Pneumatic safety valve is an important switch equipment for wellhead. Its main structure includes valve body, bonnet, gate, seat, stem, hydraulic actuator and other parts. Metal to metal seal meets the production and operation requirements of various media. Hydraulic safety valve adopts hydraulic remote control to open the valve, and automatically close by the spring energy storage. It can display the indication of the valve switch, reduce the safety risk and labor intensity of operators, has simple operation and good sealing performance. Thermal locking and position viewing devices can be set.

Nominal Bore: 1-13/16 "~7-1/16"
Working Pressure: 2000Psi~20000Psi
Temperature Class: L.U (-46 ℃ ~ 121 ℃)
Material Class: AA~HH
Product Specification Level: PSL1~PSL4
Performance Rate: PR1 ~ PR2
Working medium: oil, natural gas, mud, gas containing H2S and CO2