Bosch Rexroth | 4WRZ25W6-220-7X6EG24N9EK4D3V
4WRZ25W6-220-7X/6EG24N9EK4/D3V
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The 4WRZ25W6-220-7X/6EG24N9EK4/D3V proportional directional valve is produced by Bosch Rexroth within the WRZ Proportional Directional Valves series for closed-loop hydraulic automation. The valve employs a size 25 body and a W6 spool so that metering edges respond predictably to command current. A nominal flow of 220 l/min at a 10 bar pressure drop supports steady actuator motion, while the main stage accepts up to 870 l/min to handle rapid moves or large cylinders. The assembly tolerates 350 bar in the main flow path, allowing use in high-pressure circuits. Its internal pilot oil supply removes the need for external pilot hoses, and the ISO 4401-08-07-0-94 mounting pattern permits direct installation on standardized subplates. Port A, B, and T bores measure 25 mm, whereas the P port is 24 mm, matching common manifold drillings for this frame size.
Electronic actuation runs on a 24 V DC supply, and the coil terminals fit a connector built to DIN EN 175301-803, simplifying field wiring. An IP65 enclosure rating keeps dust and water jets away from the solenoid and position sensor. A concealed manual override permits mechanical shifting during setup or emergencies without exposing the operator to moving parts. Pilot pressure is stabilized by the integrated ZDR 6 DP0-4X/40YM-W80 pressure reducing valve, which improves spool positioning accuracy under fluctuating supply conditions. The external drain line can return oil at pressures up to 250 bar without disturbing control performance. FKM seals withstand high temperature and aggressive fluids, extending service intervals. Together, these features provide a proportional valve capable of precise flow direction and pressure control in demanding industrial machinery.
Technical Specifications
Electrical Connection
DIN EN 175301-803
Manual Override
Concealed
Max Flow (main Valve)
870 l/min
Max Operating Pressure (main)
350 bar
Mounting Pattern
ISO 4401-08-07-0-94
Nominal Flow (Δp = 10 Bar)
220 l/min
Pilot Oil Supply
Internal
Port A/b/t Bore
Ø25 mm
Port P Bore
Ø24 mm
Pressure Reducing Valve
ZDR 6 DP0-4X/40YM-W80
Return Port Pressure (external Drain)
250 bar
Seal Material
FKM
Spool Type
W6
Supply Voltage
24 V DC
Type Of Protection
IP65
Valve Size
25
1620 Old Apex Road
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