Bosch Rexroth | ZDR10DA1-5X75Y5
ZDR10DA1-5X/75Y/5
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The ZDR10DA1-5X/75Y/5 valve is produced by Bosch Rexroth as part of the ZDR Pressure Reducing Valves series for hydraulic automation where stable secondary pressure is required. Its nominal size of 10 accommodates medium flow applications in modular manifolds, and a rotary knob lets maintenance staff adjust the set point without tools. The unit limits the secondary circuit to 75 bar, using an internal pilot oil supply to sense inlet pressure while sending pilot flow back to tank through an external line. An integrated check valve permits free reverse flow when downstream pressure exceeds the setting, and reduction occurs at port A so circuit designers know exactly where controlled pressure is available. A dedicated pressure gauge port is included for direct measurement during commissioning.
The valve tolerates a maximum inlet pressure of 315 bar and accepts up to 80 l/min, so it suits pumps commonly found in industrial machines. Back pressure at the tank port can reach 160 bar without affecting operation, making the device suitable for circuits with elevated return lines. A sandwich plate construction mates with manifolds built to the ISO 4401-05-04-0-05 interface, allowing quick installation between directional valves. NBR seals resist standard mineral hydraulic oils and keep leakage low. Overall weight is 2.8 kg for straightforward handling during assembly, and the required oil cleanliness of ISO 4406 20/18/15 helps maintain reliable spool movement under continuous duty.
Technical Specifications
Adjustment Type
Rotary Knob
Check Valve
Included
Cleanliness Class
ISO 4406 20/18/15
Max Flow
80 l/min
Max Inlet Pressure
315 bar
Max Tank Port Pressure
160 bar
Mounting Interface
ISO 4401-05-04-0-05
Mounting Type
Sandwich Plate
Nominal Size
10
Pilot Oil Return
External
Pilot Oil Supply
Internal
Pressure Gauge Port
Yes
Pressure Reduction Port
A
Seal Material
NBR
Secondary Pressure Rating
75 bar
Weight
2.8 kg
1620 Old Apex Road
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