Bosch Rexroth | ZDR10DB2-5X210YM12
ZDR10DB2-5X/210YM/12
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The ZDR10DB2-5X/210YM/12 pressure reducing valve is produced by Bosch Rexroth for the ZDR Pressure Reducing Valves series and is intended to hold a controlled downstream pressure in hydraulic automation systems. The nominal size of 10 defines the flow cross-section and aligns with medium-capacity manifolds, while the sandwich plate connection lets the unit be inserted between standard subplates without additional piping. Its ISO 4401-05-04-0-05 porting pattern matches common CETOP 5 interfaces, and pressure reduction takes place in channel P so designers can predict where the restricted flow enters the circuit. Mechanical actuation removes the need for electrical pilot components, and the sleeve with a hexagon and protective cap provides a manual adjustment point while preventing accidental tampering. Pilot oil is taken internally from the supply line, routed from channel B, and returned externally to the tank so pilot flow does not raise case pressure. The secondary pressure can be set up to 210 bar, giving the user a firm upper limit for downstream loads.
Inlet conditions are limited to a maximum operating pressure of 315 bar, enabling use on high-pressure pumps without overstressing the housing, and a maximum counter pressure of 160 bar at the return line ensures reliable closure of the pilot stage when backpressure is present. The valve can pass up to 80 l/min, providing adequate flow for actuators that demand moderate volume. ISO 4762 M6 class 10.9 screws are specified for mounting, guaranteeing sufficient clamping force in stacked assemblies, and a G1/4 pressure gauge port with 12 mm depth is provided so service personnel can verify the reduced pressure during setup. Because no integrated check valve is present, reverse flow must be handled by separate components.
Technical Specifications
Actuation
Mechanical
Adjustment Type
Sleeve With Hexagon And Protective Cap
Check Valve
None
Connection Type
Sandwich Plate
Maximum Counter Pressure (t)
160 bar
Maximum Flow
80 l/min
Maximum Operating Pressure
315 bar
Mounting Screws
ISO 4762 M6 (10.9)
Nominal Size
10
Pilot Oil Return
External
Pilot Oil Source
Channel B
Pilot Oil Supply
Internal
Porting Pattern
ISO 4401-05-04-0-05
Pressure Gauge Port
G1/4 (12 mm deep)
Pressure Reduction Channel
P
Secondary Pressure Rating
210 bar
1620 Old Apex Road
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