Hydraulic control valve

Abstract

The invention relates to a hydraulic control valve (1) which is assigned to a pressure line (13) that is led from a pressure medium source to at least one load, and has a first position, in which the pressure line (13) can be pressurized by means of the pressure medium source, and has a second position, in which the load connected to the pressure line (13) can be depressurized, it being possible for the control valve (1) to be acted on in the direction of the first position by means of an actuating device (17) and in the direction of the first position by means of a restoring device (11). The object, with little expenditure, of permitting the load to be depressurized in the event of a functional fault of the control valve, is achieved according to the invention in that the control valve (1) has a safety function by means of which, in the event of a functional fault of the control valve (1), the pressure line (13) can be depressurized to a container, irrespective of the position of the control valve (1). According to a preferred embodiment, the safety function is formed by a valve function (20) integrated in a control slide (3) of the control valve (1).

Dependencies are inferred from the claim text.