4WRPNH6C3B40L-2X/M/24PF6G

The 4WRPNH6C3B40L-2X/M/24PF6G proportional solenoid valve from Bosch Rexroth belongs to the 4WRP Solenoid Valves series and regulates hydraulic flow and pressure in automated actuation circuits. With a nominal size of 6 (NG6), it fits standard subplates while keeping installation space low. A rated flow of 40 l/min at a differential pressure of 35 bar per edge allows medium-capacity actuators to move at controlled speeds. The linear flow characteristic simplifies tuning because spool travel results in a proportional change in flow. The valve tolerates operating pressures of up to 315 bar on the service ports and 250 bar on the tank port, enabling use on high-pressure machines without additional relief devices. A 4–20 mA command interface sets spool position, so standard current controllers can drive the unit. The nominal supply voltage is 24 V DC, matching common power rails in mobile or stationary equipment and keeping coil heating within limits.

Digital feedback and communication are provided through a PROFIBUS DP/V2 fieldbus, allowing the valve to be integrated into centralized motion controllers. Two M12-5 connectors, labeled X4 and X7, output 4–20 mA position signals that verify actual spool displacement for closed-loop systems. When the connectors are mated, the housing achieves an IP65 rating, protecting internal electronics from dust and low-pressure water jets encountered in factory environments. Reliable start-up is guaranteed between 21 V DC and 36 V DC, so the electronics remain functional during supply dips or surges. Maximum power consumption is limited to 40 W on the NG6 platform, keeping cabinet thermal loads modest. The valve works in ambient temperatures from −20 °C to +50 °C, covering cold start conditions and elevated machine room heat without additional conditioning. Together, these features allow the valve to maintain precise hydraulic control while withstanding electrical, thermal, and environmental stresses common in industrial automation.