4WRZE25E325-7X/6EG24N9EK31/A1D3M

The 4WRZE25E325-7X/6EG24N9EK31/A1D3M valve belongs to the WRZ Proportional Directional Valves series and is produced by Bosch Rexroth for closed-loop hydraulic automation. It accepts a supply voltage of 24 VDC so that standard machine control power rails can energize the solenoids. The command input range of ±10 V matches common analog controllers and allows proportional spool positioning. A cold coil resistance of 2 Ω defines current draw for drive electronics, while a 100 % duty cycle permits continuous energization without scheduled cooling pauses. The concealed manual override lets maintenance personnel shift the spool mechanically without exposing moving parts to contamination. Wiring is completed through a connector conforming to DIN EN 175201-804 which standardizes pin assignments across Rexroth valve families. An IP65 rating seals the housing against dust and low-pressure water jets for reliable operation in industrial environments. The coil insulation endures up to 150 °C, preventing thermal damage under prolonged electrical load.

The valve delivers a nominal flow of 325 l/min at a 10 bar differential pressure, providing high volume throughput for large actuators. It withstands operating pressures up to 350 bar so that systems can employ elevated supply lines without risking body deformation. Internal or external pilot oil options give designers flexibility in selecting pressure reference points for the control stage. An integrated pressure-reducing valve stabilizes pilot pressure and maintains consistent metering behavior. Hysteresis not exceeding 6 % limits position error when command signals reverse direction, improving repeatability in servo circuits. NBR seals are fitted to resist common hydraulic oils and simplify replacement schedules. The ISO 4401-08-07-0-94 mounting pattern enables direct stacking on standardized subplates, shortening assembly time. A mass of 18.4 kg adds inertia that dampens vibration once the valve is bolted in place.