4WEH 16 E7X/6EW110N9ETDK25L

***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 16 E7X/6EW110N9ETDK25L (R900930584) is a sophisticated directional spool valve designed for electrohydraulic actuation, adept at controlling the start, stop, and direction of fluid flow. This model is part of the WEH series, which features robust construction comprising a main valve housing, a control spool, return springs, and a pilot control valve equipped with solenoids. The main control spool is held in its initial position by either the return springs or through pressurization. This particular model is engineered for subplate mounting and follows the ISO porting pattern. It offers flexibility with various types of actuation such as spring or pressure centering and can have spring end positions or hydraulic end positions. The valve includes wet-pin DC or AC solenoids which can be connected individually or centrally depending on the application requirements. Additional features that enhance the versatility of this valve include options for manual override, switching time adjustment, a preload valve in channel P of the main valve, stroke setting, and spool position monitoring. These features allow for customization to meet specific system requirements and ensure precise control over hydraulic flow within an array of applications. The design accommodates both internal and external pilot oil supply and return paths. For instance, type WEH...ET... models internally manage pilot oil supply from channel P of the main valve while returning it internally via channel T into the tank. Conversely, other configurations may require external channels X or Y for pilot oil supply or return respectively. It's important to note that internal leakage is inherent in these valves due to their design principle; however, this is accounted for in their operational parameters to maintain efficiency over their lifecycle. The modification of pilot oil supply should only be carried out by authorized personnel to ensure adherence to maximum operating parameters as detailed in the technical data sheets provided by Bosch Rexroth.