Directional valves

Shut-off valves are a type of pressure control valve. They receive the control oil from a high-pressure circuit and switch the delivery flow of a low-pressure pump to unpressurised circulation if the pressure value set has been reached. During this process, the consumer side is separated from the idle circulation by a zero-leakage check valve. If the pressure on the consumer side drops below the pressure setting, the idle circulation is interrupted and the oil fed to the consumer again.