API 600 Cast Steel Gate Valve Class 150LB

Cast Steel Gate Valves Features

● Flexible Wedge Disc(Solid Wedge On Request)
● Welded Seat/Threaded Seat (Renewable Seat)
● OS & Y- Outside Screw and Yoke
● Bolted Bonnet, Rising Stem, Non Rrising Handwheel
● Option: By Pass, Locking Device, Chain wheel

Design and Inspection Standard

● Design - API 600/ASME B16.34
● Face to Face - ASME B16.10
● End to End - ASME B16.10
● BW End - ASME B16.25
● Test - API 598
● Special - NACE MR-01-75

Design Features of Cast Steel Gate Valves                

● Long thread stem nut prolongs thread life and permits the removal of hand wheel in the fully open position.
● Spacer ring in conjunction with packing is used in gate valves of 300 class and above while 150-class valve is only fitted with packing; packing with lantern ring is available upon customer request.
● Flexible graphite gasket used for 150 Class gate valve, spiral wound gasket for Class 300 & 600 valves and metal ring gasket for gate valves of 900 or greater Class(600 Class is obtainable if customer requires)
● Integral guide inside body keeps wedge self-centered during valve opening and closing.

● Flexible wedge is able to compensate for seat surface distortion and body deformation caused by piping stress.
● Blowout retention design: the tapered backseat face firmly contacts backseat of bonnet.

● The strength of bonnet-wedge connection exceeds that of bonnet thread root.
● Renewable seal welded seats with stellite 6 are standard design while screwed-in seats are optional.

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Dimension and Weight 150LB Cast Carbon Steel Gate Valve