The function of the S10P check valve is to only allow oil to flow freely from one direction, but not to allow reverse flow. The S10P check valve is a chain structure with small pressure loss. There are five opening pressures and three connection methods. It is mainly used at the outlet of the pump as a back pressure valve and bypass valve. Connection method: Tubular connection and board connection Jinhai is professional manufacturer of Various types of Directional Valves, Flow Valves, Pressure Valves and Accessories, Should you have any questions please feel free to come back to us.