Patent ID: 6973940

Claim:
A hydraulic control valve assigned to a pressure line led from a pressure medium source to at least one load, comprising: a control valve having a first position in which a pressure line is pressurized by a pressure medium source and a second position in which a load connected to the pressure line is depressurized; an actuating device having an actuating element; a restoring device, wherein the control valve is acted on in a direction of the first position by the actuating device and in the direction of the second position by the restoring device; and a safety function by means of which, in the event of a functional fault of the control valve, the pressure line is depressurized to a container, irrespective of the position of the control valve, wherein the control valve has a control slide comprising a relief duct, wherein the relief duct forms a control opening in an end of the control slide, and wherein the actuating element of the actuating device can be loaded by a spring in the direction of a blocking position that blocks off the control opening.