Abstract: To control the flow of pressure medium to and from a hydraulic actuator, a device is provided which comprises an electrically operated valve and a controller, integrated into the housing of the valve or held on the latter in its own housing, for the position of the valve piston. In order to make it possible to use such devices cost-effectively in open-loop and closed-loop control systems with a plurality of electrohydraulic drives, a controller for a variable representative of the movement of the actuator, and an electronic controller for the movement sequence of the actuator, are arranged in the same housing as the controller for the position of the valve piston. Devices of this type are used everywhere where electrohydraulic drives are controlled, e.g. in the machine tool sector.