4WRZ32E520-7X/6EG24N9ETK4/D3V

The 4WRZ32E520-7X/6EG24N9ETK4/D3V valve is manufactured by Bosch Rexroth for the WRZ Proportional Directional Valves series. It directs hydraulic fluid in automated cylinders and actuators where proportional control is required. The unit is built in size 32, providing large flow paths suited for high-throughput systems. A porting pattern compliant with ISO 4401-10-08-0-94 eases mounting on standardized sub-plates for quick replacement. Its nominal flow reaches 520 l/min at a 10 bar differential, allowing rapid actuator movement under moderate pressure drops. The maximum operating pressure of 350 bar makes the valve compatible with high-pressure circuits common in presses and injection molding equipment. Pilot oil is internally supplied and drained, removing external pilot lines and simplifying plumbing. A 3DREP 6 pilot valve generates the proportional control signal, while a D3 pressure reducing valve stabilizes pilot pressure to maintain consistent spool positioning.

For electrical actuation, the solenoid operates on 24 VDC, and the coil resistance at 20 °C is 4.8 Ω, a combination that limits inrush current and matches standard machine power supplies. Continuous service is supported by a 100 percent duty cycle, so the valve can remain energized without rest periods. The coil draws a maximum of 1.5 A, which helps designers size power distribution hardware accurately. A DIN EN 175301-803 plug forms the electrical connection, enabling fast field wiring to existing harnesses. With a protection class of IP65 when the mating socket is fitted, the enclosure withstands dust and low-pressure water jets typical of industrial wash-down areas. FKM seals resist common hydraulic oils and elevated temperatures, extending service life in demanding environments. The return port tolerates up to 30 bar internally, allowing back-pressure in long lines without affecting function, and the complete assembly weighs 42.2 kg, a figure relevant for manifold and support structure sizing.