Directional control valves are one of the core elements in a hydraulic circuit. They help directing the fluid to different components in the system.
Directional control valves perform only three functions:
- Stop fluid flow
- Allow fluid flow
- Change direction of fluid flow
There is a part called «spool» inside control valve which can be operated mechanically or electrically. The movement of the spool lets oil flow or blocks the oil flow in other words it controls the movement of fluid. Hidros provide P80 series monoblock valves with automatic kickout feature.
These valves are for use in a machine having a part moved by hydraulic pressure under control of a manual control valve which has a detent for holding it in an actuating position. The kickout valve is engaged when the movable part reaches a pre-established position. The valve is opened and admits fluid under pressure through a circuit leading to the control valve, where it causes release of the detent and allows the control valve to seek a closed or hold position and the moving part to come to rest.