Check valve can control medium flow direction.It is designed as a lifting structure. Its main structure includes valve body, bonnet, one-way flow control element and other parts. The one-way flow control element is made of surfacing alloy to meet the production and operation requirements of various media. The one-way flow control elements with different sizes are designed according to the requirements, which have advantages of stable operation, erosion resistance, simple operation, convenient disassembly and good sealing performance.

Nominal Bore: 2-1/16 "~4-1/16"
Working Pressure: 2000Psi~20000Psi
Temperature Class: L.X (-46 ℃ ~ 180 ℃)
Material Class: AA~HH
Product Specification Level: PSL1~PSL4
Performance Rate: PR1~PR2
Working medium: oil, natural gas, mud, gas containing H2S and CO2