H-4WEH25J6X/6EG24N9K72L

***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 H-4WEH25J6X/6EG24N9K72L (R901272534) is a highly sophisticated electrohydraulic directional control valve designed for subplate mounting with porting patterns that comply with ISO standards. This model features a 4-way configuration and is equipped with wet-pin DC or AC solenoids, which can be chosen based on application requirements. The solenoids facilitate electrical connection either as individual or central connections, offering flexibility in system integration. This valve offers multiple types of actuation including internal or external pilot control. It is engineered with spring or pressure centering and has options for spring end position or hydraulic end position to suit different operational demands. For enhanced functionality, it includes optional features such as manual override, switching time adjustment, preload valve in channel P of the main valve, stroke setting, and spool position monitoring. The H-4WEH25J6X/6EG24N9K72L employs a pressure centering design for the main control spool which maintains it in the zero position through pressurization of both front faces, ensuring precise control and stability. In the absence of pilot pressure, return springs within the spring chambers secure the main control spool in its central position even when mounted vertically. Pilot oil supply and return can be configured in various ways depending on the type designation (HWEH...ET..., HWEH...T..., etc.). The pilot oil supply can be either externally sourced via channel X from a separate pressure supply or internally from channel P of the main valve. Similarly, pilot oil return can be directed externally to the tank via channel Y or internally via channel T. The inclusion of a throttle insert may be necessary to limit pilot oil supply in certain applications; however, any modification to this system must only be performed by authorized specialists to ensure proper functioning and adherence to maximum operating parameters as specified in technical documents.