Bucher Hydraulics DRVSA-7P Proportional 3-Way Pressure-Reducing Valve

The Bucher Hydraulics DRVSA-7P is a proportional 3-way pressure-reducing cartridge designed for stackable valve assemblies, carrying the part number 280251. It provides electrically controlled, proportional regulation of inlet pressure to a regulated load port while exhausting excess flow through the third port, delivering a true three-port function for precise actuator control in hydraulic circuits. For NG 10 (ISO size 10) interfaces, the cartridge uses the DP cavity with an M27 x 2 port/cavity thread and offers a maximum flow of 120 L/min (31 gpm) with a Pmax rating up to 350 bar (5,000 psi). The valve is designed for ISO 4401-03-02 mounting in Bucher’s modular MSS stacks and supports a range of plug-connector systems and voltages for the proportional drive, making it suitable for machine tools, presses, and automated systems that require stable, adjustable load pressure. With Bucher’s DRVSA-7P family, it integrates with Bucher hydraulic drives and control blocks, enabling synchronized pressure regulation across multiple functions in compact, stackable configurations.