4WRZE32EB520-7X/6EG24N9TK31/A1D3M

The 4WRZE32EB520-7X/6EG24N9TK31/A1D3M valve is manufactured by Bosch Rexroth for the WRZ Proportional Directional Valves series. It regulates hydraulic actuators by varying spool position according to an electrical reference, providing precise motion control in industrial automation. A valve size of 32 provides large flow paths suited to high-power circuits, while a nominal flow of 520 l/min at a 10 bar differential supports quick cylinder or motor response. The main stage tolerates operating pressure up to 350 bar, so the unit can be placed in systems with elevated supply lines. Electrical modulation is achieved with a ±10 V command signal, allowing symmetrical control around a neutral position. Coil energization is based on a 24 V DC supply, and a maximum coil current of 2.5 A limits driver requirements and prevents overheating. The DIN EN 175201-804 connector simplifies wiring and preserves pin compatibility across Rexroth components. When needed, a concealed manual override lets maintenance staff move the spool without energizing the coil, while an IP65 housing rating keeps dust and water jets from impairing the electronics.

For pilot stages, the valve uses external oil supply with an internal drain, reducing heat input into the main return line and easing installation by eliminating a separate drain hose. The mounting face follows the ISO 4401-10-08-0-94 porting pattern, so the block can drop onto standard manifolds without additional machining. Port T may see pressures to 150 bar and port Y up to 30 bar, enabling compatibility with back-pressurized tank circuits and low-pressure drains respectively. Downstream stability is enhanced by the integrated ZDR 6 DP0-4X/40YM-W80 pressure reducing valve, which keeps pilot flow at a constant level for repeatable spool positioning. NBR seals are fitted to resist common mineral oils and to retain elasticity over the working temperature range. A mass of 42.2 kg adds inertial stability on the manifold and minimizes vibration under high flow conditions. Together, these construction details confirm suitability for closed-loop servo tasks where external pilot supply, standardized installation, and balanced port pressures are necessary for precise actuator control.