HAWE Harvey RK / RB, RC, RE, ER-type check valve 
 HAWE Harvey RK / RB, RC, RE, ER-type check valves are closing valves. They can open the flow of oil in one direction, while in the opposite direction to close the circulation. RK / RB-type check valve is a spring-loaded, solid structure, not sensitive to the dirt ball valve. RC-type check valve is installed at both ends threaded, spring loaded disc type check valve. It is not only close the oil flow from one direction, but can also be installed in the pump suction pipe as the oil valve. All Cartridge Check Valve can be installed with an ordinary twist drill hole (acute angle 118 degrees) processing. ER-type Cartridge Check Valve is a spring loaded ball valve, globe valve plate is mainly used for stacking combinations. 
 Maximum pressure Pmax = 400 至 700 bar maximum flow Qmax = 6 至 120 l / min. 


 HAWE Harvey RH and DRH Series check valve 
 HAWE Harvey RH and DRH Series check valve is closing valves, hydraulic actuators for closing one or both of the flow of oil. The valve can also be used as hydraulic unloading valve. RH and DRH-type check valve with a port or two pre-unloading port to ease the implementation of components or large flow of high pressure unloading during impact. DRH-type check valve is not only connected with the tube and plate connection, but also with the buffer and used in combination with the pressure limiting valve. Therefore, this check valve has a wide application. 
 Maximum pressure Pmax = 400 至 700 bar maximum flow Qmax = 15 至 160 l / min.