Valve Body Material：A216/WCB,LCB/LF2,WC6/F11,WC9/F22,CF8/F304,CF3/F304L,CF8M/F316,CF3M/F316L
Pressure Range：Class 150~2500LB
Temperature Range： -29℃~560℃
Manufacturing Standards: API 594，API 6D
Structure Length: API 598，API 6D
Flange End Surface: ASME B16.5，ASME B16.47
Test standard: ISO 5208，API598，API 6D
The valve plate of the lug check valve is fixed on the valve body along a pivot, and the two springs are arranged on the valve plate above the sealing surface. Under the pressure of the medium flow pressure, the spring is pressed to force the valve plate to open. When the medium is reversed, the spring forces the valve to close.