High-quality Pneumatic Knife Gate Valve 

Forged steel swing check valve

Forged steel check valve is to rely on the flow of the medium itself and automatically open and close the valve disc, used to prevent the reverse flow of medium, also known as check valve, one-way valve, reverse flow valve, and back pressure valve. Check valve is a kind of automatic valve. Its main function is to prevent the reverse flow of medium, reverse rotation of pump and drive motor, and discharge of container medium. The check valve can also be used to supply the auxiliary system in which the pressure may rise above the system pressure. Check valve can be divided into swing check valve (rotating according to the center of gravity) and lifting check valve (moving along the axis).

Forged steel swing check valve-Features

1. The body is forged steel and available in reduced and full bore design
2. Bolted bonnet Welded Bonnet or Pressure Seal Bonnet
3. Swing Type, Anti-Rotation Disc
4. Renewable seat rings

Forged steel swing check valve- Specifications and standards

1. Design standard: API602, ASME 16.34
2. Pressure temperature standard conform to ASME 16.34
3. Face to face dimension conform to CGV standard
4. Testing and inspection standard conform to API 598
5. Flanged Ends to ASME B16.5
6. Butt Welded Ends to ASME B16.25
7. Screwed Ends to ASME B1.20.1
8. Socket Welded Ends to ASME B16.11
9. Ends Flanged ends, Socket Weld End, Screwed End, Butt-weld end
10. Size range:1/2’’~3’’(DN15~DN80)
11. Class :150LB, 300LB,600LB,900LB,1500LB,2500LB,4500LB
12. Body material:ASTM A105, ASTM A350 LF2, ASTM A182 F5, ASTM A182 F22, ASTM A182 F304, ASTM A182 F304L, ASTM A182 F316, ASTM A182 F316L, ASTM A182 F347, ASTM A182 F321, ASTM A182 F51, ASTM A182 F55, Inconel Alloy, Monel Alloy, Hastelloy Alloy.
13. Trim material:F6a / F316 / F304 / F316L / F321 /F51 / F55 / Inconel / Stellied or Hardfaced