General Description
The check valve's main function is to prevent medium flows backward, achieving the release of the medium. Lift check valve's main components are valve body, bonnet, disc, seat, spring. When the fluid flows along the desired direction, the fluid overcomes the spring force to push the disc, thus opening the valve and allowing the fluid to pass. When the fluid comes from the negative direction, the fluid pressure and spring force impact the disc simultaneously, then the valve is sealed.
Specifications
Design & Manufacture：API SPC 6A
Connection：Threaded , Flanged or Union connected
Nominal Diameter: 1-13/16“-4-1/16"
Working Pressure: 3000PSI~15000PSI
Material grade: AA-HH
Body Material: Carbon steel 10#,20#,1045; Low-alloy steel ASTM4130; Stainless steel 410,17-4PH,316;YG8;CRA,CRAb
Application
Lift check valve has large resistance. So it is generally installed in the conventional kill manifold.
Structure Features
1.Spring Forced type Seal with great seal performance;
2.Free maintenance design.It is no need to maintain during service life;
3.Hard alloy sealing face ensures great erosion resistance;
4.The direction of installation is not limited as the valve adopts lifting structure;
5.The Valve is designed with Integral type forged body, which could be applied to all range of pressure ratings
