Gate Valve

The high pressure range valves are with special features like water sealed gland for vacuum service, bypass arrangements for pressure balancing, special cleaning for oxygen service, multi start spindle for low effort operation, extended spindle ,nace for sour service in petroleum industries, etc.
Design
pr. & temp rating
face to face & end to end dimensions
flange ends
butt weld ends
testing
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asme b16.34 api 600 ibr
asme b16.34
asme b16.10 (upto 24")
asme b16.5
asme b16.25
api 598 en 12266 part 1 (bs 6755 part 1)
api trim no. & seat hardfacing
api 600
trim no. nominal trim material type seat wedge back seat
1 f6 13% cr steel 13% cr
4 hard f6 hardfaced with 13% cr steel hardfaced with 13% cr
5 hardfaced hardfaced with co-cr-w alloy hardfaced with stellite.6
8 f6 & hardfaced 13% cr steel & hardfaced with co-cr-w alloy stellite.6 13% cr stellite.6
13% cr
recommended bodybonnet & trim material for high temperature services (watersteam)