DIRECTIONAL SPOOL VALVE 4WE10EB5X/EW120N9K4/M

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth 4WE10EB5X/EW120N9K4/M (R901487095) is a high-performance directional spool valve designed for controlling the start, stop, and direction of fluid flow within a hydraulic system. This model features a robust housing, one or two high-power solenoids, a control spool, and return springs that ensure reliable operation. The solenoid-actuated valve operates by moving the control spool from its rest position into an end position when energized, allowing for precise flow direction as indicated by the selected symbol. The valve includes a manual override function that permits manual activation without solenoid power—a useful feature during system troubleshooting or emergencies. Additionally, it is equipped with throttle inserts that can be used in channels P, A, B or T to increase flow resistance and adapt to varying operational conditions that may exceed the valve's performance limits. This specific model is available in 3- or 4-way versions and conforms to ISO porting patterns. It offers electrical connections via individual or central connections and can be optionally used with PWM connectors for fast switching amplifiers or energy reduction purposes. The solenoid coils have UR approval (UL recognized) and there is also an option for CSA C22.2 No. 139 approval. For applications requiring energy-efficient operation without continuous current to maintain positions, this directional valve can come without spring return in the control spool (type O) for certain symbols (A, C and D), or with detents (type OF) to lock the control spool in place. It is important to note that pressure peaks in tank lines connected to multiple valves could cause unintended movements of the control spool; thus, separate return lines or check valves are recommended for systems using valves with detents. The valve's design allows it to function effectively with electrical voltages greater than 50 VAC or 75 VDC while maintaining CE conformity according to the Low-Voltage Directive EC.