Rexroth Hydraulic Relief Valve ZDR10DA1-5X/210Y Pressure Rating Up To 5000 Psi

The pressure reducing valve is a valve that reduces the inlet pressure to a certain required outlet pressure by adjusting it, and relies on the energy of the medium itself to keep the outlet pressure stable automatically. From the fluid mechanics point of view, the pressure reducing valve is a local resistance can change the throttling element, that is, by changing the throttling area, the flow rate and the kinetic energy of the fluid change, resulting in different pressure losses, so as to achieve the purpose of decompression.

Pressure reducing valve according to the structure can be divided into film type, piston type, bellows type, etc., according to the working mode can be divided into positive action type, reaction type, unloading type and auxiliary valve type. The role of the pressure reducing valve is to reduce the pressure of a branch of the hydraulic system, so that it is lower than the oil supply pressure of the hydraulic pump, to meet the needs of the actuator (such as clamping, positioning oil, braking, clutch oil, system control oil, etc.), and to keep the pressure basically constant.