather & 

Platt / Beacon / Wier 

Water 

7 

Submersible Type Sump 

Pump 

KSB / Flygt / Grundfos Sump 

8 Grease Lubrication System 

Lincoln Helios / Bijur Delimon / 

Nortek 

Grease 

9 Oil Lubrication System Lincoln Helios / Shaan Lube Oil Lubrication 

10 Air Oil System 

Rebs / Dropsa / Bijur Delimon / 

Nortek 

Rotex, / Schrader Duncan / Shavo 

Air-Oil Lubrication 

11 Air Controls 

Norgren / Nucon / Ross / SMC / 

Rexroth / Parker 

Pneumatics 

12 Hydraulic Proportional Valve 

Rexroth / Parker / Eaton / Yuken 

(Japan) 

13 Hydraulic System Rexroth / Parker / Eaton / Yuken 

14 Hydraulic Control Valve Rexroth / Parker / Eaton / Yuken Hydraulics 

15 Hydraulic Servo Valve Moog / Rexroth 

16 Manual Valves 

Manual Gate / Globe Valves 

Oil Lubrication / 

16.1 with & without gear for High 

Pressure application 

Manual Gate / Globe Valves 

KSB / BHEL / AUDCO / BDK Descaling 

16.2 

with & without for Low 

Pressure application (16 Bar 

and Low) 

KSB / BHEL / VIRGO / AUDCO / 

BDK / Fouress / Akay 

16.3 Butterfly Valve AUDCO / VIRGO / BDK 

16.4 Ball Valve 

AUDCO / FOURESS / BDK / 

VIRGO / 

16.5 Check Valve (Disc Type) – AUDCO / BDK / FOURESS 



GS-13

SL. 

NO. 

16.6 

16.7 

16.8 

17 





Low Pressure 

Check Valve ( Spring 

Loaded) – Low Pressure 

Check Valve (Spring Loaded) 

– High Pressure 

Check Valve (Disc Type) – 

High Pressure 

Control Valve for oil 

lubrication system 

AUDCO / BDK / FOURESS 

AUDCO / BDK 

AUDCO / BDK 

Forbes Marshall / Samsung / 

Fisher / RK Controls / Nirmal 

Industrial Controls 



Oil Lubrication 

18 

Spray Valve for Descaling 

System 

Hunt / Elwood Descaling 

19 Air Release Valve Upadhyay / Steam & Mining / BDK Water 

20 Air / Gas Safety Relief Valve 

Moorco / L & T / Fainger / 

Mankenberg 

Descaling 

21 

Actuators for operating 

Valves 

L& T / Virgo / Rotex / AVCON Oil Lubrication 

22 

Accumulator with safety shut 

off block 

Christie / Hydac / Parker / EPE Hydraulics 

23 Accumulator Charging Kit Christie / Hydac / Parker / EPE Hydraulics 

24 

Accumulator for Descaling 

System 

WSR / BHPV / ISGEC Descaling 

25 Pressure Filter Hydac / Pall / Internormen / Parker Hydraulics 

26 Return Filter Hydac / Pall / Internormen / Parker Hydraulics 

27 Basket Filter 

Internormen / Hydac / Pall / Ball 

Filters 

Oil Lubrication 

28 Auto Back wash Filter 

Ball & Kirch, / Hydac / Fluid 

engineering 

Descaling / Water 

29 Basket Strainer for water 

Superflo / Hydac / EPE / 

Internormen / Multitex 


Lubrication 

30 HP Compressor Ingersoll Rand / Aerotechnic Coltri Descaling 

31 Heat Exchanger Alfa Laval / Indswep / Tranter 


Lubrication 

Sigma / Levcon / Shridhan / Hydraulics / Oil 

32 Level Indicator Switch Magnetrol / Buhler / Tectral / Lubrication / 

WEKA / Peneberthy / Kobold Descaling 

33 

Pressure Gauge & 

Temperature Gauge 

A.N. Instruments / H.Guru / Wika / 

Forbes Marshal / Stauff / Hydac / 

kobold 


Lubrication / 

Descaling / Utility 

Services 

34 Pressure Switch 

Rexroth / Switzer / Hydac / Parker / 

Dadfoss (Indfoss) / Kobold 


Lubrication / 

Descaling 

35 Differential Pressure Fisher Rosemount / Forbes Descaling 

GS-13

SL. 

NO. 





Transmitter Marshall 

36 Thermostat 

37 

Differential Pressure Gauge 

cum Switch 

Switzer / Hydac / Stauff / Verma 

Trafag / Johnson Control / Kobold 

Switzer / Danfoss / Indfoss / Hydac 




Lubrication / 

Descaling 


Lubrication / 

Descaling 

38 Pressure Transmitter Hydac / Forbes Marshall Hydraulics 

39 Temperature Transmitter 

Hydac / Forbes Marshall / Kobold / 

Johnson Control / 

39 Flow Switch 

Forbes Marshall / Stauff / Kobold / 

Rockwin / SMC / HYLOC / Flow 

Mon 

40 Flowmeter cum Totaliser Rockwin / Forbes Marshall 

41 Pipes / Tubes 

41.1 

41.2 

41.3 

Carbon Steel Seamless Pipes 

/ Tubes 

Stainless Steel Seamless 

Pipes / Tubes 

Carbon Steel ERW - SAW 

Pipes / Tubes 

42 Pipes / Tubes Fittings 

43 

Clamps (Polypropylene 

Clamp, U-Bolts) 

44 Hose with end fittings 

Jindal / Ratnamani / Maharashtra 

Seamless / MJ Patel / Indian 

Seamless / Gandhi Special Tubes / 

BHEL 

Jindal / Choksi Tubes / Ratnamani / 

MJ Patel 

Maharashtra Seamless / MJ Patel / 

Gandhi Special Tubes / SAIL / 

Jindal Saw / Ratnamani / Surya 

Roshni / MAN / Wellspun 

Hyd-air / Hyloc Hydoitechnic / MS 

Fittings / NL Hazra / Project Tooling 

Systems / Tube Bend / Parker / 

AVIT / Zest Technologies 

Project Tooling Systems / Stauff / 

Hydair 

Hydrokrimp / Indo-industrial / 

Hydrolines / Superseals / Parker 

Oil Lubrication / 

Descaling 


Lubrication / 

Descaling 


Lubrication / 

Descaling 


Lubrication / 

Descaling 


Lubrication / 

Descaling 

45 Flanges Echjay / NL Hazra / MS Fittings 


Lubrication / 

Descaling 

46 SAE Flange AVIT / Parker / Hyloc / Stauff Hydraulics 

47 Electrical Heater Escorts / Alco / Helios 


Lubrication 

48 Air Breathers Internormen / Parker / Hydac 


Lubrication 

49 Portable Filter Unit Internormen / Hydac / Rexroth / Hydraulics 

GS-13




SL. 

NO. 


50 Contamination Analysis Kit 

Parker 

PALL / Hydac / Internorman / 

Parker 

Hydraulics 

51 Centrifuge Alfa Laval / Westfalia 


Lubrication 

52 Vacuum Dehydrator Filtervac / Pall / Parker / Nortek 


Lubrication 

53 Electrostatic Liquid Cleaner KLEENTEK / Ferrocare Hydraulics 

54 

Mobile Motorised Pump- 

Motor-Filter Unit for Oil Filling 

PALL / Hydac / Internorman / 

Parker 


Lubrication 

55 

Chain Pulley Blocks & Hand 

Operating Traveling Cranes 

Batliboi / Moris / WH Brady & Co. 


Lubrication 

56 Spray Nozzles Lechler / Spraying system 

Descaling / Gear 

boxes 

57 Nitrogen Booster Station Hydac / Parker Hydraulics 

58 Water in Oil detector IMA / Parker / UCC 

59 Lubricating oil 

Indian oil / HP / BP / Castrol / Mobil 

Exxon 

60 Hydraulic oil 

Indian oil / HP / BP / Castrol / 

Mobile Exxon 

61 Flushing Oil 


Mobile Exxon 

62 Grease 


Balmer Lourie 

63 Expansion Joint ESBI / STANFLEX / ELAFLEX 



GS-13

02. GASES AND LIQUID FUELS 

02.01. REGULATIONS 




The entire interplant and in shop pipelines shall conform to the provisions of relevant 

Indian statutory regulations, wherever applicable, such as : 

- Indian Safety Rules 

- Static & Mobile Pressure Vessels Rules 

- Indian Petroleum Regulations 

- Indian Explosives Manual 

- The Carbide of Calcium Rules 

- Indian Boiler Regulations 

The Contractor shall have to obtain clearance/ approval of all the relevant drawings/ 

documents from such statutory bodies. 

02.02. PIPING LAYOUT 

General 

Routing and layout of piping system shall be as per good engineering practice. Following 

factors shall be taken into consideration while designing piping system. 

• All functional requirements shall be fully satisfied. 

• Adequate clearance is provided for equipment and operating personnel. 

• Easy access for operation and maintenance of piping component. 

• Convenient supporting points for piping, equipment, valves, etc. 

• Adequate flexibility for thermal expansion / movements. 

• Aesthetics and neat appearance. 

Pipe Laying for Fuel Gases, Industrial Gases, Liquid Fuels, Compressed Air and 

Steam 

01. The gas pipes installed along building wall should not cross window and door 

way. 

02. While laying high pressure gas pipes along the walls, the later should be fireproof. 

In doing so, the gas pipes should be laid along solid walls or above the 

windows of upper floors of plant buildings. 

03. When gas pipes are installed along external walls of buildings below window 

ways, installation of flange, thread joints and also installation of accessories is 

not allowed. 

04. Gas pipe may be laid along with pipes of water, steam, air, etc. and also with 

oxygen on a common support provided conditions stipulated under various 

clauses are followed. 

05. The following conditions shall be observed when installing gas pipes with other 

pipes : 

Gases & Liquid Fluids 


GS-02




a) Additional pipes on existing gas pipes will be allowed to be laid only 

with the permission of concerned plant personnel. 

b) In each case, the gas pipes and supporting structures shall be checked 

with due consideration for additional loads and practical state of the 

metal structure of gas pipes. 

c) When installing with pipes carrying corrosive fluids they shall be kept at 

least 500 mm below or by the side of the gas pipe at a distance of 

500mm. 

If flange joints are provided on pipes carrying corrosive liquids, it is 

necessary to mount protective baffle plate against falling of corrosive 

liquids on gas pipes and their supports. 

d) The associated gas pipes at the places on gas pipes where valves and 

other devices are mounted, should be kept at a minimum 800 mm 

distance from the main pipe. 

e) Drainage of the associate pipes should be laid to one side at a distance 

so that condensate does not fall on gas pipes/ its accessories, 

supporting structures and their elements, etc. 

06. The branch line should generally be installed outside building along roof wall. 

Branch line having diameter less than 500 mm may be laid inside shop building. 

07. Branch line from gas main entering into building through building wall should 

pass through casings. Internal clearance between casing and pipe should be 

suitably filled up, wherever required. 

08. Gas branch line from gas main passing through roof covering should have 

circular opening. For this purpose, a circular opening should be made on roof 

and a taper hood should be provided on the branch line above the roof for 

protection from rain. 

09. Shop headers (except headers of By-product Plant) should be mounted at a 

height having minimum ground clearance of 4500 mm, when laying them outside 

the building wall. 

10. Layout of gas consuming units in various shops should be such that it is 

possible to bring the gas pipes above ground. 

11. Gas pipes of coke oven, natural gas and also their mixtures with blast furnace 

gas may be installed in channels and casings, in the region of gas supply to 

furnace and other consuming units. 

The following conditions should be observed for this purpose : 

a) Clearance between wall and bottom should be at least 400 mm, and for gas 

pipes of 200 mm and below clearances should not be less than the gas pipe 

diameter. 

b) Installation of flanges, threaded joints and accessories (except accessories for 

removal of condensate on a pipeline) is not allowed when it is laid in a channel. 

The number of welds on such gas pipes should be restricted to a minimum. 



GS-02




c) Installation of gas pipes with air pipes to gas consumer units is allowed to be laid 

in channels. 

d) Channels with gas pipes should not cross other channels, In case, it is 

unavoidable, air tight tie-plate should be made and gas pipe should be placed in 

casing. Ends of casing should be taken out beyond the limit of tie-plate by 300 

mm at both ends. 

e) Channels should have provisions for natural ventilation. 

12. Gas pipes in buildings should be located at places convenient for servicing, 

inspection and repair. It is not allowed to lay gas pipes at places where there are 

chances of damage due to shop transport. 

13. For gas lines installed in hot zone, it is recommended to provide protection 

against overheating of gas pipes. 

14. It is allowed to fasten gas pipes to frames of furnaces, boilers and other units 

provided these frames are checked for strength by calculations. 

15. Gas pipes are not allowed to pass through buildings producing or having 

materials liable to explode or burn and building of power distributing devices and 

substations and ventilation chambers and through buildings, in which gas pipe 

may be damaged by intensive corrosion. 

16. Gas pipes should not cross ventilation doors, air exhauster, flue pipes and also 

gas pipes should not be installed in insufficiently ventilated space and in 

underground buildings. 

17. Installation of high pressure gas pipes below main working platforms of shops is 

not permitted. 

18. Gas pipes along bridges should be made of seamless pipe and laid in the open 

at a horizontal distance of one metre from ends of pavements for passing of 

people and it should be within reach for servicing. Supporting elements of the 

bridge should be accordingly checked for loads from gas pipes. Laying of gas 

pipes in channels of bridges is not allowed. All welding joints of gas pipes in the 

area of their attachment to bridge should be radiographed. 

19. Gas pipes passing through walls, ceilings, and other structures of buildings of 

construction shall be encased in a steel pipe having inside dia at least 50 mm 

more than that of the oxygen pipe. The Gas pipe shall have no joints in the 

section at such crossings. The gap between the gas pipe and the outer pipe 

shall be filled with non/inflammable material, but allowing vertical and horizontal 

movement. 

20. The laying of moist fuel gas pipelines shall be as per IPPS: 1-06-014-95 

21 Pressure pipe work for gases and liquid fuels generally shall be routed 

overhead. All overhead interplant pipe work to be routed such that they will have 

a minimum clearance of 6.0m between bottom of supporting structures / pipes 

and road / railway track. The pipelines laid over hot tracks shall have a minimum 

clearance of 10.0m. In case, protective shields are used in these places, this 

clearance may be reduced to 6.0m. Buried pipes, wherever laid, shall be 

provided with a minimum earth covering of 1200mm in areas subject to 



GS-02




temporary loads and minimum earth covering of 1000mm in areas not subject to 

temporary loads, unless otherwise specified. 

22. For the pipelines laid on roof, the distance from the external edge of the pipe to 

the roof shall be at least 0.5m. 

23. All shop headers, except for gravity fluids, shall be generally routed along 

columns in multiple rows at a height 4 to 6m above floor level. The connections 

to equipment shall be taken through suitable covered floor trenches for shops at 

ground floor and for basements, for elevated operating floors, the equipment 

pipe work connection may be taken below the floor level. All isolated single pipe 

connections to equipment shall be buried in the flooring / equipment foundations. 

Pipe work from basement and oil cellars to main equipment shall be routed in 

pipe tunnels / trenches with adequate spacing for easy maintenance. All pipe 

trenches shall be covered by chequered plate or by concrete slabs. 

24. The bleeder pipes for purging lines and other exhaust pipe work shall be routed 

upward along columns / gable ends and / or walls to a minimum height of 

4,000mm above the roof level / platforms. 

25. For the gas pipelines laid along the building walls, the clearance between the 

gas pipelines and the wall shall be adopted so as to ensure the possibility for 

maintenance of the gas pipelines. The gas pipelines laid on the walls must not 

cross the window and door openings. 

26. Branch pipes from the headers to the building through walls and the roof shall be 

encased. 

27. Gas pipelines shall be earthed. When laid under the high voltage lines, a 

protective sheet guarding shall be provided above the gas pipelines. The 

guarding shall be earthed. The earthing resistance must be not over 10 ohm. 

28. Platforms, access ladders, hand railing, etc. shall be provided for operation and 

maintenance of valves, instruments and controls. Manholes and hatches shall be 

provided for access inside the gas pipelines. 

29. At all the places of regular maintenance (gate valves, throttle valves, orifice 

plates, hatches, manholes, bleeders, etc.) if located at a height of over 2.5m 

from the maintenance level, provision shall be made for stationary platforms with 

the railings and stairs / ladders. 

30. To ensure the condensate drainage, the gas pipelines shall be laid with a 

gradient of about 0.005 towards the water drains. 

Condensate drains shall be equipped with bleeders. 

Necessary water pipe work for condensate seal pot shall be provided. 

31. Flash back arrestors shall be provided in each section of the pipe work for 

acetylene and LP gas to prevent flame propagation or pressure surges. They 

may be of hydraulic / cartridge type flash back arrestors or back pressure valves. 

32. All branch pipes from main header shall be connected through a hydraulic 

arrestor. 



GS-02




33. Shut-off globe valves shall be provided on both the inlet and outlet sides of the 

arrestor and unions shall be provided for repair or replacement, if required. 

34. Oxygen pipelines may be laid on either side of the fuel gas line as per the 

following norms. 

Oxygen Pressure in 

Kg/cm 2 

Diameter of Oxygen 

pipe mm 



Permissible gap in 

mm 

Upto 0.1 Upto DN 500 300 

Upto 0.1 Above 500 600 

0.1 to 16 Upto 500 800 

16 to 35 Upto 200 800 

Continuous installation is not allowed if the oxygen pressure is more than 16 Kg/cm 2 and 

diameter of pipe is more than 200mm and also if the oxygen pressure is more than 35 

Kg/cm 2 for any size. 

Minimum clearances of overhead oxygen pipelines (surface to surface) 

02.03. DESIGN PARAMETERS 

i) Explosion Hazardous shops : 3 meters clearance 

ii) Railway tracks : 3 meters 

iii) Railway bridge and platform : 3 meters 

iv) Roads : 1.5 meters upto 

embankment 

v) High voltage Transmission lines 

A. Parallel to pipelines : 10 meters 

B. Crossing the pipelines upto 20kv : 3meters 

35 to 150kv 220kv : 4 meters 

vi) To place of hot metal tapping and 

Source of open fire : 10 meters 

vii) Insulated L.T cables : 0.5 meters 

Bare conductor L.T : 1.0 meters. 

Design pressure for various categories of piping shall be as follows : 

Low Pressure Fuel gas piping : 1.25 Times Maximum Operating 

Pressure 

( Up to 1500 mm WC MOP) : But not less than 2000 mmWC 

All other gas piping : 1.25 Times Maximum Operating 

Pressure 

Steam piping : 1.5 times Maximum Operating 

Pressure. 

Design temperature for all fluids shall be maximum working temperature of fluid. In case 

of ambient temperature, design temperature may be taken as 60 deg C for piping 

exposed to sun and 45 deg C for indoor piping. 

GS-02




Flow rate for design purpose shall be taken as peak flow rate for the respective section. 

In case of branches to individual consumers, peak flow rate for the consumers shall be 

considered. For common branches and main headers, peak flow rate based on 

consumption pattern/ diversity factor may be used for pipe sizing. 

Future augmentation of flow rate for common piping shall also be taken into 

consideration for pipe sizing. 

02.04. SELECTION OF PIPE SIZE 

• Pipelines shall be sized by limiting the gas velocity in the pipeline as per Table 

02-01. 

• Peak flow rate based on the distribution pattern shall be considered for sizing of 

pipes. 

• Sizing shall be based on actual flow rate at worst combination of parameters i.e. 

lowest pressure and highest temperature. 

• In case recommended velocity is dependant on diameter range, after initial 

sizing, velocity should be re-checked and if required size should be recalculated. 

• Nearest higher standard pipe size shall be selected after calculation. 

For critical applications, pipe sizes should be re-checked after pressure drop calculations 

and availability of required pressure at consumer point. If required pipe size may be 

increased to meet the pressure drop criteria. 

RECOMMENDED VELOCITIES IN CARBON STEEL PIPES 

A : Low Pressure Fuel Gases 

Sl. 

No 

Nominal Pipe 

Dia – (mm) 

Gas Velocity, m/sec (maximum) 

CO Gas, Mixed BF & 

BF & BOF Gas 

Natural Gas Corex Gas 

1 20 – 80 2 2 2 

2 100 - 250 3 - 4 4 – 5 4 –5 

3 300 – 500 5 - 6 6 – 7 5 – 7 

4 600 – 800 6 – 7 7 – 8 7 - 8 

5 900 – 1200 8 - 10 9 – 12 8 – 11 

6 1300 – 2000 11 - 18 13 – 20 12 – 19 

7 > 2000 20 - 25 23 - 28 21 - 27 

B : Medium Pressure & High Pressure Gases 



TABLE 02-01 

Remarks 

Medium 

Pressure Range 

(kgf/cm 2 g) 

Gas Velocity, m/sec 

(maximum) 

Remarks 

Nitrogen, Argon, 

Up to 6 8 –10 See Note 1 

Compressed Air, 

6 - 16 12 – 16 

Instrument Air 16 - 40 Up to 20 

Oxygen 

Up to 16 12 See Note 2 

16 - 40 8 

LPG Up to 3 8 

Acetylene Up to 1.2 8 Up to DN 25 

Liquid Fuels All Pressures 1.5 

GS-02



C : FOR STEAM 


Sl. 

No 

Fluid Condition 

Average Velocity, m/sec 

Up to DN 50 to DN 200mm 

DN 50mm DN 150mm and above 

1 SATURATED AT SUB- 

ATMOSPHERIC 

PRESSURE 

- 10 – 15 15 – 20 

2 SATURATED AT 1 TO 7 

Kgf/cm 2 (g) 

15 – 22 20 – 33 25 – 43 

3 SATURATED ABOVE 7 

Kgf/cm 2 (g) 

15 – 25 20 – 35 30 – 50 

4 SUPERHEATED UPTO 7 

Kgf/cm 2 (g) 

20 – 30 25 – 40 30 – 50 

5 SUPERHEATED ABOVE 

7 TO 35 Kgf/cm 2 (g) 

20 - 33 28 – 43 35 - 55 



Remarks 

Steam piping network comes under the purview of IBR and thickness calculation shall be 

carried-out as per stipulations indicated in IBR and approval of CIB shall be obtained. 

02.05. EXPANSION AND FLEXIBILITY. 

All Pipe work shall be designed to provide sufficient flexibility against thermal expansion 

to prevent development of undesirable forces and moments at points of connection to 

equipment, at anchorage or at guide points. 

As far as possible, flexibility shall be provided by planning route with change of direction 

or by the use of bends, loops or off-sets. 

Whenever self-compensation can not be achieved by pipe routing, provision for thermal 

expansion shall be made by providing expansion loops or expansion joints as per 

following criteria: 

• U loops shall be provided for all low pressure fuel gas piping up to DN 300 size 

and high pressure piping for all sizes. 

• For high pressure piping, where U-loop is not possible, bellow type expansion 

joint shall be provided. Bellow type compensators shall also be provided in low 

pressure gas lines. 

While locating the expansion joints following guidelines should be followed: 

• Bellow compensators should be located preferably in the center of two fixed 

points. 

• U-Compensators should be located in between two fixed points with variation in 

pipe lengths in the ratio of 1:2 (max). 

• Gland Compensators should be located near the fixed supports to facilitate 

smooth functioning. 

• Bellow and gland compensators shall have flanged connection with pipes 

GS-02



U-loop Compensator 


U-loops shall be provided in piping system using elbows/ bends as per piping material 

specification. 

U-loops shall be in horizontal plane and loops for many pipes running in parallel may be 

provided at same location parallel to each other. 

Loops shall be in the same plane as the pipe route. However, in some cases, where 

there may be obstruction due to other parallel pipes, U-loop plane may be raised to clear 

the pipes by providing bends. 

Loops in vertical plane can be provided in exceptional cases if horizontal loop is not 

possible due to layout considerations. Provision shall be made in piping for draining of 

condensate, venting, etc. 

Bellow Compensator 

Bellow type expansion joints shall be made from SS sheet and can be single or multi 

layer with number of convolutions. 

Loads due to Compensators 

Loads on anchor points due to bellow compensators shall be considered based on the 

feed back from supplier / manufacturer. 

02.06. VALVES AND MEASURING DEVICES 

Valves shall be provided on pipe work for isolation of pipe sections and equipment, 

control of pressure, flow and level of fluids, venting, draining, pressure relief, etc. They 

shall be suitable for the service conditions in all respects and located suitably 

considering ease of operation and maintenance. Generally the following practice shall be 

followed; 

- Stop valves : 

On all pipelines both at the sources and consumers also in the branch pipes to 

individual buildings and shops with a nominal diameter of 100 mm and above (if 

required, for smaller diameter as well). 

- Isolating and by-pass valves for flow meters, filters, etc. 

- Check valve on all pipelines requiring unidirectional flow. 

- Quick action safety shut-off valve on fuel oil, gas/ air lines to furnaces and 

heaters as well as before each consumer or group of consumers. 

- Pressure regulating valves with isolating, by-pass and relief valves for all 

pressure reducing installations. 

- Manual drain valves at low points and manual vent valves at all high points of 

pipe work. 

- Regulating valves with integral pressure gauge for all oxygen outlet points, fuel 

gas outlet, etc. 

- All valves shall be provided with the operating handle/ lever/ wrench within easy 

reach. Where necessary, operating platforms shall be provided. Valves located 

in inaccessible locations such as basements, tunnels, etc. Shall have remote 

actuation by means of electric motors, solenoids, etc. 



GS-02




- For fluid lines with working pressures over 16 atg, valves of diameter 300 mm 

and above shall be provided with by-pass arrangement, unless otherwise 

specified in technical specifications. 

- Shut-off valves of dia 500 mm and above as well as shut-off valves of all 

diameter with remote or automatic control shall be provided with electric drives. 

- To facilitate operation of manually operated valves, adequate gearing and 

handling arrangement shall be provided, wherever necessary 

- All gas branch pipes from the in shop collector to the consumers shall be 

provided with bleed valve arrangement comprising two gate valves in succession 

with a bleeder in between. After the second gate valve (upstream), a provision 

shall be made for installation of a blank flange. 

- Shop pipe work for all production and ancillary units shall have metering of flow 

and pressure at the battery limits. 

- Sectionalising of pipe work for fuel gases such as coke oven gas, blast furnace 

gas, mixed gas and converter gas will be provided to facilitate maintenance 

work. This may be achieved by water seals, goggle valves, spectacle blinds or 

patented gas tight isolators. 

02.07. CONDENSATE DISPOSAL 

Fuel gases as well as other gasses contain moisture and other condensable impurities 

which get separated during fluid transportation through piping system, effective 

condensate removal system should be incorporated to prevent accumulation of 

condensate in pipes which otherwise may cause obstruction to proper gas flow and 

excess live load to the pipe/ structure. 

All piping for gasses containing moisture etc. like BF / Coke oven / BOF gas, Mixed gas, 

Compressed air, Steam & Natural gas are laid with gradient / slope. A slope of 5mm per 

meter run shall be provided for the above pipelines. In case of space constraint to 

accommodate slope, it may be reduced to 0.003 particularly for in shop piping. For 

straight length of pipeline, low / high points should be located generally at a distance 100 

meters. However, in no case it should exceed 300 meters. 

Condensate drain points shall be provided at all low points. In case of low pressure gas 

lines, automatic drainage system though seal pots shall be provided. 

For compressed air lines and steam lines, automatic condensate / steam traps shall be 

provided. 

Condensate Drain Arrangement for Low Pressure Gases 

i) Drainage shall be provided at all the low points of gas pipes carrying moist 

gases for condensate removal. Disposal of condensate shall be through seal 

pots/ condensate drain installations. 

ii) Distance between any two drain points of a gas pipe within a radius of 100 

meters from gas cleaning plant should not exceed 60 meters. 

iii) Drainage system for outdoor gas networks should be located in open air with 

necessary accessibility for operation. 

iv) Pipes for condensate removal from inter shop gas pipes of blast furnace gas in a 

radius of 400 m from gas cleaning plant should be at least 80 mm diameter. For 

pipelines beyond 400 m and also for gas pipes for other moist gases, diameter 

of condensate removal pipes should not be less than 50 mm. 



GS-02




v) Separate seal pots shall be provided for different gasses. 

vi) Removal of condensate from branch line from inter shop gas pipe and inshop 

gas pipe should be carried out in separate condensate seal pots. 

vii) Minimum height of the water seal in the condensate seal pot shall exceed the 

maximum working pressure of gas by 500 mm, but this height in no case shall 

be lower than 2000 mm. 

If necessary, the height of water seal can be increased by adding more than one 

seal pot in series. However, number of such seal pots shall not exceed three. 

Further base plate of seal pot shall have minimum thickness of 16 mm. 

While installing common seal pot for a number of gas pipe, height of water seal 

should exceed by 500 mm the maximum working pressure in any of the 

connected gas pipe. 

viii) Design of condensate seal pots should ensure protection against leakage of 

harmful gases into building by providing vent of adequate height on the seal pot. 

ix) Condensate seal pot shall be provided with purging facilities. 

x) Installation of condensate seal pot for in shop gas network is allowed inside the 

buildings. 

Condensate Drain Arrangement for Medium pressure High pressures gas 

i) Condensate disposal for gases having higher line pressure have to be done by 

using adequate pressure seal pots. 

ii) In a high pressure seal pot the metallic float is utilized for disposal of condensate 

and prevent leakage of gas from the pot. 

iii) The seal pot should be air tight and wall thickness should be decided on the line 

test pressure. 

iv) Condensate coming out of seal pot should be discharged into phenolic sewerage 

line or in a reservoir provided locally. 

02.08. STEAM TRAPS / MOISTURE TRAPS- 

At low points in steam & compressed air pipeline steam traps / moisture traps with 

strainer assembly will be provided to drain out the condensate. Selection of steam trap 

shall be as per IPSS: 1-06-039 – 02. Installation of steam traps shall be as per IPSS: 1- 

06-037 

02.09. PURGING SYSTEM 

System for feeding purge gas and venting of gas/ air from the piping system shall be 

provided for all fuel gas piping. 

Purging 

i) Gas pipelines of blast furnace gas, coke oven gas, converter gas and mixed gas 

shall be equipped with nitrogen or steam pipe connection with isolation valve. 

The connection of nitrogen or steam pipeline to the gas pipeline shall be done by 

means of flexible hose which shall be connected only during the period of 

purging. 



GS-02




ii) Location of purge gas inlet points and vents shall be such that entire section of 

piping can be purged with minimum dead space. Purging points shall be 

provided at low points. 

iii) Purging points shall not in any case be provided at bottom half of the gas mains. 

iv) Purge points for fuel gas pipes up to DN 950 mm shall be of minimum DN 25 

mm same for pipes of DN 1000 mm & above shall be of minimum DN 50 mm. 

02.10. BLEEDERS/ VENTS 

Bleeders shall be provided on all the gas handling devices and pipelines for purging and 

venting any section of the gas pipeline. The purging bleeders of pipelines carrying 

different fluids, separated by gate valves, are not allowed to be combined into one 

bleeders. The bleeders shall be taken above the gas pipeline or above roof of the 

building by at least 4 m, but not lower than 12 m from the ground level. Bleeders on shop 

roofs shall be located away from roof monitors. 

i) Bleeder/vents shall be provided for purging / venting any section of the pipeline. 

Bleeders shall be located generally at all high points in the piping system. 

Bleeder / vents shall also be provided at down stream / upstream of isolating 

devices & U-seals. 

ii) All vents shall discharge at a safe height into atmosphere. The vents shall be 

above the operating floor / platform for vent valve or roof of the building 4m, but 

not lower than 8 meters from the ground level. In the presence of the aeration 

monitors on the roof of the building, the vents shall be located so as to eliminate 

the possibility of purged gas getting inside the premises. 

iii) On straight lengths bleeder/vent shall generally be provided at an interval of 100 

meters. 

iv) All vents shall have T piece/cowl with bird screen preferably at the top. For 

isolation of bleeder/vent pipe flanged gate valve of rising stem type shall be 

provided. Sampling points (DN 25) below isolation valve with lubricated taper 

plug valve shall be provided in the line to monitor gas samples at the time of 

purging. 

v) Vent pipes of different gases shall not be connected through a common vent. 

vi) Recommended sizes of bleeder / vent pipes corresponding to gas pipe diameter 

are indicated in Table – 02.02. 

Table –02.02 

RECOMMENDED SIZES OF BLEEDER / VENT PIPES 

DN 

Bleeder pipe dia. DN (mm) 

(mm) Low Pressure Fuel gas Natural gas/Corex Gas 

20 - 20 

25 - 20 

40 - 20 

50 50 20 

65 50 20 

80 50 20 

100 50 20 

150 50 25 



GS-02




DN 

Bleeder pipe dia. DN (mm) 

(mm) Low Pressure Fuel gas Natural gas/Corex Gas 

200 50 25 

250 50 25 

300 50 25 

400 80 50 

500 80 50 

600 80 50 

700 100 80 

800 100 80 

900 100 80 

1000 150 100 

1100 150 100 

1200 150 100 

1300 150 150 

1400 150 150 

1500 200 150 

1600 200 - 

1800 200 - 

2000 250 - 

2200 250 - 

2400 250 - 

2500 250 - 

2800 250 - 

3000 250 - 

3200 300 - 

3500 300 - 

02.11. VALVES AND ISOLATING DEVICES 

Isolating devices shall be provided in piping system for isolation of pipe sections as well 

as for isolation of all other mounted accessories for the purpose of operation and 

maintenance. They shall be suitable for the service conditions in all respects and located 

suitably considering ease of operation and maintenance. 

Isolation valves shall be provided at the following locations: 

• On all pipe lines both at the source and at consumer ends 

• On all branch pipes to individual buildings and shops 

• On all bleeder / vent pipes, purge gas inlet points, drain points, sampling 

connections, etc. 

• On all by-pass lines for large valve, regulators, filters, moisture traps etc. 

• Instrumentation tapping points. 

Selection of Isolating devices: 

The gas cut-off arrangement shall ensure the possibility of complete cut-off gas along 

with fast and safe operation. Gate valves with rising stem shall be used normally for 

isolation in piping system. 

Pipe work for fuel gases such as Blast Furnace Gas, Coke Oven Gas, Converter Gas, 

Mixed Gas with low operating pressure shall have some means of gas tight isolation of 

sections of the pipe work to facilitate maintenance work. These may be water seals, 

goggle valves, spectacle blinds, or gas tight isolators / slide plate valves, etc. 

Necessary water pipe work shall be provided for water seal. 



GS-02




For sections where the gas tight isolating device can not be provided, provision to insert 

blind flange at outlet of gate valve shall be made. 

Sectionalizing / isolation for purging of fuel gas lines may be done with Spectacle blinds. 

Gas tight butterfly valves may be used for isolation near consumption points requiring 

frequent and quick operation. These can be valves with gas tight seating or eccentric 

valves for gas tight isolation. 

Emergency quick shut off valves shall also be double eccentric butterfly valves. 

For fluid lines with working pressure over 16 kg/cm2 (g), valves of DN 300 and above 

shall be provided with by-pass arrangement or depressurisation arrangement for pipe 

sections. 

Selection of Actuators for Isolating devices: 

Manually operated shut-off gate valves of size DN 300 to DN 450 for low pressure lines 

shall have gear drive. For high pressure lines, gear operator shall be provided as per 

manufacturer’s recommendations for limiting the operating torque to acceptable limits. 

Gate Valves of size DN 500 and above shall be provided with electric actuators. Electric 

actuators for fuel gas lines shall be of flame proof design if located in gas zone/in shop. 

In the interplant area these actuators need not be flame proof. Position and torque limit 

switches shall be provided on actuators. Manual over ride shall also be available in 

actuators. 

Goggle valves shall have electrical actuators for disc/ plate movement and electro 

hydraulic drive for flange separation. Manual arrangement for valve operation shall also 

be provided with gear and chain operation from convenient location. The hydraulic power 

pack for the valve shall include one motorized pump and one manual pump. Encased 

design goggle valve with vent shall be used at locations closed to buildings. 

Electrically operated gate valves for gas pipelines of smaller diameter are recommended 

to be used only if they are incorporated in the automation scheme. 

All valves located remotely, requiring frequent operation and / or with automatic control 

shall be provided with electric drives, electro- pneumatic drive, solenoids etc. 

Check valves shall be used in piping system where unidirectional flow is required. For 

small size pipes below DN 50, lift check valves shall be used. For DN 50 and above, 

swing check valves or dual plate check valve shall be used. Lift check valves shall be 

used only in horizontal pipeline. It should not be used in vertical pipeline. For low 

pressure gas lines dual plate check valve will be used. 

The Pressure Regulating valve shall be of globe / needle type, with material 

specifications, dimensional standards etc. as per the relevant Piping Material 

Specification (PMS) for the service for which the valve is intended. 

001 For Compressed Air 

Pressure regulators of sizes up to DN 50 shall be complete with a prefilter having 40 

micron porous bronze filtering element in shatterproof plastic or glass container, 

pressure regulator and pressure relief arrangement to prevent overpressure at 

downstream of the regulator. 



GS-02




For higher sizes to meet larger flow rates, the pressure regulator shall be self actuating 

type as per manufacturer’s standards, but capable of meeting the service conditions and 

duty specified. 

002 For Steam 

For sizes up to DN 50, pressure reducing valves of single seated diaphragm type having 

in-built strainer, with screwed ends up to DN 20 for PN 10 and below and flanged ends 

for higher sizes and for higher PN. Body of main and pilot valves shall be of carbon steel 

/ alloy steel castings / forging, diaphragms shall be of stainless steel, internal springs of 

stainless steel and pressure adjustment springs of spring steel. 

For higher sizes to meet larger flow rates, the pressure reducing valves shall be as per 

manufactures standards, but capable of meeting the service conditions and duty 

specified. 

003 For Other Gases 

For dry air, nitrogen and argon the pressure reducing valves shall be of stainless steel. 

For oxygen service, the valve shall be of bronze construction and shall be degreased and 

cleaned to meet the service requirements. 

For acetylene and LP gas services, the pressure regulators shall have material for the 

service. 

Pressure regulators for large diameter gas lines shall comprise butterfly type valves 

actuated by means of an oil hydraulic control system, which is actuated in turn by 

changes in the preset downstream pressure through impulse pipe work. 

Pressure Relief Valves 

These shall be spring loaded type and shall automatically open when the pressure on 

the pipelines, on which they are mounted, exceed preset values. The valves shall have 

end connections and materials specified for throttling valves in relevant PMS. 

Relief / Safety valves for steam service shall have IBR certification. Relief valves shall 

have hand wheel / wrench for adjustment of preset value of relief pressure. 

Pressure relief valves shall always be used on outlet lines from the pressure reducing 

valves. Pressure relief valves shall be designed for full flow rate from pressure 

regulators. Set pressure shall be 10 % higher than the maximum working pressure at 

outlet of regulator. 

Filters 

Filters will be installed in piping system before the pressure regulators/ control valves 

and at consumer points depending on nature of fluid and technological requirements. For 

small size pipes below DN 50, Y-type strainers with sintered/ wire mesh cartridge may be 

used. For higher sizes, straight line mounted filters with removable cartridge shall be 

used. 

Filter element can be of wire mesh, sintered material, woven fibers or other suitable type 

as per process requirement. Filtration area shall be at least 500% of the inlet cross 

section area. 



GS-02



Safety Shut-Off Valves 


These shall shut-off in case the pressure on the upstream side of the valve becomes 

less than preset values. The valves shall be of globe type for DN 50 and below and 

butterfly type for sizes above DN 50; the material shall be suitable for service conditions. 

The valves shall be actuated by electromagnetic or pneumatic device working in 

conjunction with pressure switches located on the pipelines being safeguarded and shall 

include all components required for its functioning. 

Electrical continuity 

Metallic electro static jumpers shall be provided at all locations on all flanged 

connections, in case of flammable gases and oxygen. This is to prevent accumulation of 

static electricity in pipe sections. Piping system shall be suitably earthed at a regular 

length of pipeline. 

Measuring and control devices 

Instrumentation and control devices shall be provided for monitoring the fluid distribution 

system, regulation of pressure and flow. 

Flow measurement shall be provided at battery limit of all production and consuming 

units, inlet/ outlet piping of storage installations, on surplus gas bleeder piping to flare 

system etc. When orifice plates are used, proper care shall be taken in piping layout for 

preventing accumulation of condensate by providing suitable slope or drain system. 

Requirement of straight length upstream and downstream of flow sensors shall be 

maintained as per instrumentation requirements. Normally the straight length 

recommended is 10 times pipe dia before inlet and 5 times pipe dia after outlet of device. 

Pressure measurement shall be provided at battery limits of production and consumer 

units, at outlet of storage systems, inlet and outlet of pressure regulators/ controllers, etc. 

Pressure and Flow Control valves shall be provided at gas mixing stations, main 

pressure regulating stations, flare stack piping, inlet/ outlet piping of storage installations 

(gas holders). For low pressure gas lines, butterfly type control valves shall be used. For 

high pressure gases, globe valves may be used. Sizing of control valves shall be based 

on flow rate and pressure parameters. 

02.12. HOSES & HOSE BOXES 

General purpose oxygen and propane shall be provided with necessary isolating valves, 

pressure control valves, Hoses & Hose boxes at each consumer points. Nipples along 

with quick coupling hoses shall be provided for steam, compressed air and Nitrogen for 

purging and other needs. 

02.13. SPECIAL CONSIDERATIONS FOR OXYGEN PIPING 

Filters should be installed in the oxygen pipeline system at the following points: 

a) At the outlet of the oxygen plant. 

b) Upstream of components having soft seating in contact with the oxygen stream e.g. 

pressure regulator and control valves. 

c) Upstream of components that have moving parts in contract with the oxygen stream e.g. 

flow measuring and limiting devices. 

Provision shall be made for safe and easy access for frequent cleaning and / or 

replacement of the filter element. The larger capacity filters like (a) above should be 

provided with differential pressure gauge for monitoring the condition and providing 



GS-02




indication for cleaning / replacement of the filter element. The filter bodies shall 

preferably be of copper alloy or stainless steel and filter element of copper alloy or glass 

cloth suitably earthed to the filter body with copper wires. 

Two (2) or more pressure relief valves should be provided downstream of each set of 

pressure reducing valves. One or more main relief valve(s) should be capable of 

discharging 100% of the full oxygen flow and limiting the pressure within the defined 

limits. The secondary relief valve should be sized to discharge the nominal leakage from 

the pressure reducing valves. The relief valves should be positioned as close as possible 

to the pressure reducing valves. The vent lines from the relief valves should be 

preferably of stainless steel or copper. 

Consideration should be given for providing small size pressure equalisation bypass 

isolation valves across large diameter isolation valves in large pipeline systems so as to 

ensure safe pressurization of the downstream pipeline. The bypass pipe work and valve 

should be of copper or copper alloy. 

Fire break sections may be installed in the oxygen pipeline to limit the propagation of 

combustion in a steel pipeline. Fire break sections may be introduced immediately 

downstream of the main isolation and throttling valves where the velocities can be high. 

The fire break section will be either a length of copper pipe having the same inside 

diameter as the main pipe with flanges fitted at the two ends which is installed between 

the steel pipes or a copper insert tube made from copper sheet / tube and inserted inside 

the steel pipe downstream of the valves. The copper insert tube is generally used in 

large diameter steel pipelines. 

In steel pipelines, care should be taken to install isolation valves on straight sections of 

the pipeline. Any pipeline component which is likely to cause a change in the flow 

pattern, like reducer, bend, tee or “Y” connection, orifice plate etc., should be at a 

distance of at least four diameters away from the valve. 

For cleaning of the gaseous oxygen pipelines after erection, provision for “pigging” will 

be provided for pipelines having diameters upto DN 200. However, if the pipeline is 

pickled and phosphated as per approved procedure, pigging of pipelines is not essential. 

The bends on these pipelines will have a radius of 5 DN. Extra care will be taken 

regarding cleanliness of large dia. pipeline (DN 250 and above) during installation. The 

bends for the larger dia. Pipes will have a radius of 3 DN. 

Gaseous oxygen pipe work shall preferably have butt welded pipe joints. To reduce 

safety hazards the number of components should be kept to a minimum compatible with 

the system requirements. Flange joints shall be used only for connection of the pipe to 

the system components on the pipe work. Threaded joints and couplings should be 

sparingly used. 

02.14. DESIGN CONSIDERATIONS 

Piping system shall be designed with high degree of reliability so that the systems 

perform the duty of fluid handling without structural or functional failure under most 

adverse condition of plant operation. All piping systems shall be designed with sufficient 

corrosion and stress margins to ensure a life time without failure, not less than the life of 

the plant. 7000 complete cycle of operation shall be considered for stress analysis 

purpose. Piping system shall not impose reactions on equipment terminals exceeding 

permissible limits even under adverse operating conditions. Personnel injury from 

discharge of hot fluids from drains, steam traps, hot pipes or exposures to pipe vibrations 

shall be guarded against. 

Piping coming under the purview of Indian Boiler Regulations (IBR) shall be 

designed in accordance with such regulations. The design criteria of piping coming 

under the purview of IBR shall have to be approved by "Chief Inspector of Boilers" 



GS-02




of the respective State prior to manufacture. All welding procedures, stress 

relieving procedures, inspection / testing / certificates and all other records shall 

have to be approved by Chief Inspector of Boilers in approved form. 

Pipes having nominal bore less than 15 mm, shall not be used. Design pressure of 

steam and all other service pipelines shall be considered as 1.2 times the 

maximum expected pressure. However it shall not be less than 4.0 kg/cm 2 gauge 

for steam services and 3.5 kg/cm 2 gauge for other services. 

Design temperature for steam services shall be as pr IBR and for other pipelines 

shall be 5 deg. above the maximum sustained service temperature expected. 

All the piping coming under the purview of IBR, shall be designed with the 

allowable design stresses as per IBR. For all other piping, the allowable design 

stress shall not be more than that specified in ANSI B 31.1 or BS:806 latest 

revision. Pipe thickness of all pipeline shall be taken as per the pipe thickness 

schedules. The design and stress analysis shall take into account the effect of 

internal/external pressures, thermal expansion, self weight of piping, support 

reactions, shock due to relieving devices, surge and water hammer, earth quake 

and wind effect, noise and vibrations, corrosion and erosion etc. and any other 

effects dictated by recommended engineering practices. 

Adequate flexibility shall be provided in the pipelines to keep stress and reactions 

in the system arising due to thermal expansion or other effects within limits. Where 

the piping terminates at an equipment or at the terminal point of a system, the 

reactions and thermal movement imposed by piping on the equipment or the 

system concerned shall be well within the limits specified. 

The flexibility analysis of steam, condensate and hot service media pipelines shall 

be furnished. 

01. Pipes shall be sized for minimum pressure drops and considering the velocity limitation 

for various types of fluids. 

02. Adequate flexibility shall be provided in the pipelines to keep stresses and reactions in 

the system arising due to thermal expansion or other effects within limits. Where the 

piping terminates at an equipment or at the terminal point of a system, the reactions and 

thermal movement imposed by piping on the equipment or the system concerned shall 

be well within the limits specified. 

03. If cold springing of pipeline is used, care shall be taken in determining the location and 

amount of cold spring gap. Cold spring gap shall be located at points where the bending 

and torsional moments are minimum. Use of cold spring gaps less than 10mm shall not 

be acceptable and cold spring gaps above 100mm shall be avoided. All outdoor piping 

exposed to sunlight carrying fluid at a temperature less than 80 0 C shall be designed 

considering thermal expansion corresponding to 80 0 C and empty pipe as one of the 

operating conditions although not necessarily the worst. 

04. All piping shall have butt welded connections with minimum of flanged joints for 

connection to vessels and equipment to facilitate erection and maintenance. All high 

pressure steam valves and accessories shall have welded connections. Standard fittings 

shall be used wherever practicable. Unless otherwise specified, for all welded lines with 

pressure above 4 kg/cm2 g and / or temperature above 200 0 C, branch connections with 

branch sizes upto 25% of welded mains shall be made with special forged steel welded 

fittings. 



GS-02




05. Bends for pipes for oxygen service shall have a radius of not less than three times the 

nominal pipe dia unless otherwise specified. 

06. In general pipes having size 50mm and above, shall be joined by butt welding and 40mm 

& below by socket welding / screwed connection. Threaded joints shall have to be seal 

welded except for galvanized pipes where teflon sealing tapes shall be used. For 

galvanized pipeline, pipe joints which are to be made before galvanising shall be of 

welding type. Those joints which are to be made after galvanising shall be either flanged 

or screwed type. As far as practicable, whole fabricated piping assemblies shall be 

galvanized at a time in order to minimize the number of joints to be made after 

galvanising. 

07. All pipelines shall be provided with drain connections, generally at the lowest point for 

removing accumulated condensate or water and line draining. The drain piping shall 

have drain pockets and isolation valves. Trap stations shall be provided where 

necessary. Lines shall be given proper slope towards the drain points. 

08 Piping coming under the purview of Indian Boiler Regulations (IBR) shall be designed in 

accordance with such regulations. The design criteria of piping coming under the purview 

of IBR shall have to be approved by "Chief Inspector of Boilers" of the respective State 

prior to manufacture. All welding procedures, stress relieving procedures, inspection / 

testing / certificates and all other records shall have to be approved by Chief Inspector of 

Boilers in approved form. 

09 Pipes having nominal bore less than 15 mm, shall not be used. Design pressure of steam 

and all other service pipelines shall be considered as 1.2 times the maximum expected 

pressure. However it shall not be less than 4.0 kg/cm 2 gauge for steam services and 3.5 

kg/cm 2 gauge for other services. Design temperature for steam services shall be as pr 

IBR and for other pipelines shall be 5 deg. above the maximum sustained service 

temperature expected. 

10 All the piping coming under the purview of IBR, shall be designed with the allowable 

design stresses as per IBR. For all other piping, the allowable design stress shall not be 

more than that specified in ANSI B 31.1 or BS:806 latest revision. Pipe thickness of all 

pipeline shall be taken as per the pipe thickness schedules. The design and stress 

analysis shall take into account the effect of internal/external pressures, thermal 

expansion, self weight of piping, support reactions, shock due to relieving devices, surge 

and water hammer, earth quake and wind effect, noise and vibrations, corrosion and 

erosion etc. and any other effects dictated by recommended engineering practices. 

11 Adequate flexibility shall be provided in the pipelines to keep stress and reactions in the 

system arising due to thermal expansion or other effects within limits. Where the piping 

terminates at an equipment or at the terminal point of a system, the reactions and 

thermal movement imposed by piping on the equipment or the system concerned shall 

be well within the limits specified. 

12 The flexibility analysis of steam, condensate and hot service media pipelines shall be 

furnished. 

02.15 PIPE SUPPORTS, ANCHORS, RESTRAINTS 

- In general pipe supports, restraints, braces or anchors shall be located at those 

points in the building or outdoor where provision has been made for the loads 

imposed. Loads at the supporting points or restraints shall be determined 

sufficiently early and provisions shall be made in the building or outdoor structures 

for pipe supports. The Tenderer shall locate, design, supply and erect all the 



GS-02




supplementary steel structures to properly secure and support all pipe hangers, 

supports, restraints, etc. 

- Provision shall be made for support of piping which may be disconnected during 

maintenance work. All large pipes and all long pipes shall have at least two 

supports each arranged in such a way that any length of piping or valve may be 

removed without any additional supports being required. 

- Supports, guides and anchors shall be so designed that excessive heat is not 

transmitted to the building steel. Supporting steel shall be of structural quality. 

Perforated, strap, wire or chain shall not be used. Support components shall be 

connected to support steel by welding, bolting or clamps. Bolt holes shall be drilled 

and not gas cut. Structural steel work for supporting shall be designed on the basis 

of a maximum design stress of 1265 kg/cm2. Pipe attachments coming in direct 

contact with pipes having surface temperature above 400 0 C shall be made of alloy 

steel. Use of insulating materials like asbestos between pipe clamp and pipe 

surface to meet the above temperature limitation shall not be permitted. The 

maximum spacing between two consecutive supports shall be not more than as 

specified. Pipe hangers and supports shall be capable of supporting the pipelines 

under all conditions of operation. They shall be capable of supporting the pipelines 

under all conditions of operation. They shall allow expansion and contraction 

without over stressing the piping system or overloading the terminal equipment due 

to variation in supporting effort. Rigid supports or hangers shall be permitted only 

for pipes with small movements. For hot lines, spring hangers shall be used. The 

maximum permissible load variation on the terminals of sensitive equipment 

between hot and cold conditions shall be limited to 6%. Variability in load between 

hot and cold conditions expressed as a percentage of the design load shall be 

taken as the criteria for spring selection for spring hangers. Variable spring hanger 

shall be set at cold conditions so that they take design load under operating 

condition after the designed thermal expansion has taken place. 

Spring shall be encased in suitable cages and the hangers shall be provided with 

spring locking arrangement, external load and movement indicator and turn buckles 

for load adjustment. All the rigid hangers shall be provided with turn buckles for 

vertical length adjustments. Hanger rods shall be subjected and designed for tensile 

loads. At locations of high axial or lateral movement, suitable arrangement shall be 

provided to permit the swing. The swing from vertical position shall be within 4 0 . 

Double nuts and locknuts shall be used for hanger rods and bolts in all cases. 

Hangers shall be designed so that they can not become disengaged by 

movements of supported pipe. 

- The supporting structures at each support points shall be designed for the highest 

of the following loads to take into account the extra load during hydraulic testing. 

- 1.25 times the maximum load under operating condition 

- Weight of pipelines full of water (combined weight of pipe, insulation, valve 

attachment etc. plus weight of water) 

- Weight of pipeline full of water as above plus any cold reaction as anticipated. 

- Where the piping system is subjected to shock loads such as thrust imposed by the 

actuation of safety valves, hanger design shall include provision of shock absorbing 



GS-02




devices of approved design. Vibration control devices shall be part of piping system 

design. 

- Outdoor piping shall be designed with due consideration to expansion resulting from 

exposure to sunlight and care shall be taken to prevent progressive movement of 

long pipelines. Outdoor piping may be supported on shoes, saddles or steel 

sections. Effect of support friction especially for large dia pipelines shall be 

considered and friction forces minimized by suitable arrangement. Piping inside the 

trenches shall be supported at intervals on steel sections and the arrangement shall 

permit easy maintenance. 

02.16 VALVES AND SPECIALTIES 

- All valves shall be of approved make and type. All valves shall be suitable for service 

condition i.e. flow, pressure and temperature under which they are required to 

operate. The valves for high and medium steam service shall have butt welded ends 

unless otherwise approved and the internal dia shall be same as that of the pipes to 

be joined. 

- All gate/ sluice, globe and needle valve shall be fitted with outside screwed spindles 

and bolted type glands and covers. Spindle glands shall be of the bridge type 

construction and screwed glands will not be accepted. All high pressure valves 

having nominal dia more than 150mm, shall have integral steam bypasses concede 

to the valve body by means of welded joints. 

- All gate/sluice, globe and needle valve shall be provided with hand wheel and 

position indicator. The face of each hand wheel shall be clearly marked with words 

“open” and “shut” with arrows to indicate the direction of rotation to which each 

refers. Arrangement limiting the travel of any valve in the “open” or “shut” position 

shall be provided exterior to the valve body. All globe valves shall be designed to 

prevent erosion of valve seats when the valves are operated partially opened. Valves 

which cannot be operated from the floor or walkways, shall be provided with suitable 

extension rods and linkages to facilitate operation from the floor or walkways. Chain 

operation will not be accepted for steam valves. Stems shall preferably be arranged 

vertically with gland at the top. In no circumstances must the gland be at the bottom. 

Valves shall not be installed in an inverted position. The design of valves shall be 

such that it will permit packing of glands under pressure. Where required, valve 

spindles shall be extended so that the hand wheel is at a height of about 1.0m above 

the level of the floor or platform from where the valves are to be operated. Where 

required, they shall be provided with head stocks and pedestals of rigid construction 

and where gears or bevel wheels are used, these shall be of cast steel or suitable 

grade cast iron with machine cut teeth. 

- Non return valves on all pumps discharges and steam line shall be of an approved 

non slamming type. Draining arrangement shall be made on both sides of the 

horizontal non-return valve where such a valve adjoins an isolating valve. Valve 

bodies shall be provided with removable access cover to enable the internal parts to 

be examined without removing the valves. Valves shall have a permanent “arrow” 

inscription on its body to indicate direction of flow. 

- Gate sluice valves for low pressure service shall be outside screw rising spindle 

type. For these valves wherever necessary, chain operator shall be provided to 

operate the valve from the floor or walkways. Larger size gate valves for low 

pressure applications shall be provided with bypass and draining arrangement and 

valves with dia more than 350mm shall be provided with gear operator. 



GS-02




- Valves in corrosive service shall be diaphragm or rubber lined type. Diaphragm shall 

be of reinforced rubber and rubber lining of body shall have minimum thickness of 

3mm. Generally plug valves shall be used in compressed air line. Plug valves shall 

be supplied with wrench operator. Valves shall be of taper plug type. 

- For motor operated valve, a 415V, 3 phase, 50Hz reversible speed motor shall be 

furnished. Motor shall be capable of producing not less than 1.5 times the required 

operator torque. Each operator shall be equipped with two adjustable limit and 

torque switch for both open and closed position. The motor shall be of high torque 

low starting current. Each operator shall be provided with auxiliary hand wheel for 

manual operation. The hand wheel shall automatically disengage when the operator 

is energized. 

- Manual operator shall be of worm and gear type, having permanently lubricated, 

totally enclosed gearing with hand wheel diameter and gear ratio designed to meet 

the required operating torque. The operator shall be designed to hold the disc in any 

intermediate position between full opened & full closed without creeping and 

fluttering. Adjustable stop shall be built into the operator to prevent over travel in 

either direction. Operator shall be equipped with direct coupled position indicator and 

suitable locking device. 

- Pressure reducing valves shall be perfectly stable, quiet and vibration less in 

operation when reducing the pressure for any throughput up to maximum and shall 

be suitable for continuous use at operating temperature. Valves shall be designed to 

prevent erosion of the valve seats. Safety valves shall be direct spring loaded type 

and shall have a tight, positive and precision closing. All the safety valves shall be 

provided with manual lifting lever. Valves used for compressible fluids shall be of pop 

type. Safety valve shall be so constructed and adjusted to permit the fluid to escape 

without increasing the pressure beyond 10% above the set blow off pressure. Valve 

shall reset at a pressure not less than 2.5% and more than 5% of the set pressure. 

- The seat and disc of safety valves shall be of suitable material to resist erosion. The 

seat of valves shall be fastened to the body of valve in such away that there is no 

possibility of seat lifting. 

02.17 FABRICATION AND INSTALLATION OF PIPE WORK 

- Pipe joints shall be assembled with the inside of all pipes and fittings smooth, clean 

and free from burrs, scale, welding slag, sand and dirt. The inside edges of pipe and 

tubing shall be reamed after cutting to remove burrs. Screw threads shall conform to 

ANSI B 2.1 for taper pipe threads. All the threaded joints shall be made up with a 

lubricant or compound suitable for the service under which the piping is to be used. 

- Welded joints shall conform to “Code for pressure piping ANSI B31 1.0 (power 

piping) or approved equivalent, except where the welding of such joints is covered by 

other code requirements such as IBR, ASME pressure vessel and boiler code or 

approved equivalent. 

- Branches shall, in general, be formed by welding standard fittings. Pipe bends and 

tees shall be truly cylindrical and of uniform sections. Where permitted for certain 

services, elbows or branch connections may be formed from steel pipe. Unless 

otherwise agreed, slip-on welding flanges shall be used on pipe and for connection 

to low pressure equipment. Weld neck flanges shall be used for butt welding fittings 

as elbows, tees and reducers and for connection to high pressure equipment. Where 

class 125 ANSI flanges are bolted to 150 ANSI steel fittings, the 1.5mm raised face 



GS-02




on the steel flange shall be removed. When bolting such flanges, a full face gasket 

shall be used. Equipment terminal flanges, if consist of a different standard, a 

suitable companion flange shall have to be provided at the connecting points. 

- Flange drilling shall straddle the natural centre line of pipe. Faces of all flanges shall 

be 90 0 to the longitudinal axis of the pipe to which they are attached. Slip-on flange 

when used, shall be welded in accordance with ANSI B31.1 or any other equivalent 

code. If distorted after welding, the flange shall be refaced. In all cases, flange faces, 

must be free from particles of weld metal. The flange face and the pipe projecting 

end shall then be machined to permit both pipe and flange to bear against. 

- All welding by the electric arc and gas welding process for pipe joints and fabrication 

shall be done by qualified welders and done according to appropriate IBR, ANSI 

code / regulations as applicable for welding, subject to accompanying code 

regulations and standards for filler metal, pressure, temperature and fluid carried. 

The ends of pipe and welding fittings shall be beveled according to the details shown 

in ANSI B31.1 or equivalent. All welds shall be made in such a manner that complete 

fusion and penetration are obtained without an excessive amount of filler metal 

beyond the root area. The reinforcement shall be applied in such a manner that it will 

have a smooth contour merging gradually with the surface of adjacent pipe and 

welded fittings. 

02.18 THERMAL INSULATION OF PIPELINES 

Thermal Insulation 

The tenderer shall furnish heat insulation for all necessary equipment and piping to 

efficiently prevent abnormal heat loss from all exposed parts to limit surface temperature 

within 60 deg.C. Resin bonded mineral wool/slag wool, fiber glass, asbestos ropes and 

preformed pipe sections, mats/mattresses form of insulation conforming to 

IS:8183/IS:9842/IS:7413 will be acceptable. However, the grades shall be selected 

considering respective temperature. In case of using loose insulation, proper care shall 

be taken at site to get recommended density. Packing density of the insulation wool shall 

be 150 kg/m3. 

Insulated surface of all equipment, piping, valves and fittings shall be covered with 

aluminium sheet of 22 SWG (0.8 mm thick) held in place by self tapping screws of nickel 

plated type. Apart from the screw, joints shall be further sealed with a suitable sealing 

compound. All fastening materials such as clips, wires for field weld to the equipment, 

galvanised wire mesh, metal corner bead shall be provided. Where valves, pipes fittings, 

flanges, etc. occur, a clear space between end of covering and flange shall be left of 

sufficient length, to permit withdrawal of flange bolts without interference. Ends of the 

covering at those joints shall be leveled from the outside covering to the pipe and sealed. 

Flanges, valves bonnet, end flanges and fittings shall be effectively insulated. 

Valve & flange insulation covers shall be made in two halves so that these may be 

removed/refitted readily without interfering with the adjacent covering. 

Protrusions through the insulation which themselves do not require insulation 

such as pipe clamps, supports, small piping, instrument take-offs, etc. shall be 

covered to the same thickness as the adjacent insulation and be tightly sealed 

except at hanger rods. Ample provision shall be made to prevent damage of 

insulation due to thermal movement of the pipe or equipment. All the services to 

be insulated shall be cleaned of all foreign materials such as scale, rust and paint 

by use of steel wire brushes and steel scrapers. Anti corrosion painting (primer 

coat) shall be applied on hot surfaces before application of insulation 



GS-02




Thickness of Insulation Table for Insulation thickness 

Pipe size 

(outside dia) 

Insulation thickness in mm for various temperature ranges 

Pipe size 

(outside dia) 

Upto DN 

50mm 

DN 65 to DN 

100mm 

DN 125 & 

DN 150mm 

100 0 C and 

below 

Between 

101 and 

200 0 C 

Between 

201 and 

300 0 C 



Between 

301 and 

400 0 C 

Between 

401 and 

500 0 C 

Above 

500 0 C 

25 50 50 75 100 100 

25 50 75 100 125 125 

50 75 75 100 125 150 

DN 200 mm 50 75 75 125 125 150 

DN 250 mm 50 75 100 125 150 150 

DN 300 mm 50 75 100 125 150 150 

Note: 

The metallic jacket over the insulation shall be galvanized steel sheet conforming to IS: 

277 with following thicknesses: 

- Pipe sizes up to 300 mm OD : 0.63 mm 

- Pipe sizes up to 300 mm OD 

equipment, flanges, valves : 0.80 mm 

02.19 LOAD CALCULATIONS AND FLEXIBILITY ANALYSIS 

Load Calculations 

Loads from the piping system are transferred to the pipe supports and connected 

equipment. Depending on the direction of application, loads shall be calculated under 

two major heads : 

• Vertical Loads 

• Horizontal Loads 

- Vertical load shall comprise of the following : 

Platforms 

Condensate collected in pipeline 

Dust deposition on pipeline 

Valves, compensators & fittings 

Supports, ladders, etc. 

- Live load on platform shall be taken as 500 kg/m 2 

- Platform shall be provided at the following locations : 

• Location of valves 

• Location of compensators 

GS-02




• Location of condensate drain installation 

• Water seals and tanks for water seals 

• Purging and vent connections 

• Manholes 

• Instruments 

Following norms shall be followed for calculating the condensate load of gas mains: 

Sl. 

No. 

Pipe Dia 

(mm) 

Height of filling of pipe 

cross-section with 

condensate (mm) 



Filling in cross – 

section (%) 

1. Upto 500 Full 100 

2. 600 – 1400 500 88 – 35 

3. 15oo and above 500 - 800 30 - 14 

Condensate drain installation shall be located at approximately every 100 m length of the 

pipeline. 

Load due to dust deposition shall be as follows: 

- 50 Kg per m 2 area on pipelines at a distance within 100 m from blast furnaces. 

- 25 Kg per sq metre area on pipelines at a distance between 100 to 500 from 

blast furnaces. 

Horizontal load along the axis of the pipeline shall comprise the following: 

- Load due to thermal expansion 

- Load due to internal gas pressure 

- Load due to friction (sliding of pipes on supports) 

Horizontal load transverse to the axis of the pipelines shall comprise the following: 

- Load due to wind pressure 

- Load due to component of gas pressure at branch connections 

- Load due to component of force arising from thermal expansion or at change of 

axis in plan. 

For calculating load due to thermal expansion the co-efficient of linear expansion for mild 

steel shall be taken as 0.012 mm/deg.c/ m. 

Internal gas pressure for coke oven and blast furnace gas shall be taken as 2000 

mmWC (g) (Test pressure for the gas pipeline). 

Co-efficient of friction for steel to steel shall be taken as follows: 

Sliding support : 0.30 

Roller support : 0.10 

Ball support : 0.10 

IS:875 shall be applicable for calculating the wind load on the stockades. 

IS:1873 shall be applicable for calculating seismic load. 

GS-02




- The pipeline stockades shall be designed to take all vertical (dead) as well as 

horizontal loads. 

- 20% extra load (vertical and horizontal) shall be considered for the design of 

structural and civil work to accommodate future pipeline on the stockades. 

Horizontal loads due to thermal expansion, internal pressure and friction shall be 

calculated by carrying out flexibility analysis on individual pipe. However, wherever 

possible, standard software package like CEASER-II may be used for carrying out 

flexibility analysis and calculations of loads transmitted to supports and nozzles of 

equipment to which piping is connected. 

02.20 LOCATION OF PIPE SUPPORTS 

Supports for pipes shall be provided based on pipe layout. The unsupported span of 

pipeline between two supports shall be calculated on the following basis; 

I) Maximum deflection in the span should not exceed 1/600 of length of the span. 

II) Maximum stress in pipe should not exceed the limit as per design codes. 

III) Maximum permissible spans are indicated below: 

Maximum permissible spacing between pipe supports 

Nominal Pipe size, 

mm 

Maximum span for 

Liquid service, m 



Maximum span for 

other services, m 

25 2.0 2.5 

40 2.5 3.0 

50 3.0 4.0 

65 3.5 4.0 

80 5.0 4.5 

100 5.0 4.5 

150 5.0 6.5 

200 6.0 7.0 

300 7.0 9.0 

500 - 13.5 

600 - 15 

1000 - 18 

1500 and above - 24 

In specific cases where span between two supports can not be provided as per the table, 

alternative arrangement for intermediate support using bridge between trestles or guy 

GS-02




rope supports may be considered. In exceptional cases where distance exceeds the 

limiting span, suitable stiffening of pipe section to prevent sagging may be considered. 

At sliding supports pipe saddle shall be allowed to rest on bearing plate for free 

movement. In case U-clamps are provided, clearance shall be maintained for pipe 

movement by providing two nuts on opposite sides. 

All intermediate supports shall be of sliding type. Anchor supports shall be located based 

on piping configuration and layout to provide adequate flexibility. 

Distance between two consecutive fixed supports in straight runs of pipe route should be 

approx 70 m. However, in special cases it may go up-to 100 m (max.). In no case it 

should exceed 100 m. 

However, for steam pipeline it should be limited to 60 m. For pipe dia. above 100 mm 

cold pull if any during erection may be given as per instructions of the respective 

drawings. 

To reduce friction force transmitted to supports, roller supports or anti friction pad 

supports can also be used. 

02.21 FLEXIBILITY ANALYSIS 

Piping arrangement shall provide for flexibility of lines to take care of the thermal 

expansion, contraction and equipment settlement. Large reactions or moments at 

equipment connections shall be avoided . Expansion computation shall be made on the 

basis of a base temperature of 21.1deg C (70 deg F) and shall cover ( +ve, or –ve ) 

design temperature(s) as given. 

i) Flexibility analysis shall meet the requirement of Code ASME B-31.3 (Latest 

Edition). Analysis shall consider stress intensification factors as per ASME 

B31.3. 

ii) Lines which shall be subjected to steam out conditions, shall be designed and 

analyzed at low –pressure steam design temperature of line whichever is more. 

Lines having negative design temperature shall be analyzed for both conditions 

separately. 

iii) Flexibility Analysis of lines shall be carried out using simplified methods or a 

comprehensive computer program. Comprehensive computer analysis shall be 

carried out for the piping for lines connected to equipment like vessels, pumps, 

filters, furnace, compressors or other strain sensitive equipment. The result of 

the analysis must satisfy the allowable loading on the nozzles of such 

equipment. 

iv) Piping shall be adequately supported for the weight of piping, water, attached 

unsupported components, wind, seismic, insulation and any other applicable 

forces. Care should be taken that these supports are adequate to prevent 

excessive stress, load or moments in either the piping or terminal nozzles of the 

equipment to which it is connected. Adequacy of supporting of lines having 

heavy valves shall be checked. The support shall be indicated in the piping 

General Arrangement Drawings and Isometrics as applicable. 

v) Safety valve manifolds and downstream of control valves shall be adequately 

supported to avoid vibrations. 



GS-02




vi) The following factors shall be considered in the stress analysis 

- Friction for lines >= 8” NB ; @ steel to steel = 0.3: ( Sliding friction), @ steel 

to Steel =0.1 (Rolling friction), 

- Corrosion Allowance. 

- Initial displacement of nozzles at design temperature(s). 

- Transverse deflections =25 mm( maximum) 

- Longitudinal expansion/contraction = 200 mm (maximum) Special care to be 

taken to check for expansion loops and shoe support lengths shall be 

finalized accordingly. 

vii) The following shall always be analyzed using comprehensive computer analysis: 

a) All lines 4” and above and Design Temp.> 300 deg. C. 

b) All lines 8” and above and Design Temp. > 150 deg. C. 

c) Al l lines 16” and above and Design Temp. > 80 deg. C. 

d) All lines 6” and above and Design Temp. > deg. 65 C that are connected 

to rotating Equipment, Air Coolers or any other sensitive equipment. 

e) Any other system/line that stress engineer feels necessary for stress 

check. 

The report shall comprise of the following: 

- Basic input data and calculated conditions. 

- Layout isometric and supports configuration. 

- Load cases and calculated member stresses. 

- Forces, moments and displacements reports. 

- Spring hangers design parameters. 

- Allowable Stress Range. 

Additional requirements ( reinforcement pad etc.) 

WIND LOAD CALCULATION 

Wind pressure shall be taken as per IS : 875. In cyclone prone areas maximum wind 

pressure due to cyclonic wind pressure shall be taken. 

In case of multiple pipes, for each tier of pipes, largest pipe may be considered for 

calculating wind load. 

02.22 PIPING MATERIAL SPECIFICATION 

SCOPE 

This PMS covers the various piping specification for process and utility piping in 

Metallurgical plants and its related industrial Installation. 

REFERRED CODES & STANDARDS 

All piping shall be designed in accordance with relevant latest codes and standards like 

B 31.1, B 31.3 and different IPSS (Inter plant standard for steel industry) 

Individual piping material specification has been designed to cover a set of services 

operating within fixed pressure and temperature. 



GS-02

PIPES 




Pipe dimension shall be in accordance with ANSI B36.10 : IS:1239, IS:3589 for carbon 

steel pipe and to B36.10/B36.19 for stainless steel pipe. 

Pipe made by acid Bessemer process shall not be acceptable. Pipes shall be made by 

open hearth, electric furnace or basic oxygen process. 

All pipe threads shall conform to ANSI B1.20.1 except where otherwise noted. 

FLANGES 

Flanges shall be in accordance with following codes except where otherwise noted. 

DN 15 to DN 600 (150 # - 600#) ANSI/ANSI B16.5 / IS : 6392 

Above DN 600 API 605 / ANSI B16.47 / MSS-SP-44/IS:6392/DIN etc. 

Flanges to MSS-SP-44 or any other std. like DIN, BS etc. may be specified to be made 

with equipment or valve flanges with corresponding bolting. 

Finish of steel flange faces shall conform to MSS-SP-6/ ASME B46.1/ASME B16.5. The 

interpretation shall be as follows : 

Serrated : 250 – 500 Mu in AARH 

Smooth (125 AARH) : 125 – 250 Mu in AARH 

For RTJ groves (32 AARH) : 32 – 250 Mu in AARH 

Bore of WN flanges shall match the ID of the attached pipe Bore of slip on flanges shall 

suit the pipe OD and its thickness. 

Dimensions of welded steel flanges for low pressure gas ( Pressure upto 1 kg/cm 2 ) is 

indicated in Table 06.01 

FITTINGS 

Forged steel socket welded and threaded fittings shall be in accordance with ANSI B 

16.11 unless otherwise noted. 

Butt welded fittings shall be in accordance with ANSI B16.9 unless otherwise noted. 

Fabricated (site/factory) fittings shall conform to IPSS-06-020-95 unless otherwise 

specified. Fittings thickness and tolerance shall match pipe thickness and tolerance. 

Mitres and reducers fabricated from pipe may be used if specified in PMS. Same shall 

conform to IPSS:1-06-020-95. In no case, thickness of mitres and material shall be 

inferior to parent pipe. 

GASKETS 

Non metallic gasket shall conform to IS:2712. 

Spiral wound gaskets (SPR, WND) shall conform to API 601/B16.20. 

Ring type and spiral wound gasket shall be self aligning type. 



GS-02



BOLTING 


Dimensional std of Bolt/studs and nuts shall conform to B 18.2 / IS:1364-1992 unless 

otherwise noted. 

THREADS 

Threads for threaded pipes, fitting, flanges and valves shall be in accordance with 

B1.20.1 taper threads unless otherwise noted. 

Upto 200 0 C threaded joints shall be made with 1” width PTEE joining tape. 

Above 200 0 C threaded joints shall be seal welded with full strength fillet weld. 

All threaded joints irrespective of pressure and temperature on lines carrying toxic fluid 

shall be seal welded with a full strength fillet weld. 

VALVES 

Face to Face/End to End dimension of valves shall conform to B16.10 to the extent 

covered. For valves not covered in B16.10. reference shall be made to BS2080 and / or 

the manufacturer’s drawings. 

Flange / weld ends of the valve shall be as per the corresponding Flange/Fitting ends of 

the piping class, unless otherwise specified. 

Pressure temperature rating for flanges and butt welding end valves shall be as per 

ANSI B16.34 except for ball, plug & butterfly valves. For these valves refer TABLE FOR 

PRESSURE TEMP. RATING FOR BALL, PLUG AND BUTTERFLY VALVES 

Unless called-out specifically, valves shall be as per the following Standards. 

Valve Size DN mm Rating Des. Std. Testing Std. 

Gate 15 - 40 800/1500 API-602 API-598 

Globe/Check 15 - 40 800/1500 BS – 5352 BS-6755 Pt-I 

Gate 50 - 600 150/300/600 API-600 API-598 

Gate 650 - 1050 150/300 BS-1414 BS-6755 Pt-I 

Globe 50 – 200 150/300/600 BS-1873 BS-6755 Pt-I 

Check 50 – 600 150/300/600 BS-1868 BS-6755 Pt-I 

Gate/Globe/Check 900/1500/2500# B-16.34 API-598/ 

BS6755 Pt-I 

Ball 15 – 400 BS-5351 BS-6755 

Plug 15 – 300 API-599 API-598 /BS- 

5353 

BS-6755 

Butterfly 80 & above - API-609/ 

BS5155 

AWWA C504 



API-1898/ 

BS-6755 Pt-I 

/AWWA 

Diaphram ALL - BS-5156 BS-6755 Pt-I 

GS-02




If not covered above, the valve shall be as per B16.34 and relevant MSS SP Standard 

DN 50mm and larger steel Gate, Globe & Check valves in Hydrocarbon and utility 

service shall have bolted bonnets. Pressure seal bonnets or covers shall be used for 

Class 900# and above to minimize bonnet leakage. However, valves with pressure seal 

bonnet shall have wall thickness & seal stem diameter as per API600. Welded bonnets 

or screwed & seal welded bonnets are acceptable for sizes lower than DN 50 for Class 

900# & above. 

PIPING MATERIAL SPECIFICATION 

SERVICE : BF Gas, CO Gas, BOF Gas, Corex gas & Mixed Gas 

SERVICE CONDITIONS : Maximum Working Pressure 1500mmWC Temp 60 o C 

Minimum Working Pressure 50 mmWC Temp 5 o C 

CORROSION ALLOWANCE : 2 m.m. 

Item Size Range Description Dimension Material 

Standard Specification 

Pipe DN 15 to 40 ERW, PE; Sch Heavy IS : 1239 part-1 IS:1239 - Black 

Fittings 

Flanges 

#150 

Gaskets 

DN 50 to 150 ERW, BE; Sch Heavy IS : 1239 part-1 IS:1239 - Black 

DN 200 to 350 ERW, BE; 6 mm Thk IS : 3589 IS: 3589 Gr.330 

DN 400 to 750 ERW/SWP,BE; 8 mm Thk IS : 3589 IS: 3589 Gr.330 

DN 800 to 3500 Fabricated – SWP, BE; 

10mm Thk. 

Plate shall have copper 

content of 0.25 to 0.35 % 

DN 15 to 40 SW /Screwed Fittings 

(Elbow R=1.5D) 



IS : 3589 IS : 2062, Gr.B 

IS : 1239 (P-2) 

DN 50 to 150 BW (Elbow R=1.5D) IS : 1239 (P-2) 

IS : 1239 (P-2) 

Black 

IS : 1239 (P-2) 

Black 

DN 200 & above Fabricated Miters bends & 

fittings from pipe / plate 

IPSS-06-20 IS : 2062, Gr.B 

Upto DN 150 SORF; Serrated Finish IS : 6392 

Table - 5 

IS: 2062, Gr.B 

DN 200 to 300 SORF; Serrated Finish IPSS:1-06-20 

Table 3 

IS: 2062, Gr.B 

DN 400 & above SORF; Serrated Finish IPSS:1-06-20 

Table 3 

IS: 2062, Gr.B 

Upto DN 500 Gasket: Thk. 2 mm Ring 

Type CAF 

As per Flange IS : 2712 Gr W/3 

Above DN 500 Asbestos rope graphite 

impingnated. 8mm 

GS-02




Item Size Range Description Dimension Material 

Standard Specification 

Valves DN 15 to 40 Gate valve; Screwed API 602 Body ASTM 

(Isolation) 

A105; Cr 13% 

Trim 

DN 50 to 550 Gate valve; Flanged ; IS : 14846 Body CI GR. FG 

DN 600 and 

above 

Rising stem 

Gate valve; Flanged; Rising 

stem 



200; SS trim 

Body IS-2062, 

Gr. B, SS trim 

Non-return DN 15 to 40 Check valve SW – Lift Type BS 5352 Body A105, 13% 

#800 

Cr Trim 

DN 50 and Check Valve Flanged swing BS 1868 / API CI IS–210 Gr. FG 

above 

check valve/ dual plate 594 

200 

#150 

IS:5312 part-1 

BS: 5153 

Throttling DN 15 to 40 Globe valve SW / Screwed BS 5352 Body A105, 13% 

; #800 

Cr Trim 

DN 50 to 300 Globe valve; Flanged ; BS 1873 Body CI, 13% Cr 

Serrated Finish; #150 

Trim 

DN 350 & above Butterfly valve WAF Type; BS 5155/ API 594 Body CI; 13% Cr 

#150 

Trim 

Sampling DN 15 / DN 25 Screwed and lubricated, BS: 5158 Body & PLUG : 

Tapered Plug valve 

CI IS 210 FG 200 

Bolting All 

Bolts IS: 1364- 1992 

Nuts IS: 1364- 1992 

Piping 

Fabrication 

Flanged Joints At valve/ equipment location and for sectionalising & Maintenance. 

To be kept minimum 

Pipes Joints Butt Welded 

Fabricated pipes Fillet welding using semi bandage on each segment. 

Temp 

Connections 

Pressure 

Tapping 

DN 40 – Flanged set-on nozzle 

DN 20 – SW Half Coupling Nipple Sch 80 with Gate valve to Spec. 

Vents On lines >= DN 50 ; MEC std. 

Drains On lines >= DN 80, MEC Std. 


SERVICE : LPG, Propane 

SERVICE CONDITIONS : Maximum Operating Pressure 10 kgf /cm2 Temp 60 o C 

Minimum Operating Pressure Atm Temp 5 o C 

CORROSION ALLOWANCE : 1.5 mm. 

GS-02

Pipe 




Item Size Range Description Dimensional/ 

Design 

Standard 



Material - 

Carbon Steel 

DN 15 to 40 Seamless PE Sch. 80 B 36.10 ASTM A106 GR.B, 

Seamless 

DN 50 to 150 Seamless BE Sch.40 B36.10 ASTM A106 GR.B, 

Seamless 

DN 200 to 300 Seamless BE Sch.20 B36.10 ASTM A106 GR.B, 

Seamless 

DN 350 Seamless BE Sch.10 B36.10 ASTM A106 GR.B, 

Seamless 

Fittings DN 15 to 40 SW / Screwed Fittings 

# 3000 (Elbow R=1.5D) 

ANSI B 16.11 ASTM A 105 

DN 50 to 150 BW Fittings #150 

(Elbow R=1.5D) 

ANSI B16.9 ASTM A234 Gr WPB 

DN 200 & above Miter bends & fittings 

fabricated from pipe 

IPSS-1-06-020 Same as parent pipe 

Flanges DN 15 to 40 SW:RF : Serrated Finish; 

#150 

B 16.5 ASTM A 105 

DN 50 & above SORF : Serrated Finish; 

#150 

B 16.5 ASTM A 105 

Gaskets All sizes Gasket : Thk. 2.0 mm Ring 

type CAF 

B 16.21 IS : 2712 Gr W/3 

Valves DN 15 to 40 Gate valve SW # 800 API 602 Body A105 ; 13% CR 

Trim 

DN 50 to 600 Gate valve Flanged RF API 600 Body A216 Gr. WCB 

Serrated Finish # 150 

13% Cr Trim 

DN 15 to 40 Globe valve, SW # 800 ANSI B 16.5 SRF Body A105; 13% Cr 

Trim 

DN 50 to 200 Globe valve : Flanged RF BS 1873 Body A216 Gr.WCB 

Serrated # 150 finish 

13% Cr Trim 

DN 15 to 40 Check valve SW # 800 Lift ANSI B 16.5 SRF Body A105; 13% Cr 

type 

Trim 

DN 50 to 600 Check valve flanged RF BS 1868 Body A216 Gr.WCB 

Serrated finish # 150 

13% Cr Trim 

Bolting 

Miscellan 

e-ous 

DN 15 to 150 Ball valve flanged RF 

Serrated finish #150 

All 

BS 5351 Body A216 Gr.WCB 

13% Cr. Trim 

Studs / Bolts B 18.2 ASTM A193 Gr B7 

Nuts B 18.2 ASTM A194 Gr 2H 

DN 15 to 40 TRAP #150, THRMDNMC MANF’ STD. BODY A105, TRIM 

13% CR , S: SS304 

DN 15 to 40 PERM. STR, SW, Y Type MANF’ STD. BODY A105: INT.SS 

304 

DN 50 to 350 PERM. STR, BW, T Type MANF’ STD. BODY A234WPB : 

INT SS 304 

DN 400 to 600 PERM. STR, BW, T Type MANF’ STD. BODY A234WPBW: 

INT SS 304 

Above DN 600 TEMP. STR, FF, CONE 

Type 

MEC’ STD. BODY A516GR. 70: 

INT SS 304 

GS-02





Design 

Standard 



Material - 


Piping Flanged Joints At valve/ equipment location and for sectionalizing & maintenance 

Fabricatio 


n Pipes 

DN 40 & below SW coupling 

Joints DN 50 & above Butt welded 

Pressure Tapping DN 20 – SW half coupling Nipple Sch 80 with Gate valve to spec. Gate 

Temp 

Connections 


Vents On lines




Item Size Range Description 

carbon steel plates with 

bore to suit pipe OD 

Dimensional/ 

Design 

Standard 

Valve 

Isolation 

Throttling 

Nonreturn 

DN 50 and below Cast steel lubricated taper 

plug valve, screwed similar 

to AUDCO fig MW-32 / plug 

valve 

DN 65 and above Cast steel lubricated taper 

plug valve, screwed similar 

to AUDCO flanged ends 

DN 50 and below Forged steel globe valve 

with regular type discs, SS 

rising spindle, Screwed 

ends 

DN 65 and above Cast steel globe valve with 

regulating type discs, SS 

renewable seat rings, 

outside screw with rising 

stem, flanged / globe valve 

DN 50 and below Forged steel check valve, 

body and cap material, 

screwed ends / forged steel 

check valve 

DN 65 and above Cast steel swing check 

valve with renewable seat 

rings, flanged generally, 

flanged / cast steel check 

valve. 

Filter Self cleaning filter operating 

on the principle of edge 

Hose 

assembly 

filtration 

DN 50 and below 15 m long hose with swivel 

SAE female coupling at 

both ends and adaptor at 



Material - 


IS:10459 IS:10459 

IS:23 IS:23 

IS:10605 IS:10605 

ASTM A105, ASTM 

A182, Gr. F6 

IS:10989 Body and cap: ASTM 

A 105, 

Trim material: ASTM 

A 182, Gr. F6 

IS:10989 

BS 5153 

IS: 635 IS: 635 

DN 65 and above 

one end 

Flanged ends IS: 635 IS: 635 


SERVICE : MEDIUM PRESSURE NITROGEN , 

ARGON, & COMPRESSED AIR 

IS:5312 (part1), BS 

5153 

SERVICE CONDITIONS : Maximum Operating Pressure 10.5 kgf /cm2 Temp 60 o C 

Minimum Operating Pressure Atm Temp 5 o C 

CORROSION ALLOWANCE : 1.5 m.m. 

GS-02




Item 

Pipe 

Size Range Description Dimensional/ 

Design 

Standard 

Fittings 

Flanges 



Material - 


DN 15 to 40 ERW, PE Sch. HEAVY IS:1239 – part-1 IS:1239 BLACK 

DN 50 to 150 ERW, BE Sch. HEAVY IS:1239 – part-1 IS:1239 BLACK 

DN 200 to 350 ERW, BE , THK 6.0mm IS:3589 IS:3589 GR.330 

DN 400 to 500 ERW, BE , THK 8.0mm IS:3589 IS:3589 GR.330 

DN 550 to 600 ERW BE Thk. 10.0mm IS:3589 IS:3589 GR.330 

DN 650 & ERW/ SAW, BE Thk. IS:3589 IS:3589 GR.330 

above 

10.0mm (min) 

DN 15 to 40 SW / Screwed Fittings 

# 3000 (Elbow R=1.5D) 

DN 50 to 150 BW Fittings #150 

(Elbow R=1.5D)) 

DN 200 & above Miter bends & fittings 

fabricated from pipe 

DN 15 to 40 SW:RF : Serrated Finish 

#150 

DN 50 and SORF : Serrated Finish 

above 

#150 



IPSS-1-06-020 Same as parent pipe 

B 16.5 ASTM A 105 

IS:6392 Table-11 IS:2062 Grade B 

Gaskets All sizes Gasket : Thk. 2.0 mm Ring 

type CAF 

B 16.21 IS : 2712 Gr W/3 

Valves DN 15 to 40 Gate valve SW # 800 API 602 Body ASTM A105 ; 

13% CR Trim 

Isolation 

DN 50 and 

above 

Gate valve Flanged RF 

Serrated Finish # 150 

API 600 Body ASTM A216 

Gr. WCB 13% Cr 

Trim 

DN 15 to 40 Globe valve, SW # 800 BS 5352 Body ASTM A105; 

Throttling 

13% Cr Trim 

DN 50 and Globe valve : Flanged RF BS 1873 Body A216 Gr.WCB 

above 


13% Cr Trim 

Non-Return DN 15 to 40 Check valve SW # 800 Lift BS 5352 Body ASTM A105; 

type 

13% Cr Trim 

Bolting 

Miscellaneous 

Piping 

Fabrication 

DN 50 and 

above 

Check valve flanged RF 


All Studs / Bolts 

Nuts 

BS 1868 Body ASTM A216 

Gr.WCB 13% Cr 

B 18.2 

B 18.2 

Trim 

ASTM A307 Gr B 

ASTM A563Gr B 

DN 15 to 40 TRAP #150, THRMDNMC MANF’ STD. BODY A105, TRIM 

13% CR , S: SS304 

DN 15 to 40 STRAINER, SW, Y Type MANF’ STD. BODY ASTM A105 : 

INT SS 304 

DN 50 and STRAINER, BW, T Type MANF’ STD. BODY A234WPB : 

above 

INT SS 304 

Flanged Joints At valve/ equipment location and for sectionalizing & maintenance 


Pipes 

Butt Welded 

Joints 

GS-02




Material - 


Standard 

DN 20 – SW half coupling Sch 80 Nipple with Gate valve to spec. 


Design 

Pressure 

Tapping 

Temp 

Connections 


Vents On lines





Design 

Standard 

DN 50 to 200 Globe valve : Flanged RF 



Material - 


BS 1873 Body A216 Gr.WCB 


13% Cr Trim 

Non- DN 15 to 40 Check valve SW # 800 lift BS 5352 Body A105; 13% Cr 

return 

type 

Trim 

DN 50 to 600 Check valve flanged RF BS 1868 Body A216 Gr.WCB 


13% Cr Trim 

Bolting All Studs /Bolts 

B 18.2 

ASTM A193 Gr B7 

Nuts 

B 18.2 

ASTM A194 Gr 2H 

Piping Flanged Joints At valve/ equipment location and for sectionalizing & maintenance 

Fabricatio 


n Pipes 

DN 40 & below SW coupling 

Joints DN 50 & above Butt welded 

Pressure Tapping DN 20 – SW half coupling Nipple Sch 80 with Gate valve to spec. 

Temp 

Connections 


Vents On lines





Design 

Standard 



Material - 


Throttling DN 15 to 40 Globe valve, SCRF; # 800 BS 5352 Body ASTM A105; 

13% Cr Trim 

Non- DN 15 to 40 Check valve SCRF; # 800 BS 5352 Body ASTM A105; 

return 

Lift type 

13% Cr Trim 

Bolting All 

M/C BOLT B 18.2 ASTM A307 Gr B 

(GALV) 

Nuts B 18.2 ASTM A563 Gr B, 

(GALV) 

Piping Flanged Joints 

Fabricatio 

n 

Pipes 

Joints 

Screwed Coupling 

Temp. Conn. Flanged Installation as MEC std. 

Pressure Tapping DN 20 – SW half coupling Nipple HEAVY with Gate valve to spec. 

Vents MEC std. 

Drains MEC std. 


SERVICE : LOW PRESSURE STEAM, MEDIUM PRESSURE STEAM, CONDENSATE & BOILER 

FEED WATER 


CORROSION ALLOWANCE : 1.5 m.m. 


Design 

Standard 

Pipe 

Pipe 

Fittings 

DN 15 To 500 Carbon steel seamless pipe 

with bevel ends 

Welded Fittings 

Bends 

Tees / 

Reducers 

Below DN 50 Bends fabricated from 

pipes by cold bending with 

3D radius and socket 

welded ends, 3000# 

Forged carbon steel elbow, 

3000# with socket welded 

ends. 

DN 50 to 500 Bends fabricated from 

pipes by cold/hot bending 

with 3D radius, 3000# 

Forged seamless carbon 

steel LR elbow with butt 

welded ends, 3000# 

Below DN 50 Forged carbon steel Tees / 

Reducers with socket 

welded ends 

Material - 


ANSI B 36.10 ASTM 106 GR.B or 

equivalent 


ANSI B 16.9 ASTM A234 Gr. WPB, 

Sch 40 

ANSI B 16.11 ASTMA 105 

GS-02





Design 

Standard 

Bolting 

DN 50 to 500 Forged seamless carbon 

steel Tees / Reducers with 

butt welded ends 



Material - 


ANSI B 16.9 ASTM A234 Gr. WPB, 

Sch 40 

All sizes Bolts / studs / Nuts Bolts / Studs ASTM 

A193 Gr B7. Nuts 

Gaskets All sizes Compressed Asbestos 

Gaskets for condensate 

and LP stream 

All sizes Spiral wound SS304 with 

CA filler for MP stream 

Flanges All sizes SO/ WN / Blank flanges RF 

125 AARH made from 

carbon steel plates / 

Forged carbon steel 

flanges 

Valves 

Isolation Below DN50 Forged carbon steel gate 

valve, Class 800/900 with 

rising stem and socket 

welded ends. 

DN50 and above Cast carbon steel gate 

valve, Class 150/300 (for 

MP steam) with rising stem 

and BW/ Flanged ends 

Throttling Below DN50 Forged carbon steel globe 

valve class 800/900 with 

rising stem and socket 

welded ends 

DN50 and above Cast carbon steel globe 

valve class 150 / 300 (for 

MP steam) with rising stem 

Non 

return 

and BW / Flanged ends 

Below DN50 Forged carbon steel swing 

check / piston lift valve 

class 800/900 with socket 

welded ends. 

DN50 and above Cast carbon steel swing 

check valve Class 150/300 

(for MP steam) with rising 

stem and BW / Flanged 

ends 

Strainer Strainer with cast steel 

body and brass strainers of 

16 G sheet with 1.25 mm 

diameter perforation @ 20 

per cm2 and SW / Flanged 

Hose 

assembly 

ends. 

Metallic hoses of 15 m 

length complete with 

screwed female swivel 

couplings at both the ends 

IS 2712 Gr W/3, 

1.5 mm thick 

ANSI B 16.5 

ANSI B 16.5 

ASTM A194 Gr. 2H 

IS 2002 Gr. 2A 

A105 / A 234 Gr. 

WPB 

API 602/BS 5352 Body / Bonnet to 

ASTM A105, Stem / 

trim SS to AISI 410 

(13% Cr) 

API 600 Body / Bonnet to 

ASTM A216 Gr. WCB, 

Stem / Trim SS to 

AISI 410 (13% Cr) 

BS 5352 Body / Bonnet to 

ASTM A105, Stem / 

trim SS to AISI 410 

(13% Cr) 

BS 1873/ API 600 Body / Bonnet to 

ASTM A216 Gr WCB, 

Stem / Trim SS to 

AISI 410 (13% Cr%) 

BS 1868 Body / Disc / Cover to 

ASTM A105, Internals 

/ Trim SS to AISI 410 

(13% Cr) 

BS 1868 Body / Disc / Cover to 

ASTM A216, Grade 

WCB Internals / Trim 

SS to AISI 410 (13% 

Manufacturer’s 

Standard 


Standard 

Cr) 

GS-02





Design 

Standard 

Steam 

trap 

Note: 

50 and below Thermodynamic steam trap 

with inbuilt strainer, Class 

800/900 and SW ends 


Standard 



Material - 


Body / Cap / Plug 

A743 Gr CA 40 

1. Class 150 for condensate and LP steam 

2. Class 300 for MP steam 

3. For feed water, schedule / thickness of pipe fittings and class ratings are to be selected by the 

tenderer based on pressure and temperature of feed water. 

SERVICE : MEDIUM PRESSURE OXYGEN 




Cleaning, Pickling, Passivation & Degreasing As Per IGC / IPSS code 


Design 

Standard 

Pipe 

Fire 

Breaker 

Fittings 

Material - 


DN 6 to 10 Seamless Tube Deoxidized non- 

Arsenic Copper or 

Aluminum 

DN 15 to 40 Seamless PE Sch. 80 B 36.10 

Carbon Steel, ASTM 

A106 GR.B 

DN 50 to 150 Seamless BE Sch.40 B36.10 ASTM A106 GR.B 



DN 50 to 150 Copper Pipe B36.10 Deoxidised non 

Arsenic Copper 



DN 15 to 40 SW Fittings 

# 3000 

DN 50 and above BW Fittings 



Flanges DN 15 to 40 SW:RF : Serrated Finish B 16.5 ASTM A 105 

DN 50 above WNRF : Serrated Finish B 16.5 ASTM A 105 

Gaskets All sizes PTFE LOX GRADE B16.21 

Valves 

DN 15 to 40 Ball valve class 800 for 

isolation purpose Flanged 

ends (class 300) 

BS 5351 Body A182 GR. 304; 

/BRONZE ;13% Cr 

Trim / BRONZE 

GS-02





Design 

Standard 

DN 50 and above Ball valve class 300 for 

isolation purpose Flanged 


DN 15 to 40 Globe valve class 800 for 

throttling purpose, flange 

end (class 300) 

DN 50 and above Globe valve class 300 for 

throttling purpose with 

flange end 

DN 15 to 40 Check valve class 800 with 

flanged end class 300 

DN 50 and above Check valve class 300 with 

flanged end 

DN 15 & Above Ball valve flanged RF 

Serrated finish 

SERVICE : HIGH PRESSURE OXYGEN 




Material - 


API 600 Body A351 GR. CF8; 


Trim / BRONZE 

BS 5352 Body : Bronze 

Trim: Bronze 

BS 1873 Body : Bronze 

Trim: Bronze 

BS 5352 Body A182 GR. 304; 


Trim / BRONZE 

BS 1868 Body A351 GR. CF8; 


Trim / BRONZE 

BS 5351 Body A351 GR.CF8 ; 

A182 GR. 304 

Trim;PTFE Seat 


Minimum Operating Pressure 16 kgf /cm2 Temp 5 o C 

RATING : # 300 

Matching Companion Flanges of Valves & flow components as per 

corresponding rating. 


Cleaning, Pickling, Passivation & Degreasing As Per IGC / IPSS code 


Design 

Pipe 

Standard 

Material - 


DN 6 to 10 Seamless tube Deoxidized non- 

Arsenic copper or 

Aluminum 

DN 15 to 40 Seamless PE Sch. 80 B 36.10 

Carbon Steel, ASTM 

A106 GR.B 



GS-02





Design 

Standard 

Fire 

Breaker 

Fittings 

Flanges 



Material - 







DN 15 to 40 SW Fittings 

# 3000 


DN 50 and above BW Fittings ANSI B16.9 ASTM A234 Gr WPB 

DN 15 to 40 

SW:RF : Serrated Finish; B 16.5 ASTM A 105 

DN 50 and above WNRF : Serrated Finish B 16.5 ASTM A 105 

Gaskets All sizes PTFE LOX GRADE B16.21 

Valves 

DN 15 to 40 Ball valve class 800 for 

isolation purpose flanged 


DN 50 and above Ball valve class 300 for 

isolation purpose flanged 


DN 15 to 40 Globe valve class 800 for 

throttling purpose, Flanged 


DN 50 and above Globe valve class 300 for 

throttling purpose, Flanged 


DN 15 to 40 Check valve class 800, with 

flanged ends (class 300) 

DN 50 and above Check valve class 300 with 

flanged ends 

BS 5351 Body A182 GR. 304; 


Trim / BRONZE 

API 600 Body A351 GR. CF8; 

/BRONZE ; Trim:13% 

Cr / BRONZE 

BS 5352 Body: Bronze 

Trim: Bronze 

BS 1873 Body: Bronze 

Trim: Bronze 

BS 5352 Body A182 GR. 304; 

/BRONZE ;trim 13% 

Cr / BRONZE 

BS 1868 Body A351 GR. CF8; 

/BRONZE ; Trim:13% 

Cr / BRONZE 

A) Erection of BF Gas, Cold Blast, Nitrogen, Instrument Air, Steam and LPG 

Pipelines 

01 General 

02 Before erection, the equipment, valves and other fittings to be mounted on 

pipelines/ equipment should be dismantled, (only if required), cleaned, oiled and 

reassembled. Glands shall be packed with suitable materials as per approved 

drawings. 

- All elements of the pipelines system shall be erected at site strictly as per the 

drawings approved by the / Consultant. 

- Any modification to be carried out at site, shall have the prior approval of / 

Consultant’s representatives. 

- While erecting, pipelines shall rest uniformly on each support. Yokes, if 

provided, shall not allow lateral movement of pipes. 

GS-02




- Matching faces of flanges shall be perpendicular to the axis of pipelines. Use of 

gaskets of unusual thickness to fill gap between flanges shall not be allowed. 

- For horizontal pipes, the flanges shall be erected such that top two bolt holes are 

displaced by half pitch from the vertical axis of the flange. 

- Flanges of adjoining pipes shall be located in staggered manner. 

- Flanged joints shall be laid as close to the support as possible. 

- Bends for steam pipes shall have a radius of not less than three 

times the nominal pipe dia unless otherwise specified. 

- In general pipes are to be joined by butt welding. However, steam service 

pipelines 40 mm & lower sizes shall be joined by socket welding. 

- For insulated pipe, steel protectors for the insulation shall be provided at 

points where the pipe is supported on rollers, slides or other equipment where 

contact with such members is required outside the insulation. 

- In case the location of spindle wheel of valves is not clearly shown in the 

erection drawings, the same shall be located in a manner as to facilitate easy 

operation from ground level of nearest operating platform. 

- For making pipe bends/ elbows at site using hot/ clod bending process, the 

decrease in the pipe thickness shall not be more than 15% of the pipe thickness. 

- After erection of pipelines, the holes made in the walls shall be covered with 

bricks & mortar. A gap of 10 to 20 mm shall be kept between wall and the pipe 

for the movement due to thermal expansion. The gap shall be filled with felt/ 

asbestos. 

- Holes made in the roof shall be covered with removable CGI sheets. 

- The trenches for pipes shall be covered with removable chequered plate covers/ 

concrete slabs as per the drawings. 

- All pipeline branches not connected to equipment shall be closed using blank 

flanges and gaskets. 

03 Welding of pipelines 

- All pipelines shall be joined by welding. Flanged joints shall be used for 

connecting the pipe with equipment, valve or fitting. 

- Electric arc welding shall be used for joining pipes, support, structures, etc. 

- All manufactured pipes shall be joined by butt welding. Large dia pipes, 

fabricated from sheets, shall be joined by fillet welding using semi- bandages 

attached to each section being joined. 

- Welding shall be done by qualified welders. Code of practice as per relevant 

Indian Standards shall be followed for the welding procedure, use of electrodes, 

etc. 

- Proper edge preparation and preheating of edges to be welded, whenever 

required, shall be ensured before welding. 

- After every 50 butt welded joints of gas pipeline, one test sample shall be welded 

by the same welder. Tensile teat and bend test shall be performed as per IS 

:814 to check the strength of welding. Four test samples shall be made from the 

test piece, two each for tensile and bend test. 



GS-02




- Tensile strength shall not be less than 34 kg / mm2 and elongation less than 12 

%. 

- Angle of bend at the appearance of first crack shall not be less than 70 deg. 

- Visual inspection shall be done for all welded joints to check for following 

possible defects : 

- Surface cracks on weld metal or parent metal. 

- Fusion or cuts at the joining of weld metal and parent metal. 

- Sponginess or porosity on the surface of weld. 

- Non-uniform thickness or distortion in case of fillet welds. 

- Deviation in the pipe axes or dimension of the joint. 

- All defective spots found shall be chipped off and re-welded. 

- For high pressure pipes, radiographic examination of welds shall be carried out 

as per IS : 2825. 

04 Link lengths and tolerances 

- Straight sections of gas pipelines shall be manufactured as separate links and 

joined at site by butt welding. 

- Link lengths for pipes shall be as follows : 

a) Up to 13 m : for pipes with dia 1400 mm or less. 

b) Up to 26 m : for pipes above 1400 mm dia. 

- Following tolerances are allowed : 

i) For length of links : 

a) +/- 3 mm for length up 1 m 

b) +/- 0.5 % for length more than 1 m, total deviation shall not exceed 10 mm for 

every 10 m or part thereof . 

ii) Deviation in the pipe axis from the straight line : 

Upto 0.12% of the link length but not more than 15mm for links with length more than 10 

m. Deviation shall be checked by stretched cord. 

iii) For distance between the contacting surfaces from the geometrical axis for bends, tees, 

crosses and other pipe fittings. 

+/- 3 mm for distance upto 500 mm . 

+/- 0.5% or 10 mm maximum for distance more than 1 m. 

However, for BF gas and CO gas pipelines, the tolerance shall be limited to +/- 1.5 mm 

only. 

iv) Deviation of pipe axes at the joining point from the diametral plane of pipes: 

2 mm, irrespective of link length. 

v) For distance between two adjacent connections on a pipe : 

+/- 2 mm for each length but not more than +/- 5 mm overall. 

vi) Distortion of the contacting surface of flange relative to the geometrical plane 

perpendicular to the pipe axis : 

0.004 times the outer diameter of the flange at the periphery. 



GS-02




vii) Tolerance for clearance between flanges and flange rings : 

Not more than 2 mm. 

05 Erection of valves and fittings 

- Before erection, the valves, cocks and other fittings, to be mounted on pipelines, 

shall be dismantled, cleaned, oiled and reassembled. Glands shall be packed 

with suitable materials as per approved drawings. 

- All moving parts of the pipe fittings should move freely without jamming. 

- Valves shall be tested hydraulically for leakage by applying pressure on up 

stream side with valve in closed position. 

- Bolts & nuts shall be cleaned and lightly oiled. 

- Proper grades of gaskets shall be used for erection as per approved drawings. 

Testing of BF Gas, Cold Blast, Nitrogen, Instrument Air, Steam and LPG pipelines 

- Preliminary acceptance test for erected pipelines shall be carried out as follows : 

a) Checking of metal marked as per manufacturer’s certificate/ approved drawings. 

b) Checking of test result of mechanical tests for welding/ radiographic tests. 

c) Visual examination of welds. 

d) Dimensional checks as per the approved erection drawings. 

e) Checking of welded joints by chalk kerosene test. 

- In case defects are found by visual examination, these shall be rectified prior to 

leakage test. 

- Checking of proper installation of supports, expansion joints, valves and fittings. 

- The pipeline shall be cleaned from inside, all debris removed and pipeline blown 

with air to remove all dirt, rust particles, etc. 

Strength and leakage test for BF gas, Cold Blast, Nitrogen, Instrument air, Steam and 

LPG pipelines : 

Test fluid for BF gas, Cold blast and LPG shall be air and for Nitrogen, Instrument air & 

Steam service pipelines, test fluid shall be water. 

All mounted equipment / instruments, control valves, etc. on pipelines shall be 

temporarily replaced by spool pieces. End connection near equipment connection shall 

be temporarily disconnected and blanked. 

For BF gas, test pressure equivalent to 1.25 times the maximum operating pressure but 

not less than 0.2 Kgf/cm 2 (g) shall be applied using air as per the certified 

drawings and instructions of OWNER/ MECON for ascertaining the strength. 

For cold blast, compressed air, nitrogen & LPG test pressure shall be 1.25 times the 

maximum working pressure. 

For steam service pipelines test pressure shall be 1.5 times the maximum working 

pressure. 

a) For BF gas, cold blast, compressed air, nitrogen & LPG pressure test shall be carried out 

by maintaining the test pressure indicated above for a minimum period of 1/2 hour. For 

steam pipes, the minimum duration shall also be 1/2 hour. 



GS-02




b) During pneumatic test, pressure shall be gradually reduced to 1.1 times the operating 

pressure to check the leakage by soap solution. Test duration shall be minimum 2 hours. 

c) Soap solution shall be applied to the weld surfaces / flanges to check for any leakage. 

d) Any defect found shall be rectified after releasing the test pressure and after rectification 

of defects the test shall be repeated. 

During pneumatic tests of all gas pipelines pressure and temperature readings shall be 

taken at the beginning and end of the test. The percentage pressure drop (P) shall be 

calculated as follows : 

P = 100 (1 - P2 / P1 X T1/ T2) 

Where P1 and P2 are absolute pressure in the pipe at the beginning and end of test and 

T1 and T2 are absolute temperature at the beginning and end of the test. 

e) The maximum allowable pressure drop in all gas pipelines shall not exceed 1.0 % per 

hour for outdoor pipelines during pneumatic test. For pipeline subjected to hydro test, no 

leakage is permissible 

1) High pressure pipelines shall be tested as follows : 

a) Pipe sections shall be disconnected from the equipment using blank flanges. 

b) Vents shall be provided at high points for air release during pipe filling. The vents shall 

be plugged with threaded nipples after the tests. 

c) Tests shall be carried out before painting of the pipelines and before application of 

insulation. 

d) Pipe upto 300 mm diameter shall be tested hydraulically for strength by applying test 

pressure equivalent to 1.25 times the operating pressure. Test pressure shall be 

maintained for 30 minutes and then gradually reduced to the operating pressure. For 

steam pipelines test pressure shall be 1.5 times the working pressure and duration 2 hrs. 

e) Leakage from welded joints shall be checked by tapping with light hammer. No sweating 

should occur on the weld surface. Test shall be considered satisfactory if no visible 

leakage is found and pressure in pipeline remains steady. 

f) In case hydraulic testing is not feasible, test shall be carried out by compressed air. 

Leakage from joints shall be checked by soap solution. 

g) Test for tightness shall be carried out using compressed air at the operating pressure, 

the test pressure shall be held for 12 hours. The percentage pressure drop calculated as 

per formula given in para ( g ) of previous clause shall not exceed. 

Commissioning of BF gas, Cold Blast, Nitrogen, Instrument Air, Steam and LPG 

pipelines 

Pipelines shall be commissioned only after successful completion of preliminary 

acceptance test, strength tests and leakage tests. 

All valves and regulating devices shall be checked for smooth & proper operation. 

All safety relief valves shall be checked and set at required pressure setting. 

All instruments, interlocks, etc., shall be checked. 

Charging of BF Gas & LPG 

Pipelines shall be commissioned only after successful completion of acceptance tests, 

strength tests and leakage tests. 



GS-02




001 Before charging the pipelines with fuel gas, the entire air from the pipeline shall be 

purged with nitrogen / Steam. 

002 Before purging, all valves shall be set at required position, drain pots filled with water, all 

hatches & manholes closed. All bleeders except the ones used for venting the purge 

gas, shall be closed. 

003 Discharge from the pipeline shall be through bleeder / vents only. The air / gas should 

not be discharged into the shop / furnace. 

004 Completion of purging shall be determined by taking samples from the bleeders. When 

the oxygen content of two successive samples is less than 1%, the purging shall be 

deemed to be completed. 

005 After purging is complete, the gas shall be gradually charged into the pipelines. The 

charging shall be done section wise gradually approaching the consumer end. 

- The gas shall be discharged through bleeders only. Exhaust gas from bleeders 

can be set on fire. 

- Completion of filling shall be determined by taking samples from the bleeders. In 

case oxygen content of two successive samples is less than 1 % the gas 

blowing shall be deemed to be complete. 

006 All activities of gas pipe purging and charging shall be co-ordinated in presence of 

OWNER/ MECON, safety personnel, fire tenders, etc. 

007 After charging the gas into the system, all isolating devices, instruments, controls, safety 

devices, condensate seal pots, etc. shall be again checked for proper operation. 

Charging of cold blast, nitrogen, Compressed Air 

008 After pressure test, the nitrogen and instrument quality compressed air line / cold blast 

line shall be purged with nitrogen and dry air respectively for removal of moisture, dirt , 

etc. from the piping system. 

009 Nitrogen, Instrument quality compressed air, cold blast shall be subsequently charged in 

the line by connecting with the existing network. 

Charging of Steam. 

010 After pressure test steam pipeline shall be depressurised and drained of water fully 

through drains/ by pass of steam traps. Subsequently, the pipeline shall be charged with 

steam slowly by crack opening the steam supply valve keeping all drain points open. 

011 When steam is observed from all drain points and consumer ends then steam valve at 

the inlet to the system should be fully opened and all by pass valve on drains closed and 

isolation valve on steam traps are kept open. 

B) Oxygen pipelines 

01 General 

- All work concerning oxygen pipeline system shall be done by persons of 

contractor well conversant with the oxygen service and having proven ability in 

the field. 

- All safety aspects with regards to selection of materials, erection procedure, 

degreasing, testing and commissioning procedures, cleanliness, etc. shall be 

kept in view by all personnel connected with the job. 

- Erection of pipes, fittings, instruments, etc. shall be done strictly as per the 

approved drawings. Any change proposed to be done at site shall have the 

approval of the Purchaser’s/ Consultant’s representatives. 



GS-02

02 Routing of oxygen pipes 




- Oxygen pipes can be laid along with other pipes on same stockades. Oxygen 

pipeline shall have independent support from the same stockade. 

- Clear distance of 300 mm shall be kept between oxygen pipe and any other 

pipe. 

- In-shop pipes can be laid along the wall and can be supported from building 

structures, crane girders etc. by independent brackets, hangers, etc. 

- Pipelines laid in trenches shall be covered with sand/ earth. 

- Oxygen pipeline shall not be laid in tunnel/ basements. In case, it is necessary to 

pass the pipeline through a tunnel, an encasing pipe shall be provided on 

oxygen line extending 1.0 m on both the ends of the tunnel. 

- A clearance of 500 mm shall be kept between oxygen pipe and electrical cables 

and in case of bare conductors, the clearance shall be 1000 mm. 

- Oxygen pipelines crossing the walls/ floors shall also have encasing pipe. The 

gap between the pipe and casing shall be filled with non-inflammable material 

allowing movement of the pipe. 

- Oxygen pipelines shall be effectively earthed, Jumpers of minimum 5 mm 

diameter shall be proved at all flanged joints. 

003 Materials 

- All materials supplied for erection shall have manufacturer’s test certificates 

including materials test and hydraulic test reports. 

004 Cleanliness 

- All steel pipes & fittings shall be pickled at the manufacture’s works or at site 

prior to degreasing. 

- In case, pickling is done at manufacturer’s work, the ends of pipes shall be 

sealed/ plugged, and then pipes packed and tagged ‘pickled for oxygen service’ 

before despatch. 

- Pickling shall be done using HCL of 20% concentration (w/ w). After pickling, 

pipes shall be washed with water, neutralised with 0.25% NaOH solution and 

again washed with water. 

- Before erection, the pipes & fittings shall be visually inspected for presence of 

scales/ foreign matter like fillings, flux, corrosion products, dirt, wood and metal 

chips, threading compounds, sealants, tar asphalt, moisture, paint, chalk, etc. 

- The pipe work shall be thoroughly cleaned to ensure removal of all foreign 

matter. 

- Presence of grease or oil shall also be checked visually. Inside surface of pipes 

shall be checked by passing clean white cotton piece. 

Hands, clothes and aprons of the workers doing erection job shall be clean and free of oil 

and grease. 

005 Degreasing 

- Before erection, all pipelines, fittings, valves, gaskets, packing material, 

instruments etc. shall be degreased using proper solvent like carbon 

tetrachloride or trichloroethylene. For initial degreasing detergent made by 

mixture of sodium hydroxide trisodium phosphate and calcium sodium silicate 

can be used. 

- The quality of the solvent used for degreasing shall be checked before its 

application. 



GS-02




- The parts to be degreased should be cleaned and dried by blowing air. 

- Outer surface of pipes is degreased by wiping with cloth dipped in solvent and 

then dried till smell of solvent disappears. 

- For degreasing inner surface of pipes, pipe shall be plugged at one end, filled 

with solvent and closed at the other end. Pipe shall be kept in horizontal position, 

rotated about axis at least once in a minute. After continuing the process for 

about 15 minutes, the solvent shall be drained and pipe blown with dry oil free 

air or nitrogen for at least 5 minutes. 

- Drying after degreasing can also be done in open air for at least 24 hours. 

- Vapour degreasing method can also be applied for pipes. 

- For degreasing of valves, fittings and other components, the same shall be 

dismantled and parts dipped in solvent for 5 to 10 minutes. After degreasing, the 

parts shall be dried in open air till smell of solvent is eliminated. 

- Gaskets and packing material shall be degreased by dipping in solvent for 1.5 to 

2 hours after which these shall be dried in open air for 24 hours. 

- Degreasing operation shall be done in open air. 

- The workers should use safety masks to prevent hazards due to inhaling of the 

solvent vapours. Solvent contact with skin shall also be avoided. 

- Safety aspects regarding handling of solvents shall be kept in mind during 

degreasing process. 

006 Erection 

007 Testing 

- Erection of oxygen pipelines shall be done as per approved drawings and 

general guidelines for erection of pipelines. 

- Gas welding or electric arc welding shall be used for erection of pipelines. 

Welding shall be done by qualified welders. 

- Qualifying tests for welding, welding procedures and quality control etc. shall be 

generally as per IS: 2825, ‘ code of Practice for Unfired pressure Vessels’. 

- Radiographic examination of 100% welds for oxygen pipelines with working 

pressure over 6 kgf/ cm 2 (g) and OD above 76 mm shall carried out. 

Interpretation of radiographs shall be done by a competent agency like Lloyds 

Register of Shipping. Proper identification marking for welds and their 

corresponding radiographs shall be carried out by the contractor. 

- For pipelines having working pressure below 6 kgf/ cm 2 (g), 40% welds shall be 

tested by radiography. 

- Cleanliness of personnel as well as tools and tackles shall be ensured. 

- All erected pipelines shall be tested for strength and leakage using dry and oil 

free air or nitrogen. 

- Before testing, the pipeline shall be degreased by vapour degreasing method. 

- After degreasing, the pipelines shall be blown with dry and oil free nitrogen. 

During blowing, velocity in the pipeline shall not be less than 20 m/ sec. 

- Blowing shall be done for a period of at least 1 hour to remove all particles of 

dust, scale etc. from the system. Cleanliness shall be checked by holding a 

piece of white paper at the air outlet. 



GS-02




- After blowing, the line shall be pressurized up to 1.25 times the maximum 

working pressure using air/ nitrogen. The test pressure shall be held for 30 

minutes during which the joints shall be lightly tapped with a wooden hammer of 

1.5 kg weight. 

- Pressure shall be gradually reduced to the operating pressure and all joints 

checked by soap solution for leakage. If any leakage is detected, line shall be 

depressurized and defect rectified. 

- Leakage test for the pipeline system shall be done at operating pressure for a 

period of 24 hours. During this period, pressure and temperature readings shall 

be taken at an interval of 1 hour. Duplicate gauge with least count of 0.1 kg/ cm2 

for pressure and 0.5 deg. C for temperature shall be used. 

- The percentage pressure drop (P) shall be calculated as follows : 

P = 100 (1 – P2/ P1= * T1/ T2 ) 

Where P1 and P2 are pressure in the pipe at the beginning and end of test and T1 and 

T2 are absolute temperatures at the beginning and end of the tests. 

- Leakage of air / nitrogen determined by above formula shall not exceed 0.2% 

per hour. 

- After satisfactory completion of leakage test, the pipeline shall be isolated and 

kept under pressure of 1.0 kg/ cm 2 till the line is commissioned. 

008 Commissioning 

009 Safety 

- Before charging the pipeline with oxygen, the line shall be blown with dry, oil free 

air/ nitrogen at a velocity of minimum 20 m/ s for a period of at least 8 hours. 

Cleanliness of outlet air shall be checked by holding a piece of white paper for 3 

to 5 minute at air outlet. If dust particles are found on the paper, blowing shall be 

continued till paper test shows negative results. 

- After completion of blowing, oxygen shall be introduced gradually increasing the 

oxygen percentage in the pipe. The velocity of oxygen flow shall be limited to 10 

m/ s till all air/ nitrogen is exhausted from the pipe. 

- Oxygen shall be vented through bleeders in open atmosphere at a safe place 

away from open flames/ fire. Minimum height of bleeder outlet shall be 2.5 m 

from ground/ platform level or shop roof. 

- After charging the line completely with oxygen, bleeder valves shall be closed 

and line may be put into service. 

- Testing, cleaning and commissioning of oxygen pipelines shall be carried-out 

only in the presence of and with the permission of senior engineers of the and 

the Consultant. 

- The safety department of the shall be informed and their concurrence taken on 

all matters related to cleaning, testing and commissioning of oxygen pipe lines. 

- All first aid and fire fighting facilities should be readily available. 

- During testing of pipelines by air, the area shall be cordoned off and clear 

working placards shall be displayed. 

- All safety precautions shall be observed in storage and handling of solvents. 

Passing and acceptance of pipelines 

Prior to passing and acceptance of pipelines for operation they shall be inspected 

with the view to check that all civil, structural, erection and special works are completed. 



GS-02




Before handing over the pipelines for operation, the Contractor shall provide the 

following technical documents. 

001 Certificates of inspection, degreasing and testing of fittings, pipe joints and parts. 

002 Certificate on the inspection of internal cleanliness of pipes. 

003 Certificates on pipe, flanges, plugs and welding material. 

004 Copies of the welder`s certificates. 

005 Results of mechanical testing of samples. 

006 Certificate on testing of pipelines for strength and leaks. 

007 Principal scheme of pipelines with indications of welded butts and labels. 



GS-02

01 GENERAL 




01.01 This specification covers the materials, tools, facilities and quality 

requirement for surface preparation and painting of steel structures, 

equipment, piping, ducts, chutes, wood work etc. 

01.02 This is only a general guideline of the painting scheme to be followed by 

the Tenderer. However, in case a specific painting procedure is stipulated 

in any tendering specification, then this general guideline shall be 

superceded. Any special case which may arise from time to time shall be 

dealt with individually on the merit of each case 

01.03 The term “painting” referred herein covers rust preventive, fungus/insects 

preventive and decorative coating along with surface protection of the 

following area but not limited to the areas indicated below. 

i) Structural steel works 

ii) Mechanical equipment 

iii) Electrical equipment 

iv) Instrumentation and control equipment. 

v) Pipe work 

vi) Oxygen plant, etc. 

01.04 Surfaces made of asbestos, aluminum, brass, bronze, galvanized steel, 

stainless steel, cast iron and other corrosion resistant alloys and 

rubber/s ynthetic polymer/fiber reinforcement plastic and buried pipe work 

are not required to be painted unless specified except for aesthetic 

purposes or for identification bands, wherever relevant. 

01.05 The complete paint system for any item includes the following basic 

activities: 

i) Proper surface preparation 

ii) Application of primer coats 

iii) Application of intermediate coats 

iv) Application of finished coats 

All the above coats shall be of quality paint products and of approved 

make. The scope of work shall also include supply of all paint materials as 

per specification described herein. 

01.06 If the contractor desires to adopt alternative paint s ystem for any specific 

item for an improvement or equivalent to the s ystem specified here-in or 

as per recommendations of paint manufacturer, may do so subject to 

purchaser’s approval in advance. 

02 SURFACE PREPARATION 

02.01 Surface preparation required for paint application, shall be such as to 

clean the surface thoroughly of any material which will be conducive to 

premature failure of the paint substrates. 

Painting 


GS-09




02.02 All surfaces shall be cleaned of loose substances, and foreign materials, 

such as dirt, rust, scale, oil, grease, welding flux, etc. in order that the 

prime coat is rigidly anchored to the virgin metal surface. The surface 

preparation shall confirm to pictorial representation of surface quality 

grade of Swedish Standards Institution SIS – 055900 or equivalent 

standards such as SSPC – VIS – 1.67 or DIN 55928(Part 4) or BS 4232 or 

IS 1477 – 1971 (Part I) 

02.03 The acceptable surface preparation quality / grade are described under 

each paint system. The procedures include solvent cleaning, hand tool 

cleaning, power tool cleaning, blast cleaning, wood surface cleaning, 

flame cleaning and pickling. This will ensure surface quality as required 

by the specific primer paint. For ready reference surface preparation 

quality grade to be adopted in respect of SIS 055900 and DIN 55928 

(part-4) is given in Annexure-01. 

02.03.01 Solvent Cleaning 

The surface shall be cleaned by wiping, immersion, spraying or vapour 

contacting of a suitable solvent or washing with an emulsion or alkaline 

solution to remove oil, grease, dirt, old paint, etc. Solvent cleaning shall 

not remove rust, scales, mill scales or weld flux. Therefore, before 

application of paint, solvent cleaning shall be followed by other cleaning 

procedures as stated in subsequent clauses. 

02.03.02 Hand Tool Cleaning 

The surface shall be cleaned manually by vigorous wire brushing as per 

grade St-2 quality of Swedish Standard Institution SIS 055900 and DIN 

555928. This method effectively removes loosely adherent materials, but 

would not affect residues of rust or mill scales that are intact are firmly 

adherent. Finally the surface is to be cleaned with a vacuum cleaner or 

with clean compressed air or with clean brush. After preparation the 

surface shall have a faint metallic shine. The appearance shall 

correspond to the prints designated St – 2. 

02.03.03 Power Tool Cleaning 

The surface shall be cleaned by electric or pneumatic tools, such as 

brushes, sanding machines, disc abrasive grinder, rotary disc scaler etc. 

to St – 3 quality. The tools shall be used carefully to prevent excessive 

roughening of surface and formation of ridges and burrs. This method will 

remove loosely adherent materials but would not affect residues of rust or 

mill scales that are firmly adherent and intact. 

02.03.04 Blast Cleaning 

The surface shall be cleaned by impingement of abrasive materials, such 

as graded sand at high velocity created by clean and dry compressed air 

blast as per the grade according to Swedish Standard Institution SIS 

055900 .This method will remove loosely adherent materials as well as 

adherent scales and mill scales. Prior to application of blast, heavy 

deposit of oil and grease are removed by solvent cleaning excessive 

Painting 


GS-09




surface scales are removed by hand tools or power tool cleaning. The 

extent of removal of adherent scales is varied, depending on the 

application and are defined by the surface quality grades Sa1, Sa2, Sa2.5 

and Sa3 in the order of increasing cleanliness. The blast cleaning is not 

recommended for sheet metal work. 

02.03.05 Flame Cleaning 

02.03.06 Pickling 

The surface is cleaned by rapid heating by means of ox yacetylene flame 

to loosen the adherent scales, followed immediately by wire brushing. 

This method will remove loosely adherent materials as well as most of the 

adherent scales and mill scales. In order to minimize or prevent distortion 

flame cutting shall not be used on members having thickness of 6 mm and 

lower. 

In this method the surface is cleaned of mill scales, rust or rust scales by 

chemical reaction or electrolysis or both. 

03. PAINT APPLICATION 

03.01 Paints 

03.01.01 Paint shall be applied in accordance with paint manufacturer’s 

recommendations. The work shall generally follow IS 1477 – 1971 (Part II) 

for jobs carried out in India and SSPC-PA-1 or DIN 55928 or equivalent 

for jobs carried out outside India. 

03.01.02 General compatibility between primer and finishing paints shall be 

established by the paint manufacturer supplying the paints. 

03.01.03 In the event of conflict between this general procedure on painting and 

the paint manufacturer’s specification, the same shall be immediately 

brought to the notice of the Purchaser. Generally in cases of such 

conflicts, manufacturer’s specifications/recommendations shall prevail. 

03.01.04 Before buying the paint in bulk, it is recommended to obtain sample of 

paint and establish “Control Area of Painting”. On Control Area, surface 

preparation and painting shall be carried out. 

03.01.05 If required, samples of paint shall be tested in laboratories to establish 

quality of paint with respect to: 

(i) Viscosity 

(ii) Adhesion/Bond of paint in steel surfaces 

(iii) Adhesion/Simulated salt spray test. 

(iv) Chemical analysis (percentage of solids by weight) 

(v) Normal wear resistance as encountered during handling & erection. 

(vi) Resistance against exposure to acid fumes, etc. 

03.01.06 W hole quantity of paint for a particular system of paint shall be obtained 

from the same manufacturer. 

Painting 


GS-09




03.01.07 The main Contractor shall be responsible for supply of paints and this 

responsibility shall not be passed on to the sub-contractor. 

03.01.08 The painting material as delivered to the Contractor, must be in the 

manufacturer’s original container bearing thereon manufacturer’s name 

brand and description. Paint/Painting material in containers without labels 

or with illegible labels shall be rejected, removed from the area and shall 

not be used. 

03.01.09 Thinners wherever used shall be those recommended by the paint 

manufacturers and shall be obtained in containers with manufacturer’s 

name and brand name of thinner legibly printed, failing which the thinner 

is liable to be rejected and shall not be used. 

03.01.10 All paint containers shall be clearly labeled to show the paint 

identification, date of manufacture, batch number, special instruction, 

shelf life etc. The container shall be opened only at the time of use. 

03.01.11 All paints shall be stored in accordance with the requirements of laid 

down procedure by the paint manufacturer. 

03.01.12 All ingredients in a paint container shall be thoroughly mixed to break-up 

lumps and disperse pigments before use and during application to 

maintain homogeneity. 

03.01.13 The proposed make, quality and shade of the paint shall have the 

approval of the client. 

03.01.14 The colour code of the finishing paint to be followed shall be intimated to 

the successful Tenderer after finalisaiton of order. The undercoat shall 

have different tint to distinguish the same from the finishing coat. 

03.01.15 The Contractor shall furnish paint manufacturer’s test report or technical 

data sheet pertaining to the paint selected. The data sheet shall indicate 

among other things the relevant standards, if any, composition in weight 

percent of pigments, vehicles, additives, drying time, viscosity, spreading 

rate, flash point, method of application, quality of surface preparation 

required, corrosion resistance properties and colour shades available. 

03.01.16 For details of paint materials refer Annexure - 02 

03.02 General 

03.02.01 Each coat of paint shall be continuous, free of pores and of even film 

thickness without thin spots. 

03.02.02 Each coat of paint shall be sufficiently dry before application of next coat. 

03.02.03 Paint shall be applied at manufacturer’s recommended rates. The number 

of coats shall be such that the minimum dry film thickness specified is 

achieved. The dry film thickness of painted surfaces shall be checked with 

ELCOMETER of measuring gauges to ensure application of specified DFT. 

Painting 


GS-09




03.02.04 Zinc rich primer paints which have been exposed several months before 

finishing coat is applied shall be washed down thoroughly to remove 

soluble zinc salt deposits. 

03.02.05 The machine finished surfaces shall be coated with white lead and tallow 

before shipment or before being put out into the open air. 

03.02.06 Areas which become inaccessible after assemble shall be painted before 

assembly (after obtaining painting clearance from the inspecting authority) 

after requisite surface cleaning as specified. 

03.02.07 Paint shall not be applied when the ambient temperature is 5 deg C and 

below or 45 deg C and above. Also paint shall not be applied in rain, 

wind, fog or at relative humidity of 80 % and above unless the 

manufacturer’s recommendations permit. Applications of paint shall be 

only be spraying or brushing as per IS 486 – 1983 and IS 487 – 1985. 

03.02.08 Primer paint shall be applied not later than 2 – 3 hours after preparation 

of surface, unless specified otherwise. 

03.02.09 Edges, corners, crevices, depressions, joints and welds shall receive 

special attention to ensure that they receive painting coats of the required 

thickness. 

03.02.10 Surfaces which cannot be painted but require protection shall be given a 

coat of rust inhibitive grease according to IS 958 – 1975 or solvent 

deposited compound according to IS 1153 – 1975 or IS 1674 – 1960. 

03.02.11 Surfaces in contact during shop assembly shall not be painted. Surfaces 

which will be inaccessible after assembly shall receive minimum two coats 

of specified primer. 

03.02.12 Surfaces to be in contact with wood, brick or other masonry shall be given 

one shop-coat of the specified primer. 

03.03 Site/Field Painting 

03.03.01 W herever shop primer painting is scratched, abraded or damaged, the 

surface shall be thoroughly cleaned using emery paper and power driven 

wire brush wherever warranted, and touched up with corresponding 

primer. Touching up paint shall be matched and blended to eliminate 

conspicuous marks. 

03.03.02 If more than 50% of the painted surface of an item requires repair, the 

entire item shall be mechanically cleaned and new primer coats shall be 

applied followed by intermediate and finishing coats as per painting 

specification. 

03.03.03 All field welded areas on shop painted items shall be mechanically 

cleaned (including the weld area proper, adjacent areas contaminated by 

weld spatter or fumes and areas where existing primer paint is burnt). 

Painting 


GS-09




Subsequently, new primer and finishing coats of paint shall be applied as 

per painting specification. 

03.03.04 The first coat of finish paint at site shall be applied preferable within three 

months of the shop paint. 

03.04 Structural 

03.04.01 All fabricated steel structure, fabricated steel pipes, etc. shall have a 

minimum of two coats of primer paint before dispatch to site. 

03.04.02 Parts of steel structures embedded in concrete shall be given a protective 

coat of Portland cement slurry immediately after fabrication and after 

surfaces of this part is thoroughly cleaned from grease, rust, mill scales, 

etc. No paint shall be applied on this part. 

03.04.03 All structures shall receive appropriate number of primer and finishing 

coats in order to achieve overall DFT as per design 

drawings/specification. 

03.05 Hot Surfaces 

03.05.01 Total DFT for heat resistant paints should not exceed 100 – 120 microns, 

otherwise flaking occurs (as per paint manufacturer’s recommendations). 

03.05.02 Heat resistant paints should be applied by brush. 

03.05.03 Primer coat should not be applied on the surfaces having temperature 

condition more that 120 deg C. 

04 PAINTING SCHEMES 

04.01 Legend 

For a complete painting scheme of any item being printed, all types of 

paints are to be procured from the same manufacturer as approved by the 

purchaser. 

SP - Surface preparation quality as per SIS standard 

2P1 - Two (2) coats of Primer paint type P1 

1I1 - One (1) coats of Intermediate paint type I1 

2F1 - Two (2) coats of Finish paint type F1 

DFT - Dry Film Thickness in microns developed 

CRT- Clean and Retouch 

Type of paint products like P1 to P9, I1 to I4 and F1 to F10 have been 

specified under Annexure-02. 

04.02 The painting scheme to be followed for various structure/equipment 

exposed to different condition is briefly given in Annexure-03 for guidance 

to the tenderer. 

Painting 


GS-09




04.03 The colour code for different applications are indicated in Annexure-04. 

W herever colour codes are not specified, the same is to be mutually 

agreed between the Purchaser and Contractor. 

05. GUARANTEE 

05.01 The Contractor shall guarantee that the physical and chemical properties 

of the paint materials conform with the specification of paint products. 

05.02 The Contractor shall submit internal test reports from paint manufacturers 

regarding the quality of paint whenever asked by the 

Purchaser/Consultant. 

05.03 Guarantee period shall commence from the date of completion of finishing 

coat of paint. The guarantee period will be indicated depending on the 

type of surface preparation and s ystem of painting. To fulfill this 

obligations the Contractor may obtain from the painting manufacturer, 

guarantee for the performance of paint/painted surfaces. 

Painting 


GS-09




Surface Preparation Grade 

Sl. 

Surface Preparation 

No. 

1 Blast cleaning to white metal 

Removal of all visible rusts, mill-scales, paint and 

foreign matters. 

2 Blast cleaning to near white metal: 

95% of any section of surface area is free from all 

rusts, mill-scales and visible residues. 

3 Blast cleaning to commercial quality: 

At least 2/3 of any section of the surface area is free 

from all rusts, mill-scales and visible residues. 

4 Brush-off blast cleaning: 

Removal of all loose mill-scales, rust and foreign 

matters etc. 

5 Power tool cleaning: 

Very thorough scrapping and wire brushing to 

remove loose mill-scale, rust and foreign matters to 

have pronounced metallic shine. 

6 Hand tool cleaning: 

Removal by hand brushing of loose mill-scale, loose 

rust and foreign matters. 

Painting 


Swedish Std 

SIS 055900 

Annexure-01 

DIN Std. Din 

55928 (Part 4) 

Sa 3 Sa 3 

Sa 2.5 Sa 2.5 

Sa 2 Sa 2 

Sa 1 Sa 1 

St 3 St 3 

St 2 St 2 

GS-09



PAINT M ATERIALS 

01. PRIMER PAINTS (P) 


Painting 


Annexure - 02 

Primer paint products shall be applied only on dry and clean surfaces. 

01.01 Primer Paint – P1 (Phenolic – Alkyd Based) 

A single pack air drying phenolic modified alk yd composition with zinc 

phosphate as a primer paint conforming generally to IS : 2074. 

Air drying time - About 60 minutes (touch dry) 

- Overnight (hard dry) 

Dry film thickness (DFT)/Coat - 40 microns (min) 

Temperature resistance - Upto 100 0 C dry heat 

01.02 Primer Paint – P2 (Chlororubber Based) 

A single pack air drying high build chlorinated rubber based zinc 

phosphate primer. 

Percent chlororubber - 20 to 22 (% Chlorine above 65% in 

chlororubber) 

Air drying time - About 15 minutes (touch dry) 

- Overnight (hard dry) 

DFT/ Coat - 50 microns (min) 

Temperature resistance - Up to 65 0 C dry heat 

01.03 Primer Paint – P3 (PVC Copolymer Alkyd Based) 

Polyvinyl chloride (PVC) - Alkyd zinc phosphate – redoxide 

based primer 

Ratio : PVC copolymer + alkyd resin (1:1) 

Pigments : Zinc phosphate & Fillers 

Air drying time - 24 hours 

DFT/Coat - 80 microns 


GS-09

01.04 Primer Paint – P4 (Epoxy Based) 




A two pack air drying Epoxy polyamide resin based red oxide-zinc 

phosphate primer. 

Epoxy content (% wt.) - 15 to 18 

Air drying time - 

- 

Painting 


About 30 minutes (touch dry) 

overnight (hard dry) 

DFT/Coat - 30 microns (min) 


01.05 Primer Paint – P5 (Epoxy Based) 

A two pack air drying Epoxy polyamide with zinc dust of at least 92% zinc 

dust on the dry film 

Epoxy content (% wt.) - 8 to 10 


Less than 10 minutes (touch dry) 

Less than 2 hours (hard dry) 



01.06 Primer Paint – P6 (Poly – Vinyl Butyral Resin Based) 

A two pack air drying polyvinyl butyral resin based wash primer with rust 

inhibitive pigments. 


- 


5 to 7 minutes (touch dry) 

2 hours (hard dry) 


Application for - Galvanised iron, aluminium, light 

alloys etc. on which the adhesion of 

conventional paints are poor. 

01.07 Primer Paint – P7 (Ethyl Zinc Silicate, EZS Based). 

A two pack heavy duty zinc dust rich silicate primer which protects the 

surface with just a single coat. 

Total solids (3 wt) - 84 +/- 2 

Density ( g / cc ) - 3.07 +/- 0.05 

GS-09




Air drying time - To top coat 16 hours 

DFT / coat - 60 microns 

Temperature resistance - Upto 450 deg C dry heat 

01.08 Primer Paint – P8 (High Build Coal Tar Epoxy) 

A two pack cold cured H.B. epoxy coal tar coating – no primer is required. 

Mixing ratio - Base: Hardener (4:1by vol.) 

Air drying time - 48 hours (hard dry) 

Full cure 7 days 

DFT / Coat - 100 microns 

01.09 Wood Varnish-P9 

Treated oil based primer pigmented with suitable pigments : 

Air drying time - 16 hours for application of 

top coat. 

Coverage - 10 to 14 sq. m/litre 

02. INTERMEDIATE PAINTS (I) 

These paints shall be applied over primer coats as an intermediate layer to 

provide weather proof seal of primer coats. 

02.01 Intermediate Paint-II ( Phenolic alkyd based) 

A single pack high build phenolic based paint with micaceous iron oxide 

(M10) . 

Air Drying Time - 4 to 6hours (touch dry) - 

2 days (hard dry) 

DFT /Coat - 75 microns (min) 


Compatible with - Primer P1 

02.02 Intermediate Paint-I2 (Chlororubber based) 

A single pack air drying high build chloro based paint with MIO. 

Air Drying Time - 15 minutes (touch dry) 

- 24 hours (hard dry) 



Compatible with - Primer P2,P3 & P4 

02.03 Intermediate Paint-I3 (PVC – Alkyd Based) 

PVC Coploymer - Resin 1 : 1 

Pigments - Micaceous iron oxide (MIO) 


Painting 


GS-09





Compatible with - Primer P2 & P3 

02.04 Intermediate paint-I4 

A two pack air drying high build epoxy resin based paint with MIO. 

Air drying time - 6 to 8 hours (touch dry) 

- 7 days (full cure) 

DFT / coat - 100 microns 


Compatible with - Primer P4 & P5 

03. FINISH PAINTS (F) 

Finish paint costs shall be applied over primer coats and intermediate 

coats after proper cleaning and touch up of primed surface. 

03.01 Finish Paint – F1 

A single pack air drying high gloss phenolic alk yd modified synthetic 

enamel paint suitably pigmented. 


- 

Painting 


3 to 4 hours (touch dry) 




Compatible with - Primer P1 

Intermediate I1 

Colour 

- Generally all shades 


A single pack air drying polyurethane enamel of high gloss and hard finish 

suitably pigmented. 


- 

2 to 2 ½ hours (touch dry) 




Compatible with - Primer P1 & P8 and 


Colour 


GS-09





A two pack air drying bituminous aluminum paint. 


- 

Painting 






Compatible with - Primer P1 and Intermediate I1 

Colour 


- Bright metallic 

A ready mixed oil-alkyd based s ynthetic enamel paint of high gloss and 

hard wearing properties. 


6 to 8 hours 

Coverage - 14 to 16 Sq. m /litre 


Compatible with - P8 

Colour 



A single pack air drying plasticized chlororubber paint suitably pigmented. 


- 

30 minutes (touch dry) 




Compatible with - Primer P2 & P3, 

Intermediate I2 & I3 

Colour 

- Nearly all shades except few. 

GS-09





A PVC – Copolymer alk yd based enamel. 

Density - 

Total solids (1 wt) 


Painting 


1.17 + 0.05 

- 55 + 2 


Compatible with - P2 and P3 

A two pack air drying epoxy polyamide enamel suitably pigmented. 


- 


7 days (full cure) 



Compatible with - Primer P4 & P5, 


Colour 


- Generally all shades. 

A single pack synthetic rubber based aluminium paint. 


- 

2 hours (touch dry) 




Compatible with - No Primer paint except primer P6 is 

applicable in case of non-ferrous 

substrate. 

Colour 

- Smooth aluminium. 

GS-09

Sl. 

No. 

Description 

1.0 Steel Structures 

(Temp. not exceeding 80 0 C) 




PAINTING SCHEME 

1.1 Technological steel structures for plant and 

equipment 

Indoor 

Outdoor 

1.2 Fabricated steel structures at site for rung 

ladders, cat-ladders, gates, rolling shutters, 

etc. (Springs/rubbing surfaces excluded) 

- Indoor / Outdoor 

1.3 Walkways, stairs, platforms etc. which are of 

wearing surface 

- Indoor 

- Outdoor 

1.4 Steel doors and windows 

- Indoor / outdoor 

Sl. 

No. 

Description 

2.0 MECHANICAL EQUIPMENT 

2.1 Mechanical equipment 

(Temp. not exceeding 80 0 C) 

2.1.1 Static equipment like storage tanks, vessels, 

bins, bunkers, heat exchangers, coolers, 

Painting 


Painting Scheme 

At Shop At Site 

SP – Sa 2.5 

2P1 

SP – Sa 2.5 

2P1 1I1 

SP – St-2 and/ 

or St-3 

2P1 

SP – St-2 and/ 

or St-3 

2P1 

SP- St2 and/ 

or St-3 

2P1 1I1 

SP–St-2 and / or 

St-3 

2P1 1I1 

CRT 

2F1 

CRT 

2F1 

CRT 

2F1 

CRT 

2F1 

CRT 

2F1 

CRT 

2F2 



Annexure - 03 

Total 

DFT 

(Refer 

Note-1) 

130 

205 

130 

130 

205 

215 

Total 

DFT 

GS-09

Sl. 

No. 




Description 

cyclones, scrubbers, etc. 

- Indoor 

- Outdoor 

2.1.2 Rotary/moving equipment and machineries 

like crushers, mills, vibratory screens, bin 

activators, blowers, fan, air/gas 

compressors, pumps, gear boxes, machine 

housings etc. 

- Indoor 

Painting 




SP – Sa 2.5 

2P2/2P3 

SP – Sa 2.5 

2P2/2P3+1I2/1I3 

SP – Sa 2.5 

2P3/2P4 

- Outdoor SP-Sa 2.5 

2P3 + 1I3/1I4 

Sl. 

No. 

Description 

3.0 Pipe / Duct work 

(Overground) 

3.1 Non – insulated 

(temperature up to 80 0 C) 

3.2 

- Indoor SP – St2 and 

or St3 

2P1 

- Outdoor SP – St2 and / 

or St3 

2P1 + 1I1 

Insulated (hot) 

- Indoor/Outdoor 

Sl. 

No. 

4.0 Oxygen Plant 

4.1 Outdoor steel 

structures 

Description 

CRT 

2F5/2F6 

CRT 

2F5/2F6 

CRT 

2F6/2F7 

CRT 

2F6/2F7 



SP- St2 and/ 

or St3 

1P1 

CRT 

2F1 

CRT 

2F1 

Remove 

paint and 

insulate 



SP – St2 and / 

or St3 

CRT 

Total 

DFT 

170/240 

240/320 

240/140 

320/340 

Total 

DFT 

130 

205 

Total 

DFT 

GS-09

Notes: - 




Sl. 

No. 

Description 



Total 

DFT 

2P1 + 1I1 2F3 205 

4.2 Rotary equipment like air compressors Sa 2.5 

CRT 

2P4 

2F7 140 

5.0 Others 

5.1 Standard mobile equipment like chasis of 

trucks, dumpers, crawler cranes bulldozers, 

railway rakes, chasis of slag cars, ladle cars, 

etc. 

5.2 Laboratory equipment like ovens, screens, 

magnetic stirrers, samplers, etc. 

5.3 Steel structures partly immersed in water 

Painting 


As per manufacturer’s standards 

Stove enamelling CRT 

SP – Sa 2.5 

1. Painting scheme of all fabricated steel structures, fabricated pipe work, building 

structure, conveyor galleries, pipe trestles etc. is indicated in the Technical 

Specification of steel structures. 

2. Primer Paint 

Primer coat shall be suitable for intended temperature applications as per 

manufacturer’s recommendation. The primer selection shall be generally in line 

with the specification laid down in Annexure-02. 

3. Finish Paint 

In case of Aluminium cladding final painting will not be required. 

2P8 

CRT 

110 

200 

GS-09




COLOUR CODE 

Painting 


ANNEXURE - 04 

The colour codes are mentioned for all the items including pipe work. Shades of finish coat of paint applied 

over respective item indicated below are tentative and subject to alteration as per Purchaser’s request or due 

to compatible paint system adopted. The service for which colour code/bands are not specified are to be 

mutully agreed for by the Purchaser & the Contractor. 

Sl. 

No. 

Items Painted Colour 

Colour No. of 

IS:5 

1. Structures 

Building frames including bracings, side 

girts, louvers etc. 

Aircraft grey 693 

Crane girders Azure blue 104 

Crane stops Post office red 538 

Gutters Black bituminous aluminium - 

Fire escape platforms ladders, etc. Signal red 537 

General hand railing, top runners Lemon yellow 355 

Rung ladders Lemon yellow 355 

All members blocking passages for 

movement 

Lemon yellow 355 

Trestles, towers and pipe bridges Dark admiralty grey 632 

Conveyor gallery structures Aircraft grey 693 

Steel chimneys Aluminium - 

2. Equipment and Machinery 

General indoor equipment Light grey 631 

General outdoor equipment Dark admiralty 632 

Crane bridges, trolleys, hooks etc. and Base : Lemon yellow 

355 

other mobile equipment 

Stripes : Black (100 mm 

wide) 

Furnaces Aluminium 

Tanks Base : Same as for general 

equipment 

Strips : Same shade as for 

piping around the tnk at half 

the tank height 

Fire-fighting equipment Signal red 537 

3. Pipe work 

Colours shall be as given below. The base colour shall be applied throughout entire length except 

on surfaces of materials such as asbestos, aluminium, brass, bronze, galvanized steel, stainless 

steel and other corrosion resistant alloys and rubber / synthetic polymers. In such cases 

identification colour bands of at least 500mm width shall be provided near each branch, valve and at 

distances not exceeding 10m either as local colour coatings or coloured adhesive type of suitable 

material or label attached to the pipe work. Additional identification bands superimposed over the 

base colour shall be provided near each branch, valve and at distance not exceeding 10m. The 

bands shall be atleast 25mm wide except in care of double bands where the first band shall be about 

100mm wide. Direction of flow shall be clearly marked on the pipelines at intervals not exceeding 

10m and all branches and change of directions. 

GS-09




Service Colour Colour No. of IS:5 

Sea or river water (untreated) Base – Sea green 

217 

Band - White 

- 

Cooling water Base – Sea green 

217 

Band - White 

166 

Boiler feed water Base – Sea green 217 

Condensate Base – Sea green 

217 

Band – Light brown 410 

Drinking water Base – Sea green 

217 

First band - French blue 166 

Second band – Signal red 537 

Industrial water Base – Sea green 

217 

Band – Light orange 557 

Compressed air Base – Sky blue 101 

Instrument air Base – Sky blue 

101 

Band – Light brown 410 

Drainage Base – Black - 

Fuel oil Base – Light brown 410 

Band – Signal red 

537 

Coke oven/BF gas/other fuel Base – Canary yellow 309 

gases 

Band – Signal red 

537 

Argon Base – Canary yellow 309 

Band – French blue 166 

Acetylene Base – Canary yellow 309 

Band – Dark violet 796 

LP Gas (LPG) Base – Canary yellow 309 

First band – Signal read 537 

Second 

green 

band – Traffic 267 

Nitrogen Base – Canary yellow 309 

Band – Black 

- 

Oxygen Base – Canary yellow 309 

Band – White 

- 

Non-acidic slurries Base – Sea green 

217 

Band – White 

- 

Fire-fighting system Base – Signal red 537 

Rain water down pipes Base – Sea green 

217 

Band – Sky blue 

101 

Duct work Base – Aluminium - 

Note : For these services, hazard marking as per fig. 4C of IS:2379 shall also be provided. 

Painting 


GS-09

QUALITY ASSURANCE PLAN 

FOR 

CONTRACTOR PROJECT 

ORDER NO. & DATE PACKAGE NO. 

SUB - CONTRACTOR STRUCTURAL & MECHANICAL 

PACKAGE NAME 

ORDER NO. & DATE 

EQUIPMENT 

INSTRUCTIONS FOR FILLING UP : CODES FOR EXTENT OF INSPECTION, TESTS, TEST CERTIFICATES & DOCUMENTS : 

1 QAP shall be submitted for each of the equipment separately w ith break Code Description Code Description Code Description DOCUMENTS : 

up of assembly / sub-assembly & part/component or for group of equip- 

ment having same specification. 1. Visual(Welding etc.) 19. Sponge test 34. Internal Inspection report D1. Approved GA draw ings 

2. Dimensional 20. Dust/Water Ingress test by Contractor D2. Information and other reference 

2 Use numerical codes as indicated for extent of inspection & tests and 3. Fitment & Alignment 21. Friction Factor Test 35. Hardness test drg / stamped drgs released 

submission of test certificates & documents. Additional codes & des- 4. Physical Test(Sample) 22. Adhesion Test 36. Spark test for Lining for manufacture 

cription for extent of inspection & tests may be added as applicable for 5. Chemical Test (Sample) 23. Performance Test/ 37. Calibration D3. Relevant catalogues 

the plant and equipment. 6. Ultrasonic Test Characteristic curve 38. Safety device test D4. Bill of Material/ item no./ 

7. Magnetic Particle Test(MPT) 24. No. Load/Free Running Test 39. Ease of Maintenance identification. 

3 Separate identification number w ith quantity for equipment shall be 8. Radiography test 25. Load/Overload Test 40. Thickness measurement D5 Matchmark details 

indicated w herever equipment having same specification belonging to 9. Dye Penetration Test 26. Measurement of speeds of Zinc coating D6 Line/Layout diagram 

different facilities are grouped together. 10. Metallographic Exam. 27. Accoustical test D7 Approved erection procedures 

11. Welder's Qualification & 28. Geometrical Accuracy D8 Unpriced sub P.O.w ith 

4 Weight in tonnes (T) must be indicated under column 5 for each item. Weld Procedure Test 29. Repeatability and Positioning specification and amendments 

Estimated w eights may be indicated w herever actual w eights are not 12. Approval of Test and Repair Accuracy if any 

available. Procedure 30. Proving Test D9. Calibration Certificate of all 

13. Heat Treatment 31. Surface Preparation measuring instrument and 

ABBREVIATIONS USED : 14. Pressure Test 32. Manufacturer's Test Certificates gauges. 

15. Leakage test for bought out items D10. Ordering Specification 

CONTR : CONTRACTOR 16. Balancing 33 IBR/Other statutory agencies' 

17. Vibration Test compliance certificate 

MFG : MANUFACTURER 18. Amplitude test 

E Q U I P M E N T D E T A I L S INSPECTION AND TESTS 

Raw Material and Inprocess Test Certificates & Acceptance Criteria 

Sl. Description (w ith equipment Identification Quantity Manufacturer's Expected Sche- stage Inspection Final Inspection / Test by documents to be Standards/IS/BS/ REMARKS/ 

No. heading,place of use and No. No / M T Name and Address dule of Final submitted to MECON ASME/Norms and SAMPLING PLAN 

brief specification) Inspn MFR CONTR MECON MFR CONTR MECON Documents 

FORM NO. 11.20 (DQM) F-09, REV-0 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 

( Q . A . P . NO. TO BE ALLOTTED BY MECON ) 

For CONTRACTOR / SUB - CONTRACTOR NO. / / / M- REV. 

for MECON ( Stamp & Signature ) (Stamp & Signature ) SHEET : OF

CONTINUATION SHEET 







1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 


For CONTRACTOR / SUB - CONTRACTOR NO. / / / M- REV. 


CONTRACTOR PROJECT 

ORDER NO. & DATE PACKAGE NO. 

SUB - CONTRACTOR PACKAGE NAME 

ORDER NO. & DATE 

QUALITY ASSURANCE PLAN 

FOR 

ELECTRICAL EQUIPMENT 

INSTRUCTIONS FOR FILLING UP : CODES FOR EXTENT OF INSPECTION, TESTS, TEST CERTIFICATES & DOCUMENTS : 

1 QAP shall be submitted for each of the equipment separately w ith break Code Description Code Description Code Description DOCUMENTS : 

up of assembly / sub-assembly & part/component or for group of equip- 

ment having same specification. 1. Visual 14. Impalse Test. D1. Approved GA draw ings 

2. Dimensional 15. Partial Discharge Test. D2. Approved single line / 

2 Use numerical codes as indicated for extent of inspection & tests and 3. Fitment & Alignment 16. Heat run test/Temp. rise Test. schematic diagram. 

submission of test certificates & documents. Additional codes & des- 4. Physical Test(Sample) 17. Enclosure protection Test. D3. Catalogues / Approved data sheet 

cription for extent of inspection & tests may be added as applicable for 5. Chemical Test (Sample) 18. Calibration. D4. Approved bill of materials. 

the plant and equipment. 6. Ultrasonic Test 19. Noise & Vibration. D5. Unpriced P.O. copy. 

7. Magnetic Particle Test(MPT) 20. Test Certificates for bought D6. Calibration Certificate of all measuring 

3 Separate identification number w ith quantity for equipment shall be 8. Radiography test out components. instrument and gauges 

indicated w herever equipment having same specification belonging to 9. Dye Penetration Test 21. Tank pressure Test. 

different facilities are grouped together. 10. Measurement of IR Value : 22. Paint shade verification. 

a) Before HV Test 23. Short time rating. 

4 Weight in tonnes (T) must be indicated under column 5 for each item. b) After HV Test 24. Operation & functional 

Estimated w eights may be indicated w herever actual w eights are not 11. High voltage test/Dielectric check. 

available. test. 25. Overspeed Test. 

12. Routine test as per relevant 26. Flame proof Test 

ABBREVIATIONS USED : IS/other standard. 27. Clearance and creepage 

13. Type tests as per relevant IS/ distance. 

CONTR : CONTRACTOR other standard. 28. Acceptance Tests 

as per relevant IS 

MFG : MANUFACTURER 







1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 


For CONTRACTOR / SUB - CONTRACTOR NO. / / / E- REV. 


CONTINUATION SHEET 







1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 


For CONTRACTOR / SUB - CONTRACTOR NO. / / / E- REV.

4 General Technical Specification of Bhilai Steel Plant, SAIL ...

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