4WRZE25E325-7X/6EG24N9ETK31/F1D3V

The 4WRZE25E325-7X/6EG24N9ETK31/F1D3V proportional directional valve belongs to the WRZ Proportional Directional Valves series and is manufactured by Bosch Rexroth. It modulates flow and pressure to automate hydraulic cylinders and motors in closed-loop control systems. The valve follows the ISO 4401-08-07-0-94 mounting pattern, enabling direct installation on sub-plates that share this interface. At a pressure drop of 10 bar, it delivers a nominal flow of 325 l/min, allowing fast actuator movement in medium to large machines. The main stage withstands system pressures up to 350 bar, while pilot functions are handled by a size 6 valve with internal supply and drain lines to simplify external piping. Electrical actuation uses a 24 V DC supply and accepts a 4 to 20 mA command signal identified as interface F1. During peak demand the electronics draw no more than 1.8 A, and connection is made through a plug designed to DIN EN 175201-804.

Environmental protection is rated at IP65 so the enclosure resists dust ingress and low-pressure water jets common in industrial plants, allowing the solenoid assembly to work in wash-down zones without extra covers. Feedback accuracy is supported by hysteresis not exceeding 6 percent, which maintains repeatable spool positioning during small signal changes and avoids drift during long cycles. A concealed manual override lets maintenance staff shift the spool mechanically without disturbing the coil wiring. The hydraulic section is designed for mineral oil fluids classified as HL or HLP, and a fluoroelastomer (FKM) seal package is fitted for compatibility with these media at elevated temperatures and pressures. Port T tolerates a continuous internal back-pressure of 30 bar, and a pressure reducing cartridge type ZDR 6 DP0-4X/40YM-W80 is integrated to stabilize pilot supply pressure under varying loads. These elements give the valve consistent performance in closed-loop directional control duties throughout heavy-duty automation equipment.