cone 22 of the valve member 20 need not necessarily also be elastic in this exemplary embodiment the valve member 20 is axially displaceably supported on a displacement rod 26 and on the end of the displacement rod 26 toward the valve seat 24 it is secured on the displacement rod 26 by a securing plate 28 on the side of the valve member 20 remote from the valve seat 24 there is a damper ring 30 in the form of a mechanical stop plate 32 which is solidly connected to the displacement rod 26 and which as a limiter restricts the axial movability of the valve member 20 along the displacement rod 26 also secured to the displacement rod 26 are a stripper ring 33 and an actuator 34 that cooperates with a magnet coil 36 and forms the electromagnetic actuator 60 for the valve of the invention in the embodiment of fig1 the armature 34 is axially displaceably guided in an armature chamber 38 of the actuator 60 by a guide bush 40 the fluid pressure which prevails for instance in a heating and or cooling system to be regulated in a motor vehicle and which is established in the inlet conduit 14 of the valve of the invention displaces the valve member 20 into its open position so that the valve cone 22 is lifted from the valve seat 24 if the magnet coil 36 is excited an armature core 42 which is connected to a short circuit.