Bosch Rexroth | ZDR10DA2-5X25Y
ZDR10DA2-5X/25Y
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The ZDR10DA2-5X/25Y pressure reducing valve belongs to the ZDR Pressure Reducing Valves series and is manufactured by Bosch Rexroth for hydraulic automation systems that require controlled downstream pressure. It regulates fluid at port A to a secondary limit of 25 bar and accommodates a nominal size of 10 for medium-flow circuits. Pressure is adjusted with a sleeve that has a hexagon and a protective cap, and pilot oil is supplied internally while draining externally to keep tank pressure from influencing the setting. There is an integrated check valve that allows unrestricted reverse flow. The assembly withstands input pressure up to 315 bar and handles a maximum flow rate of 80 l/min without exceeding its rating.
The valve is a sandwich plate design that follows the ISO 4401-05-04-0-05 mounting pattern and is fastened with four M6 ISO 4762 grade 10.9 screws. Backpressure at port T can reach 160 bar without affecting regulation accuracy, and operating fluid viscosity may vary between 10 mm²/s and 800 mm²/s. A G1/4 pressure gauge port, drilled 12 mm deep, is provided for system monitoring, and NBR seals are used to contain mineral-oil-based media. These features allow the component to integrate cleanly into stacked manifold arrangements while maintaining stable performance across its specified flow and pressure limits.
Technical Specifications
Adjustment Type
Sleeve With Hexagon And Protective Cap
Integrated Check Valve
Yes
Max Backpressure (port T)
160 bar
Max Flow
80 l/min
Max Input Pressure
315 bar
Mounting Pattern
ISO 4401-05-04-0-05
Mounting Screws
4× M6 ISO 4762 (10.9)
Mounting Type
Sandwich Plate
Nominal Size
10
Pilot Oil
Internal Supply, External Drain
Pressure Gauge Port
G1/4 (12 mm Deep)
Pressure Reduction Port
A
Seals
NBR
Secondary Pressure (max)
25 bar
Viscosity Maximum
800 mm²/s
Viscosity Minimum
10 mm²/s
1620 Old Apex Road
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