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

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General Technical Specification
Item Size Range Description Dimensional/
Design
Standard
Fire
Breaker
Fittings
Flanges
Gases & Liquid Fluids
Page 42 of 51
Material -
Carbon Steel
DN 300 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
ANSI B 16.11 ASTM A 105
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
ends (class 300)
DN 50 and above Ball valve class 300 for
isolation purpose flanged
ends (class 300)
DN 15 to 40 Globe valve class 800 for
throttling purpose, Flanged
ends (class 300)
DN 50 and above Globe valve class 300 for
throttling purpose, Flanged
ends (class 300)
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;
/BRONZE ;13% Cr
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