Api 6a check valve

Lift check valve (single flow valve)
Lift check valve (single flow valve) is designed by poppet valve and spring. It can be driven by fluid to prevent medium backflow. It is suitable for high pressure and high temperature service places, including high pressure mud choke manifold, high pressure Christmas tree injection equipment and choke line.
Advantages & Features
-No lubricated parts, no routine maintenance
-The connection mode can be flange type, clamp type, butt welding or assembly
-Applicable to all material grades, temperature levels and product specification levels
-Reasonable structure, reliable sealing, excellent performance and good appearance
Basic parameters
Nominal diameter: 4 ““
Working pressure: 2000psi ~ 15000psi
Temperature: – 75 ° f ~ + 250 ° f (– 60 ° C ~ + 121 ° C)
Main materials: AA, BB, CC, DD, EE, FF, HH
Specification level: psl1-3
Performance level: PR1