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The ZDR10DP1-5X/75YM/12 valve is part of the ZDR Pressure Reducing Valves series from Bosch Rexroth and is applied in hydraulic automation to keep downstream pressure stable when supply pressure fluctuates. With a nominal size of 10, it fits circuits that use mid-range flow passages, while the sandwich plate connection lets it be stacked between other ISO modules without extra piping. The porting pattern ISO 4401-05-04-0-05 aligns the inlet, outlet, and pilot ports with standard subplates. Pressure is reduced in the P channel, as indicated by the reduction channel code, and the spool symbol P2→P1 shows the direction of controlled flow between the primary and secondary passages. Outlet pressure can be set up to 75 bar using a rotary knob, and a G1/4 gauge port is provided so technicians can verify the adjusted value during commissioning.
The pilot oil supply is internal, so control oil is taken directly from the inlet, but pilot oil is returned externally through the Y port to prevent back-pressure interference. Leakage oil is also routed externally on the TA port, keeping case pressure low and maintaining consistent response. The unit tolerates a maximum inlet pressure of 210 bar and passes up to 80 l/min, matching many medium-capacity power units. Because it is supplied without a check valve, reverse flow cannot pass through the module and must be handled elsewhere in the circuit. NBR seals are used to resist common petroleum-based fluids, and the assembly weighs 2.500 kg, allowing straightforward handling during manifold installation.
Adjustment Type
Rotary Knob
Check Valve
Without (M)
Connection Type
Sandwich Plate
Gauge Port
G1/4
Leakage Oil Drain
External (TA)
Max Flow
80 l/min
Max Operating Pressure
210 bar
Nominal Size
10
Pilot Oil Return
External (Y)
Pilot Oil Supply
Internal
Porting Pattern
ISO 4401-05-04-0-05
Pressure Rating
75 bar
Reduction Channel
P
Seals
NBR
Spool Symbol
P2→P1
Weight
2.500 kg
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