Bosch Rexroth | ZDR10DA1-5X210Y12
ZDR10DA1-5X/210Y/12
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The ZDR10DA1-5X/210Y/12 valve belongs to the ZDR Pressure Reducing Valves series manufactured by Bosch Rexroth and is applied to limit downstream pressure in hydraulic automation circuits. It is produced in nominal size 10, providing passage dimensions suited to medium-capacity flow paths. A CETOP D05 mounting interface enables direct stacking on standardized subplates, while the ISO 4401-05-04-0-05 porting pattern ensures full face compatibility without adapters. The sandwich-plate construction lets the unit sit between directional valves and manifolds, and pressure is reduced specifically through channel A so only the selected service line is affected. Secondary pressure can be adjusted up to 210 bar to match actuator requirements, and a Type 1 rotary knob presents a simple manual setting method. The inlet side withstands 315 bar, giving ample margin between supply and controlled levels.
The valve accommodates a continuous flow of 80 l/min, making it suitable for pumps in the mid-range output category. Counter pressure at port T may reach 160 bar, and the internal design compensates for this backpressure to hold the reduced pressure steady. An integrated check valve allows free reverse flow, preventing trapped pressure on shutdown. Pilot oil is supplied internally, yet returned to tank externally to keep manifold heating low. A G1/4 gauge port, 12 mm deep, supports quick connection of diagnostic instruments during setup. NBR seals provide compatibility with standard mineral oils and maintain leak-tight operation. The assembly demands fluid cleanliness at ISO 4406 class 20/18/15 or better to avoid component wear.
Technical Specifications
Adjustment Type
Rotary Knob (Type 1)
Cetop Size
D05
Check Valve
Yes
Cleanliness Class
ISO 4406 20/18/15
Connection Type
Sandwich Plate
Counter Pressure (port T)
160 bar
Inlet Max Pressure
315 bar
Maximum Flow
80 l/min
Nominal Size
10
Pilot Oil Return
External
Pilot Oil Supply
Internal
Porting Pattern
ISO 4401-05-04-0-05
Pressure Gauge Port
G1/4 (12 mm deep)
Pressure Reduction Channel
A
Seals
NBR
Secondary Pressure Rating
210 bar
1620 Old Apex Road
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