4WRZE25W8-220-7X/6EG24N9ETK31/A1D3V

The 4WRZE25W8-220-7X/6EG24N9ETK31/A1D3V is a proportional directional valve manufactured by Bosch Rexroth in the WRZ Proportional Directional Valves series. It meters hydraulic flow and directs fluid paths in automated actuators that require continuously variable control. The valve is built in nominal size 25 so it fits circuits designed for medium-frame manifolds. A W8 spool is installed to define the flow passage geometry and response profile. Under a differential pressure of 10 bar the valve passes a nominal flow of 220 l/min, allowing rapid cylinder movements in press or molding equipment. The housing withstands operating pressures up to 350 bar, supporting high-force drives without external boosters. Electrical actuation accepts a ±10 V command signal, enabling direct interface with common motion controllers. A 24 V DC supply powers the integrated electronics and magnetics, while coil current is limited to 2.5 A to protect windings. Continuous operation is permitted because the design is rated for a 100 percent duty cycle.

For cabinet integration the coil uses a DIN EN 175201-804 connector, streamlining wiring alongside other industrial components. A concealed manual override is provided so maintenance staff can shift the spool during commissioning without disturbing the feedback loop. Both pilot oil supply and pilot oil drain are internal, eliminating external hoses and simplifying manifold layouts. System stability is enhanced by the factory-matched pressure reducing valve ZDR 6 DP0-4X/40YM-W80, which delivers a constant pilot pressure to the control stage. The valve can operate with coil temperatures up to 150 °C, maintaining performance in high-ambient or elevated oil-temperature conditions. FKM seals are fitted to resist aggressive hydraulic fluids and elevated heat. An IP65 protection rating guards the electrical section against dust ingress and water jets encountered in wash-down zones. These features combine to deliver a compact, reliable metering element for closed-loop hydraulic automation.