4WEH 16 W42-7X/6EW110N9ETK4/10

***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 W42-7X/6EW110N9ETK4/10 (R900929896) is a highly sophisticated electrohydraulic directional spool valve designed for controlling the start, stop, and direction of fluid flow within hydraulic systems. This model is characterized by its ability to manage flow direction via a main control spool that is positioned by pilot pressure and return springs. The valve can be supplied with pilot oil either internally or externally and features an optional manual override for direct control without solenoid activation. The unit's design incorporates wet-pin DC or AC solenoids and offers the flexibility of spring or pressure centering. It supports subplate mounting with porting patterns compliant with ISO standards, accommodating various configurations such as 3- or 4-way versions. The valve ensures reliability with features like spring end positioning or hydraulic end positioning, providing versatility in application. Additionally, this model can come with various optional enhancements including switching time adjustments, a preload valve in channel P of the main valve for system stability, stroke setting, and spool position monitoring to ensure precise control over the hydraulic system's operations. These features make it suitable for a wide range of applications requiring meticulous fluid control in complex hydraulic systems. It is important to note that any modifications to the pilot oil supply should only be carried out by authorized specialists or at the factory to maintain system integrity and performance. The maximum operating parameters detailed in the data sheet must be adhered to, especially concerning pilot pressure specifications for both internal (ET and E) and external (X or Y) versions. The inclusion of a throttle insert may be necessary under certain conditions to regulate pilot oil supply flow rates effectively.