4WEH22G7X/6EW110N9ETS2DA

***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 4WEH22G7X/6EW110N9ETS2DA (R978909425) is a highly sophisticated directional spool valve designed for controlling the start, stop, and direction of fluid flow in hydraulic systems. This electrohydraulically actuated valve is part of the WEH series and features a main valve with housing, a control spool, return springs, and a pilot control valve equipped with solenoids. The device ensures stable positioning of the main control spool in its initial state through spring force or pressurization, allowing for precise flow management. The valve offers various pilot oil supply options, including both internal and external configurations, which can be tailored to specific application requirements. The internal pilot oil supply is derived from channel P of the main valve, while external options utilize channel X for supply and channel Y for return. For applications requiring controlled flow rates, the inclusion of a throttle insert in channel P is necessary to limit pilot oil supply. Additionally, this model boasts a range of actuation types including electrohydraulic operation with subplate mounting and porting patterns that comply with ISO standards. Users can choose between spring or pressure centering and select from various solenoid types such as wet-pin DC or AC versions. The 4WEH22G7X/6EW110N9ETS2DA also provides optional features like manual override capabilities, switching time adjustments, preload valves in channel P of the main valve, as well as stroke setting or spool position monitoring for enhanced control precision. This Bosch Rexroth directional valve is engineered to facilitate reliable performance and adaptability across diverse hydraulic applications. Its robust design accounts for inherent internal leakage that may occur over its lifespan while maintaining operational integrity and efficiency.