Bosch Rexroth | ZDR6DA2-4X150YV12
ZDR6DA2-4X/150YV/12
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The ZDR6DA2-4X/150YV/12 valve belongs to the ZDR Pressure Reducing Valves series manufactured by Bosch Rexroth. It is a direct-operated pressure reducing unit designed to keep a stable downstream pressure in hydraulic automation circuits. The nominal size 6 matches compact subplate installations, while the component series 4X denotes the current design generation. Pressure is reduced in channel A so that the secondary line does not exceed 150 bar during normal service. The housing tolerates up to 315 bar of system pressure and up to 160 bar of counter pressure, preventing damage when flow reverses. A maximum flow of 50 l/min allows the valve to serve medium-capacity actuators. Pressure is set with a sleeve featuring a hexagon head and protective cap, enabling safe adjustment without exposing the spring chamber to contaminants.
For circuit integration, pilot oil is taken internally and returned externally, which simplifies supply while allowing separate tank lines for cooler operation. An integrated check valve permits unrestricted reverse flow so actuators can retract without increased throttle losses. The porting pattern follows ISO 4401-03-02-0-05, ensuring compatibility with standard CETOP 3 subplates, and four M5 mounting screws of grade ISO 4762-10.9 secure the body against the manifold. FKM seals resist high-temperature hydraulic fluids and maintain leakage control. The assembled valve weighs 1.2 kg, so handling and plate mounting can be done without lifting equipment and with minimal stress on compact manifolds.
Technical Specifications
Adjustment Type
Sleeve With Hexagon And Protective Cap
Check Valve
With Check Valve
Component Series
4X
Max Counter Pressure (t(y))
160 bar
Max Flow
50 l/min
Max Operating Pressure
315 bar
Mounting Screws
4x M5 (ISO 4762-10.9)
Pilot Oil
Internal Supply, External Return
Porting Pattern
ISO 4401-03-02-0-05
Pressure Reduction Channel
A
Seal Material
FKM
Secondary Pressure Max
150 bar
Size
6
Valve Type
Direct-Operated Pressure Reducing
Weight
1.2 kg
1620 Old Apex Road
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