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The ZDRY10VP5-1X/30YMV pressure reducing valve is made by Bosch Rexroth within the ZDR Pressure Reducing Valves series. It is a pilot-operated 3-way unit that limits pressure in hydraulic automation circuits. The nominal size 10 interface matches NG10 sandwich stacks so it can be integrated between standard manifold plates. A sandwich plate mounting format supports compact stacking with other directional or flow controls. Pressure is reduced in port P, allowing the downstream branch to stay below the specified limit. The secondary pressure rating is 30 bar establishes the maximum controlled outlet pressure. A hex socket with a protective cap serves as the adjustment element so technicians can set the desired level while keeping the screw covered in service. The valve tolerates a maximum inlet pressure of 315 bar, letting it work on high-pressure supply lines without damage.
Internal pilot supply with external oil return separates sensing from discharge and simplifies circuit routing. Back pressure up to 160 bar at ports Ta or Tb can be present without affecting regulation. The design accepts a flow rate to 120 l/min, which defines the volume it can regulate without excessive pressure drop. A viscosity range of 10 to 800 mm²/s keeps performance stable across different oil grades. Acceptable hydraulic fluid temperature spans −20 to 80 °C when used with FKM seals, and the FKM material resists common fluid additives at those temperatures. No check valve is fitted, which reduces complexity and size for applications that already include external reverse-flow devices. The assembled unit weighs 2.3 kg, making manual installation feasible inside stacked valve assemblies.
Adjustment Element
Hex Socket With Protective Cap
Back Pressure (port Ta/tb)
160 bar
Check Valve
None (M)
Hydraulic Fluid Temperature (fkm)
-20 to +80 °C
Max Flow
120 l/min
Max Inlet Pressure
315 bar
Mounting Type
Sandwich Plate
Nominal Size
10 (NG10)
Operation Type
Pilot-Operated
Pilot Oil Configuration
Internal Supply/External Return
Pressure Reduction Port
P
Seal Material
FKM (V)
Secondary Pressure Rating
30 bar
Valve Type
3-Way Pressure Reducing Valve
Viscosity Range
10 to 800 mm²/s
Weight
2.3 kg
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