DIRECTIONAL SPOOL VALVE 4WE10R5X/EW120N9K4/V

***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 4WE10R5X/EW120N9K4/V (R901487129) is a high-performance solenoid-actuated directional spool valve designed for controlling the start, stop, and direction of fluid flow within hydraulic systems. This particular model features a robust housing, one or two high-power electronic solenoids, a control spool, and return springs to ensure reliable operation. In its default state, the control spool is held in either a central or initial position by the return springs except for specific versions without spring return. Upon energizing the wet-pin electronic solenoid, the spool shifts from its rest position to an end position, allowing fluid flow as per the selected configuration. The valve is equipped with manual override capabilities to facilitate manual operation without solenoid actuation. It's essential that the pressure chamber of the solenoid is filled with oil for proper functionality. The 4WE10 series can be fitted with throttle inserts in channels P, A, B, or T to manage flow resistance when operational conditions exceed the valve's performance limit. This model supports configurations without spring return (type O) only with symbols A, C and D and also comes in versions with detent (type OF), locking the control spool in place during operation for energy efficiency. However, it's advised to use separate return lines or install a check valve to mitigate pressure peaks that might cause unintended spool movements. The 4WE10R5X/EW120N9K4/V valve offers versatility with its 3 or 4-way version porting pattern according to ISO standards. The electronic connection can be individual or central and may include features such as PWM connectors for fast switching amplifiers and energy reduction options. For safety compliance, it meets CE conformity under the Low-Voltage Directive EC for electrical voltages greater than 50VAC or 75VDC and includes UL recognition as well as optional CSA approval.