Overcentre valves give static and dynamic control of loads by regulating flow into and out of hydraulic actuators. The Overcentre valve will stop the load from running away in the event of a hose burst. If open center directional control valves are used, they will allow the thermal expansion relief of the hydraulic fluid. These valves provide excellent hose burst protection.

The check section of the valve allows free flow into the actuator and then holds and locks the load against movement. Pressure in the pilot port will give a controlled movement to the cylinder when. The pressure required to open the valve and allow movement depends on the pilot ratio of the valve.

Matched ground and hardened working parts give a long and trouble-free life. Consistent stable operation providing low pressure over ride even with increasing flows.