Bosch Rexroth DBE 20-37 200XY-509 K4 Hydraulic Proportional Pressure Relief Valve

Bosch Rexroth DBE 20-37/200XY-509 K4 is a proportional hydraulic pressure-relief valve designed to limit system pressure with a proportional control signal. Part of Rexroth's DBE family, the model combines 20-37 size with XY porting and a K4 device connector, aligning with Rexroth's proven valve patterns and standardized electrical interfaces. The "200XY" code denotes the valve's port pattern and size, while "509" and "K4" specify a particular seal configuration and electrical connector, respectively, enabling reliable operation with compatible control electronics and wiring harnesses. As a proportional relief valve, it adjusts relief pressure in proportion to the input signal, delivering smooth, scalable pressure control across varying load conditions and protecting hydraulic components from overpressure. This configuration is suitable for industrial hydraulic circuits requiring precise, repeatable pressure regulation and integration with Rexroth control solutions using the K4 connector standard. When selecting this model, ensure the porting geometry (XY) matches your manifold and that the electrical interface (K4) aligns with your control electronics; verify fluid compatibility and material seals for the service fluid to maintain long-term reliability.