4WRZ25E1-325-7X/6EG24N9EK4/D3WG152M-68

***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 4WRZ25E1-325-7X/6EG24N9EK4/D3WG152M-68 (R901117480) is a sophisticated pilot-operated proportional directional valve designed to accurately control the direction and magnitude of flow in hydraulic systems. This model is characterized by its ability to actuate via proportional solenoids, ensuring precise modulation of flow based on the electrical input signal. The valve setup comprises a pilot control valve with proportional solenoids and a main valve that includes a main control spool and centering spring, which maintains the spool in a central position when the solenoids are deenergized. Upon energization, the pilot control valve directs pilot oil into the pressure chamber, causing proportional deflection of the main control spool relative to the electric input signal. This action facilitates connection from port P to A and B to T through orifice-type cross-sections with progressive flow characteristics. The WRZE model also features an additional port R only for NG size and allows for internal or external pilot oil supply through ports P or X, respectively. For manual operation, there is an optional manual override that can be engaged to move the control spool without solenoid activation; however, users must be cautious as accidental use may result in unintended machine movements. Additionally, it's important to note that due to its design principle, some internal leakage is inherent in these valves and may increase over time. The 4WRZ25E1-325-7X/6EG24N9EK4/D3WG152M-68 is suitable for subplate mounting with a porting pattern according to ISO standards and features a spring-centered control spool for reliable return to neutral position. Its construction without integrated electronics OBE requires external electronic controls for operation. This Bosch Rexroth valve stands out for its precise operational capabilities in controlling fluid dynamics within hydraulic systems.