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The ZDR6DP2-4X/75YMV pressure reducing valve belongs to the ZDR Pressure Reducing Valves series and is manufactured by Bosch Rexroth for hydraulic automation circuits that require stable downstream pressure. It mounts as a sandwich plate, employs Nominal Size 6, and matches the CETOP D03 interface so it aligns with the ISO 4401-03-02-0-05 porting pattern. Four ports route the main flow and pilot passages, and the reduction function acts on channel P to hold a controlled outlet pressure. An internal pilot supply draws from the inlet flow, while the pilot oil returns externally to tank to keep cavity pressure low. Pressure is set through a sleeve with a hexagon under a protective cap, which permits secure adjustment once the desired value is established.
The valve limits secondary pressure to 75 bar and tolerates inlet pressures up to 350 bar, enabling safe operation in medium-pressure manifolds. It handles a maximum flow of 50 l/min without loss of regulation accuracy, and back pressure at port T(y) can rise to 160 bar before affecting performance. FKM seals withstand common hydraulic fluids and elevated temperatures, supporting long service life. The assembly weighs 1.440 kg, allowing straightforward handling during manifold installation.
Adjustment Type
Sleeve With Hexagon (Protective Cap)
Cetop Size
D03
Connection Type
Sandwich Plate
Max Counter Pressure (port T(y))
160 bar
Max Flow
50 l/min
Max Operating Pressure
350 bar
Nominal Size
6
Number Of Ports
4
Pilot Return
External
Pilot Supply
Internal
Porting Pattern
ISO 4401-03-02-0-05
Reduction Channel
P
Seal Material
FKM
Secondary Pressure Stage
75 bar
Weight
1.440 kg
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