DIRECTIONAL SPOOL VALVE 4WE10G5X/EW120N9K4/M

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The Bosch Rexroth 4WE10G5X/EW120N9K4/M (R901487100) is a high-performance directional spool valve designed for controlling the start, stop, and direction of fluid flow in hydraulic systems. The valve features a robust housing, one or two high-power electronic solenoids, a control spool, and return springs. The solenoids are wet-pin electronic types that facilitate reliable operation when energized, moving the control spool to its required position and thereby allowing fluid to flow according to the selected symbol. This model includes manual override functionality that permits manual actuation of the valve without electrical power. It is crucial for users to ensure that the solenoid's pressure chamber is filled with oil for correct functioning. The 4WE10G5X/EW120N9K4/M valve can be fitted with a throttle insert (Type B..) in various channels to increase flow resistance when necessary due to operating conditions. The valve operates without spring return in its default state for symbols A, C, and D configurations. This means there is no defined basic position when de-energized. There is also an option (Type .WE ..OF) for versions with detent that lock the control spool in place, allowing energy-efficient operation by eliminating the need for continuous current application. The model adheres to ISO porting pattern standards and offers flexibility through its rotatable high-power solenoid. Electrical connections can be made individually or centrally, with options for PWM connectors or fast switching amplifiers. It supports energy reduction measures and has optional auxiliary operating devices. For safety and compliance, this directional valve meets CE conformity under the Low-Voltage Directive EC for electrical voltages greater than 50 VAC or 75 VDC. Additionally, it includes a solenoid coil with UR approval and an optional UL recognition under Approval according to CSA C22.2 No. 139.