Directional proportional valves represent an advanced solution for motion control in hydraulic systems, allowing continuous and modulated regulation of the flow to actuators. Unlike on-off valves, these valves enable the moving element to be positioned proportionally to the electrical control signal, ensuring smooth, precise and repeatable movements of hydraulic cylinders and motors.

The operating principle is based on the controlled variation of the flow areas between ports P, T, A and B, achieved through proportional solenoids and often supported by integrated electronics or external control boards. This allows modulation of speed, acceleration and deceleration, improving control quality and reducing mechanical stress and pressure peaks within the circuit.

fluid-hub offers a wide range of directional proportional valves designed for high-performance industrial applications, where dynamic control, operational stability and integration with automation systems are required. The proposed solutions are suitable for multiple circuit configurations and compatible with the main mounting standards.

Within the proportional valve family, it is also possible to explore:

• Flow control proportional valves, ideal for fine regulation of actuator speed

• Pressure control proportional valves, used for precise management of system pressure levels.

Thanks to their versatility and precision, directional proportional valves are the ideal choice for machine tools, presses, automated systems and advanced industrial equipment, where motion control is a key factor for overall performance.

Depending on application requirements, directional proportional valves can be combined with other types of components such as on-off valves, filling valves, valve spare parts and digital drivers, which complete and optimize the operation of the hydraulic system.

Browse the full hydraulic valves section for an overview of all available types. To ensure the fluid cleanliness essential for correct proportional valve operation, fluid-hub offers pressure filters and pressure filtering elements.