4WRAB6W25-1X/G24N9DA/MR

The 4WRAB6W25-1X/G24N9DA/MR proportional directional valve is part of the 4WRA Proportional Directional Valves series manufactured by Bosch Rexroth. It modulates hydraulic flow and direction for automation circuits that require continuously variable control. The valve uses nominal size 6 cavities so it fits compact manifolds and reduces installation footprint. A porting pattern that follows ISO 4401-3 (NFPA D03) ensures interchangeability with standard subplates. The subplate mounting style allows quick removal for service without disturbing pipework. During operation it delivers a nominal flow of 25 l/min for routine actuator movements, while a maximum flow capacity of 30 l/min provides reserve for peak demand. The W-coded spool profile generates symmetrical metering areas for bi-directional motion. Hydraulic passages at the P, A, and B ports sustain pressures up to 350 bar, and the T port tolerates 210 bar, enabling the valve to handle high-pressure circuits in presses or injection machines.

The solenoid circuit is supplied with 24 V DC and accepts a ±10 % tolerance, permitting stable performance on typical machine power rails. A peak current limit of 1.25 A protects the coil from overheating, while a coil resistance of 19.2 Ω at 20 °C establishes the expected power draw. These values correspond to a maximum electrical power consumption of 30 W, matching common control cabinet ratings. Protection against dust and water jets is provided by an IP65 enclosure, allowing the valve to be mounted on equipment exposed to wash-down conditions. Electrical leads enter through a terminal box with a ½-inch NPT conduit entry, simplifying field wiring. A covered manual override designated N9 lets technicians shift the spool during commissioning without energizing the solenoid. Sealing surfaces utilize NBR material, coded MR, so the valve remains compatible with standard mineral oils used in industrial hydraulics.