ZDR6DP2-4X/75YMV/12

The ZDR6DP2-4X/75YMV/12 pressure reducing valve belongs to the ZDR Pressure Reducing Valves series and is manufactured by Bosch Rexroth for hydraulic automation circuits where a stable downstream pressure is required. It has a nominal size of 6, allowing space-saving installation in small manifolds. The valve mounts as a sandwich plate, so it can be stacked between a subplate and a directional valve without additional piping. Its ISO 4401-03-02-0-05 mounting pattern aligns the ports with standard CETOP 03 layouts, simplifying interchangeability. The unit accepts mineral oil classified as HL or HLP, making it compatible with common system fluids. Secondary pressure is preset to 75 bar to protect sensitive actuators from excess load. Pressure is reduced in port P, directing the regulated flow to the working line. Pilot oil is taken internally with an external drain, which enables pressure control unaffected by tank back-pressure. Adjustment is made through a sleeve with a hexagon so technicians can fine-tune the setpoint with a wrench. The design contains no check valve, which keeps the flow path simple and minimizes pressure loss.

Maximum operating pressure of 350 bar on the inlet side lets the valve function in high-pressure supply lines, while a flow capacity of 50 L/min supports medium-sized actuation tasks. Port T (y) withstands up to 160 bar, permitting external drain routing to elevated tank pressures. The valve may be installed in any orientation, which eases placement in crowded power units and cuts assembly time. FKM seals resist standard mineral oil and maintain tightness under elevated temperature and pressure cycles. A cleanliness level of ISO 4406 20/18/15 restricts solid contamination to protect the throttling elements from wear. Taken together, these limits and materials maintain reliable pressure reduction across varied operating conditions without adding complex auxiliary components.