Forged Steel Check Valve


Forged steel check valve is designed to prevent reverse flow in high-pressure industrial pipeline systems. With excellent pressure resistance, reliable sealing performance, and durable construction, they are widely used in oil and gas, petrochemical, chemical processing, and power generation applications.

Specification

Size: NPS 1/2″ ~ NPS2″

Pressure: 150LB~2500LB

Connection:RF, RTJ, BW,SW

Standard: API602,ANSI B16.34

Construction Type: BB or WB,OS&Y,  Replaceable Seat

Face to Face: ASME B16.10

End standard: ASME B1.20.1     ASME B16.5     ANSI B16.11

Temperature: -29°C ~ 550°C

Main material: A105, F316, F304, F11, F12

Medium: water, steam oil, nitric acid, acetic acid, etc

Applications: Suitable for tap water, food, pharmaceutical, electric petroleum, liquefied gas, steam, and other media pipelin

Main Parts Material:

Part

A105N

 F22

 F304(L)

 F316(L)

Body

A105N

A182 F22

A182 F304(L)

A182 F316(L)

Disc

A276 420

A276 F22

A276 304(L)

A276 F316(L)

Stem

A182 F6a

A182

A182 F304(L)

A182 F316(L)

Gasket

316+Flexible graphite

316+PTFE

Bonnet

A105N

A182 F22

A182/F304(L)

A182/F316(L)

Features:

  1. Design and manufacture according to API standards, reliable sealing, excellent performance.
  2. 600Lb above gate and seat overlaiedwith sellite, wear resistance, high temperature resistance, corrosion resistance,
  3. The valve stem is tempered and surface nitrided, and has good corrosion resistance and scratch resistance.
  4. It adopts wedge elastic gate structure, and sets rolling bearings with medium and large diameter, which is easy to open and close.
  5. 1500LB, 2500LB middle cavity adopts pressure self-tightening sealing structure