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

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General Technical Specification
Item Size Range Description Dimensional/
Design
Standard
Steam
trap
Note:
50 and below Thermodynamic steam trap
with inbuilt strainer, Class
800/900 and SW ends
Manufacturer’s
Standard
Gases & Liquid Fluids
Page 40 of 51
Material -
Carbon Steel
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
PIPING MATERIAL SPECIFICATION
SERVICE CONDITIONS : Maximum Operating Pressure 16 kgf /cm2 Temp 60 o C
CORROSION ALLOWANCE : 2 m.m.
Cleaning, Pickling, Passivation & Degreasing As Per IGC / IPSS code
Item Size Range Description Dimensional/
Design
Standard
Pipe
Fire
Breaker
Fittings
Material -
Carbon Steel
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 200 to 300 Seamless BE Sch.40 B36.10 ASTM A106 GR.B
DN 350 to 600 Seamless BE Sch.40 B36.10 ASTM A106 GR.B
DN 50 to 150 Copper Pipe B36.10 Deoxidised non
Arsenic Copper
DN 200 to 600 Copper Pipe B36.10 Deoxidised non
Arsenic Copper
DN 15 to 40 SW Fittings
# 3000
DN 50 and above BW Fittings
ANSI B 16.11 ASTM A 105
ANSI B16.9 ASTM A234 Gr WPB
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