4WRKE25W6-350L-3X/6EG24ETK31/A5D3M-280

***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 4WRKE25W6-350L-3X/6EG24ETK31/A5D3M-280 (R900753393) is a sophisticated pilot-operated two-stage proportional directional valve with electrical position feedback and integrated onboard electronics (OBE). This valve is designed for subplate mounting and follows the porting pattern according to ISO standards. The main control spool is spring-centered and the unit includes a single-stage pilot control valve that optimizes performance for proportional directional valves of type WRKE. The 4WRKE25W6-350L-3X/6EG24ETK31/A5D3M-280 features a direct operated pilot control valve with an optimized control edge geometry, ensuring precise flow direction and size control. The valve's proportional solenoids are pressure-tight, wet-pin DC solenoids with detachable coils, translating electric current into mechanical force consistently across the entire control stroke. The main stage of this valve is position-controlled, which means that the spool position remains stable under varying flow forces. This model comes equipped with an inductive position transducer for accurate spool positioning feedback to the integrated electronics, ensuring that the actual value aligns with the command value for precise operation. Additionally, it has a pressure reducing valve as part of its assembly. The zero point adjustment is factory-set but can be fine-tuned by trained experts via a potentiometer within a specific range of nominal stroke. It's important to note that any adjustments or exchanges of components such as the pilot control valve or electronics should only be conducted by qualified personnel to avoid potential system damage. In summary, Bosch Rexroth's 4WRKE25W6-350L-3X/6EG24ETK31/A5D3M-280 offers reliability and precision in controlling flow direction and magnitude in hydraulic systems where high performance and accuracy are paramount. Its robust design ensures consistent operation even in demanding applications requiring tight tolerances and responsive feedback mechanisms.