4WRA6W30-2X/G24N9K4/V

The 4WRA6W30-2X/G24N9K4/V proportional directional valve is manufactured by Bosch Rexroth within the 4WRA Proportional Directional Valves series. It modulates flow and direction in hydraulic automation systems that require smooth, electrically controlled movement. A nominal size of 6 matches compact hydraulic manifolds and balances flow capability with small envelope dimensions. The ISO 4401-03-02-0-05 porting pattern maintains interchangeability with standard subplates, while the dedicated subplate mounting style speeds replacement during service. Each port bore is 8 mm, defining the internal flow passages and influencing pressure drop. A maximum flow of 42 l/min supports medium-capacity actuators, and the rated flow of 26 l/min at a 5 bar pressure drop per edge provides the reference point for proportional performance. The valve withstands operating pressures up to 350 bar on pressure, supply, and work ports, and its 24 V DC solenoid accepts common machine control power supplies.

An ingress protection rating of IP65 shields the housing from dust ingress and low-pressure water jets so it can be mounted near machinery wash-down zones. The required fluid cleanliness of 20/18/15 per ISO 4406 limits particulate contamination that could affect spool positioning. Because the installation position can be any, designers have freedom to orient the body without affecting function. A concealed manual override permits local shifting when electrical power is absent while reducing the risk of accidental activation. The tank port tolerates pressures up to 210 bar, setting the safe limit for return-line back-pressure in high-duty cycles. A maximum surface temperature of 150 °C allows operation with hot oil or in elevated ambient conditions. FKM seals are used to retain hydraulic fluid and resist heat and chemical attack, and the total mass of 2.0 kg enables straightforward handling during assembly.