API6A Check Valves can be divided into three types, which are Swing check valve, Piston Check Valve and Lift Check Valve, all of these valves are designed as per API 6A 21th edition standard. They flow in a single direction and end connections are complied with API Spec 6A, metal-to-metal seal creates a stable performance for high pressure, high-temperature conditions. They are used for Chock manifolds and Christmas trees, CEPAI can offer the bore size from 2-1/16 to 7-1/16 inch, and the pressure range from 2000 to 15000psi.

Design Specification:

Standard Check gate valves are in accordance with API 6A 21th latest Edition, and use the right materials for H2S service according to NACE MR0175 standard.

Product Specification Level: PSL1 ~4　　　 Material Class: AA~FF　　 Performance Requirement: PR1-PR2　Temperature Class: LU

Product Features:

◆ Reliable seal，and the more pressure the better sealing

◆ Small vibration noise

◆ The sealing surface between gate and body is welded with hard alloy, which has good wear resistance performance

◆ The check valve structure can be Lift, Swing or Piston type.