H-4WEH25W6X/6EW110N9ES2DAL/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 H-4WEH25W6X/6EW110N9ES2DAL/V (R978009157) is a directional control valve designed for electrohydraulic applications requiring precise control and reliability. This model features spring chambers that maintain the main control spool in a central position without pilot pressure, ensuring stability and responsiveness even in vertical valve orientations. While internal leakage is inherent to these valves, it is meticulously managed to maintain performance throughout the product's lifecycle. This particular model employs pressure centering of the main control spool, which is controlled by pressurizing both front faces of the spool, securing it in a zero position. When one side is relieved, the valve switches positions, with the other side facilitating the return of pilot oil through an external pilot control valve. The H-4WEH25W6X/6EW110N9ES2DAL/V offers versatility in its pilot oil supply and return configurations. It can be set up with an external supply via channel X or internally from channel P of the main valve depending on the type—HWEHE or HWEH...ET..., respectively. Similarly, pilot oil return can be managed externally through channel Y into a tank or internally via channel T. For situations requiring restricted pilot oil supply flow rates, a throttle insert can be utilized within channel P of the pilot control valve. The device comes with several actuation options including electrohydraulic solenoids for subplate mounting that adhere to ISO porting patterns. It also offers flexibility through optional features like manual overrides, switching time adjustments, preload valves in channel P of the main valve, as well as stroke setting and spool position monitoring capabilities. In summary, this Bosch Rexroth directional valve provides robust performance and adaptability for complex hydraulic systems demanding high precision and resilience.