ZDR 6 DA1-4X/25Y SO145 IN010

***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 ZDR 6 DA1-4X/25Y SO145 (R983049257) is a direct operated pressure reducing valve designed for precise control in hydraulic systems. This sandwich plate valve is engineered to reduce system pressure by limiting the secondary circuit through its robust construction, which includes a housing, control spool, compression spring, and an adjustment type with an optional check valve. The ZDR series ensures secondary pressure is meticulously set via the adjustment type, allowing for consistent performance. The model features a distinctive initial open position that allows unrestricted fluid flow from channel A to A while maintaining constant pressure levels through the action of the control spool and compression spring. Internal control signals and pilot oil are supplied from channel A, ensuring efficient operation even when external forces cause pressure fluctuations. This valve also includes an externally drained leakage oil from the spring chamber and provides a pressure gauge connection for monitoring secondary pressure directly at the valve. The design accommodates a check valve for free flow return between channels in version A. With multiple versions available (A, P, and B), this model offers versatility in applications—version P reduces pressure in channel P with internal pilot oil supply from that channel, whereas version B reduces pressure in channel P while extracting pilot oil from channel B. The Bosch Rexroth ZDR 6 DA1-4X/25Y SO145 is compatible with ISO porting patterns and can be customized with various adjustment types including rotary knobs and sleeve options. It is also available in corrosion-protected designs for demanding environments. This model stands out for its reliability in maintaining set pressures within hydraulic systems while providing flexibility and precision across different operational modes.