4WEH 10 HD4X/OF6EG24N9ETK4

***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 4WEH 10 HD4X/OF6EG24N9ETK4 (R900929200) is a high-performance directional spool valve designed for electrohydraulic actuation. This model is adept at managing the start, stop, and direction of fluid flow within hydraulic systems. The valve features a robust main valve with housing, a control spool, return springs, and a pilot control valve equipped with solenoids for precise operation. The main control spool is maintained in its initial position either by the springs or through pressurization and can be manually overridden if needed. The 4WEH 10 HD4X/OF6EG24N9ETK4 valve operates by shifting the main control spool via pilot pressure which is supplied either internally or externally through port X. When the pilot control valve is activated by solenoid 'a', for instance, it pressurizes one side of the spring chamber to move the spool and connect ports within the main valve, allowing for flow direction changes. Upon deactivation, internal or external channels facilitate the return of pilot oil. This model also includes features to accommodate various operational needs such as throttle inserts for regulating pilot oil supply and options for internal or external pilot oil supply and return configurations. It supports subplate mounting with porting patterns that comply with ISO standards in both 3-way and 4-way versions. Additional options available with this model include manual override capability, switching time adjustment, preload valves in channel P of the main valve, stroke setting, and spool position monitoring. The actuation can be tailored to specific requirements as it allows for both internal or external pilot control. The solenoids are designed to work with wet-pin DC or AC currents and offer electrical connections that can be configured individually or centrally. It's important to note that while this directional valve ensures reliable performance over its lifecycle, some internal leakage may occur as a result of its design principle. Authorized specialists should only perform modifications to maintain optimal functioning within prescribed operating parameters.