Forged Steel Integral Pressure Seal Gate Valve adopts self-sealing structure in the middle chamber, sealing performance is good.The two ends of the branch pipe are welded structure.The sealing surface of Forged Steel Integral Pressure Seal Gate Valve disc and valve seat is made of stellite cobalt-base hard alloy surfacing welding, with good abrasion resistance, high temperature resistance and abrasion resistance.The stem is tempered and surface nitrogenated.Bonnet stuffing box depth reasonable packing and corrosion inhibitor seal reliable.Forged Steel Integral Pressure Seal Gate Valve has an inverted seal structure to ensure that the valve does not leak through the stem when open for operation.Widely used in petroleum, chemical, natural gas, metallurgy, chemical fiber, paper, urban construction, and other fields.

Forged Steel Integral Pressure Seal Gate Valve Standard specification
Design and manufacture:API 602,BS 5352,ANSI B16.34.
Connection ends conform to:
    -Socket welded ends:ANSI B16.11.
    -(NPT threaded)Screw ends:ANSI B1.20.1.
    -Butt-welded ends:ANSI B 16.25.
    -Flanged ends:ANSI B 16.5.
Inspection & testing:API 598.
Tag: MSS SP 25.

Forged Steel Integral Pressure Seal Gate Valve Construction features
Non-Rising Handwheel,
Outside Screw And Yoke,Rising Stem.
Integral Backseat.
Solid Wedge,Renewable Seat Rings,Sprial Wound Gasket.
Spring Loaded To Ensure That Even In The Low-Pressure Sealing Performance As Well.
Low Leakage Test Stem Packing By.
Automatically Adjust The Preload Gland Packing.

Forged Steel Integral Pressure Seal Gate Valve Product Range
Port:Full Port(FP)/Reduced Port(RP).
Structure:BB(Bolted Bonnet),WB(Welded Bonnet),PSB(Pressure Self-sealing Bonnet).
Rating: Class 150/ 300/ 600/ 800/ 900/ 1500/ 2500/ 4500.
Size Range:3/8" to 2" 
End Options: FLG, SW(Socket Welded), Threaded(NPT/BSP), BW(Butt Welded),

Forged Steel Integral Pressure Seal Gate Valve Optional Materials
Carbon Steel：A105,LF2
Stanless Steel：F304,F304L,F316,F316L
Duplex：F51,F55
Alloy：F1,F5,F5A,F9,F11,F22
 

Forged Steel Integral Pressure Seal Gate Valve Special Design:
    -Bellow Seal forged gate valve.
    -Cryogenic forged gate valve.
    -Extended body forged gate valve.
    -Venting forged gate valve.
    -Twins forged gate valve.