A
pilot-controlled valve, having a valve
system which switches a pressure medium flow between at least one working connection, a supply pressure connection and a ventilation connection. The invention provides that the valve
system includes at least one valve member made of
ceramic material that is operated rotationally and / or linearly by the
pilot control, at least one connecting channel is developed in the valve member which is able to be brought into flow connection to the working connection, which, as a function of the position of the valve member, produces a flow connection of the working connection to a first flow channel that is in connection to the ventilation connection or to a second flow channel that is in connection to the supply pressure connection, at least one section of the first flow channel and the second flow channel being developed in at least one static valve body that is made of
ceramic material, at least the first flow channel is sealed from the second flow channel by at least one seal that is situated in a region outside a direct inflow by the pressure medium.