Abstract: The invention relates to a hydraulic multiposition valve, in particular a valve for selecting the steering modes of vehicles with multi-axle steering, having one or more position-seat valves (31, 33, 35, 37, 39, 41, 43), which have at least two switching positions and which communicate via lines for the hydraulic medium with one another and with a number of controlled connections (A, B, C, D; L, R) in such a manner that the desired switching positions of the multiposition valve (13) can be selected by the actuation of the seat valves (31-43); and having an actuating arrangement (29) for actuating the seat valves (31-43); the actuating arrangement (29) can be locked in detent fashion in the switching positions of the multiposition valve (13).

Abstract: A pilot-operated hydraulic pressure relief valve (HV) includes a main valve element (5) which is biased into a closed position by a spring (6). A pilot valve (VV1) has an open condition and a closed condition. A relief device (EV) is actuatable by the pilot valve (VV1) between an activated condition in which the force exerted by the spring (6) on the main valve element (5) is at a reduced level and a deactivated condition in which the force exerted by the spring on the main valve is at an increased level. The relief device (EV) includes a movable spring support (8) which supports a first end of the spring (6). A second end of the spring (6) is supported for movement with the main valve element (5).