Bosch Rexroth | ZDR10VP5-3X100YM12
ZDR10VP5-3X/100YM/12
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The ZDR10VP5-3X/100YM/12 pressure reducing valve belongs to the ZDR Pressure Reducing Valves series from Bosch Rexroth and is used to stabilize downstream pressure in hydraulic automation circuits. It is actuated mechanically so no solenoid or pilot line shift is needed during operation. A sandwich plate connection type allows the valve to be stacked between subplates and directional valves, and the ISO 4401-05-04-0-05 porting pattern keeps mounting dimensions consistent with common manifolds. SAE threaded ports simplify hose or tube attachment while the nominal size 10 flow paths and NFPA D05 interface match mid-range system sizes. The unit provides two switching positions so the spool can move between open and regulated states, and the P2→P1 spool symbol identifies flow from the secondary port back to the primary passage when pressure falls below the set point. Five working ports route pressure, tank, and pilot lines through the body to support complex control schemes.
The valve limits flow to 100 l/min so circuit designers can size pumps and lines for stable regulation without excessive pressure drops. A maximum operating pressure of 315 bar protects the housing and internals from overload in high-pressure supply systems, while the adjustable spring stack allows a maximum set pressure of 100 bar to define the regulated outlet level. Pilot oil is supplied internally, eliminating an external feed line, and the pilot oil returns externally so tank line back-pressure does not influence accuracy. NBR seals withstand standard hydraulic oils and maintain leak-tight joints across the temperature range typically found in machinery. There is no integral check valve, so reverse flow must be handled by other components when required.
Technical Specifications
Actuation
Mechanical
Check Valve
None
Connection Thread
SAE
Connection Type
Sandwich Plate
Max Flow
100 l/min
Max Operating Pressure
315 bar
Max Set Pressure
100 bar
Nfpa Size
D05
Nominal Size (ng)
10
Number Of Ports
5
Pilot Oil Return
External
Pilot Oil Supply
Internal
Porting Pattern
ISO 4401-05-04-0-05
Seal Material
NBR
Spool Symbol
P2→P1
Switching Positions
2
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