4WRA10WA60-2X/G24N9K4/V

The 4WRA10WA60-2X/G24N9K4/V proportional directional valve belongs to the 4WRA Proportional Directional Valves series and is manufactured by Bosch Rexroth for closed-loop hydraulic automation. Its spool symbol WA defines the metering geometry that settles flow from pressure ports to the actuator in two switching positions, allowing directional control on demand. A nominal size of 10 matches moderate-capacity manifolds without excessive pressure loss, while a supply voltage of 24 V DC energizes each solenoid to move the spool. Coil resistance at 20 °C is specified at 2 Ω, so the electronics can predict current draw accurately. The maximum current per solenoid is limited to 2.5 A to protect the winding, and a 100 % duty cycle permits continuous modulation without mandatory cool-down intervals. An allowable coil temperature of 150 °C guards against thermal degradation during high ambient or overload conditions. Electrical termination follows EN 175301-803, giving users a standardized plug interface for quick installation and maintenance.

Hydraulic ratings begin with a maximum operating pressure of 315 bar at ports a, b, and p, enabling the valve to handle high-pressure pump circuits commonly found in industrial presses and injection machines. When the spool is fully shifted, permissible flow peaks at 75 l/min, while the nominal flow of 60 l/min at a 10 bar differential defines the point where control accuracy is optimized. The return port endures back-pressure up to 210 bar, so the t-line can share a common tank line exposed to significant counter-pressure. Mounting observes the ISO 4401-05-04-0-94 porting pattern, ensuring interchangeability with standard subplates. FKM seals resist mineral oils and many synthetic fluids, maintaining leak-tight operation over long service intervals. Fluid cleanliness must reach ISO 4406 20/18/15 to prevent spool wear and maintain proportional accuracy. Together these parameters allow the valve to modulate actuator speed and direction precisely within demanding hydraulic circuits.