This valve performs a protective and regulating function in hydraulic systems by receiving fluid from the high-pressure inlet line and reducing it to a lower and stable pressure at the outlet. When the pressure in the downstream line increases, the valve is activated and automatically adjusts to maintain the outlet pressure at the predetermined level.

It is preferred in industrial hydraulic systems where sub-circuits need to operate at different pressure levels than the main pump pressure; providing a safe and stable pressure value for accumulator blocks, control circuits, or auxiliary lines. Its compact design and precisely adjustable mechanism help reduce wear and pressure-related failures within the system.