4WRAE10W30-2X/G24N9K31/A1V

The 4WRAE10W30-2X/G24N9K31/A1V proportional directional valve is manufactured by Bosch Rexroth for the 4WRA Proportional Directional Valves series. It converts an electrical command into a controlled spool position so hydraulic actuators receive variable flow and pressure. The solenoid is supplied with 24 V DC, and its coil resistance of 2 Ω at 20 °C defines the base electrical load delivered by the drive electronics. A maximum solenoid current of 2.5 A protects the winding and stabilizes magnetic force over the stroke. The valve accepts a ±10 V command value (interface A1) that directly determines spool displacement and therefore output flow. Continuous service is supported by a 100 % duty cycle, allowing the unit to remain energized without cooling pauses. Electrical connection relies on a DIN EN 175201-804 plug coded K31, and when this connector is tightened the enclosure reaches protection class IP65, blocking contaminants and water jets. The assembly weighs 6.8 kg, which influences mounting rigidity and manual handling.

Nominal size 10 defines the internal passage dimensions, while the spool symbol W specifies the flow paths available when the solenoid is driven in either direction. The valve tolerates operating pressures up to 315 bar at ports A, B, and P, and the return port T is limited to 210 bar to safeguard the tank line. A maximum permissible flow of 75 l/min ensures low restriction under peak demand, whereas the nominal flow of 30 l/min at a 10 bar differential provides the reference point for proportional calibration. The manifold interface follows porting pattern 4401-05-04-0-94 so it seats correctly on matching subplates without additional adapters. FKM sealing elements resist common hydraulic oils and elevated temperatures, maintaining leak-free operation over long service intervals. Together these hydraulic characteristics complement the electrical data described earlier to provide stable, repeatable control in hydraulic automation.