4WRZ25W8-325-7X/6EG24N9K4/V-674

***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 4WRZ25W8-325-7X/6EG24N9K4/V-674 (R901279370) is a pilot-operated proportional directional valve designed to manage flow direction and magnitude with precision. This model is characterized by its ability to actuate via proportional solenoids, ensuring smooth and responsive control over hydraulic systems. The valve comprises a pilot control valve with solenoids and a main valve with a control spool and centering spring, which maintains the spool in a central position when the solenoids are deenergized. The main control spool of this Bosch Rexroth valve operates proportionally to electric input signals, moving fluidly to adjust the flow as needed. The design includes an additional port R for NG size only, allowing for versatility in application. This model also features orifice-type cross-sections that provide progressive flow characteristics, ensuring efficient operation. For pilot oil supply, users have the option of internal supply via port P or external supply through port X. In terms of safety, an optional manual override is available; however, caution is advised as accidental activation may lead to unintended machine movements. Users must be cognizant of potential internal leakage due to the inherent design principle of these valves, which may increase over time. The Bosch Rexroth 4WRZ25W8-325-7X/6EG24N9K4/V-674 valve is designed for subplate mounting and adheres to ISO porting patterns. Its spring-centered control spool allows for reliable return to neutral and consistent performance in various hydraulic applications. With no integrated electronics OBE (On Board Electronics), this model requires external control electronics for operation but offers flexibility in integration into existing systems. It stands as a robust solution for those seeking precise hydraulic flow management within their operations.