Check Valve

Check valve affects seal between valve core and body by fluid pressure ~ the higher the fluid pressure, the better sealing effects. The cavity could contain pressure in pipes all the time.

The body is made of forging alloy steel, with good mechanical property, pressure endurance, safety and reliability.

Bonnet is connected with valve body with bolts. It has seals on bonnet and inner wall of body. Fitting spat between bonnet and body is designed to zero, so as to minimize loading on bolts and the corrosion of bolt and holes.

Carbide sealing surface has good anti-abrasion and corrosion resistance. The material of valve core is fabricated of anti-sulfide steel. The valve is suitable for H2S service.

Main Technical Parameters

Working Pressure: 2000PSI ~ 15000PSI

Nominal Bore Diameter: 2-1/16" ~ 7-1/16"

Temperature Class: K~V

Product Specification Level: 1~4

Performance Requirement: 1~2

Material Class: AA~FF

Working Medium: Petroleum, natural gas