Bosch Rexroth | ZDR10DA1-5X210Y5
ZDR10DA1-5X/210Y/5
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The ZDR10DA1-5X/210Y/5 pressure reducing valve belongs to the ZDR Pressure Reducing Valves series from Bosch Rexroth and maintains a stable downstream pressure in hydraulic automation circuits. Pressure adjustment is set with a rotary knob, enabling quick manual tuning during commissioning. It limits secondary pressure to 210 bar to protect delicate actuators from excessive load. The valve reduces pressure through channel A, routing flow from A2 to A1 when the setpoint is reached. Pilot oil is taken internally so no separate supply line is required, while the drain passes externally through port TA to avoid tank back-pressure influencing the setting. A built-in check valve allows free reverse flow, preserving bidirectional line functionality. It tolerates inlet pressures up to 315 bar and regulates flows as high as 80 l/min without losing stability.
The unit follows CETOP size D05 standards, and its mounting interface matches ISO 4401-05-04-0-05 for direct stacking on subplates. A nominal size 10 provides passage dimensions suited to medium flow machinery. Counter pressure on the downstream side may reach 160 bar without upsetting regulation accuracy. A G1/4 port is provided for a pressure gauge so technicians can verify the set value. NBR seals are fitted for compatibility with common mineral oils. Fluid entering the valve must meet ISO 4406 cleanliness level 20/18/15 to minimize wear on throttling edges. The assembly weighs 2.640 kg, allowing manual installation without lifting equipment.
Technical Specifications
Adjustment Type
Rotary Knob
Cetop Size
D05
Check Valve
Yes
Fluid Cleanliness Class
20/18/15 (ISO 4406)
Maximum Counter Pressure
160 bar
Maximum Flow
80 l/min
Maximum Inlet Pressure
315 bar
Mounting Interface
ISO 4401-05-04-0-05
Nominal Size
10
Pilot Oil Drain
External (TA)
Pilot Oil Supply
Internal
Pressure Gauge Port
G1/4
Reduction Channel
A (A2 to A1)
Seal Material
NBR
Secondary Pressure (max)
210 bar
Weight
2.640 kg
1620 Old Apex Road
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