We can supply various cartridge check valve, for more information please feel free to contact us!

 A Check Valve allows fluid flow only in one direction, and does not allow the reverse flow. It can be used on the export of hydraulic pumps, in order to prevent fluid backflow; separated the link between the Circuit, in order to interfere with each other; parallel to the sequence valve, pressure reducing valve, throttle and Speed Control Valve parallel to form a Check Sequence Valve, check pressure reducing valve, check throttle speed control valve and so on. 
To choose the Check Valve should according to different application place, conform the opening pressure. If be used as back-pressure valve, generally the opening pressure should be higher; if just use as control the fluid to one way flow, can choose the lower opening pressure check valve.