third section 58 connected to second section 56 also has diameter d 1 and is guided sealingly but axially displaceably in guide bore 38 of sliding sleeve 36 as a result annulus space 62 is delimited in the axial direction by first section 54 and third section 58 in fourth and last section 60 control piston 40 has a smaller diameter and tapers conically toward an end face 64 in the equilibrium position shown in fig2 control piston 40 is situated axially in sliding sleeve 36 in such a way that annulus space 62 communicates with control pressure opening 44 the rim of first section 54 facing second section 56 forms a control edge with no reference numeral in addition the front rim of third section 58 facing second section 56 also forms a control edge with no reference numeral electromagnetic actuation device 24 is situated in fig2 on the right side of pressure control valve 18 it includes among other things an annular coil 66 which is wound around a winding carrier 68 coil 66 is surrounded by a magnet housing 70 which contains actuation device 24 situated inside coil 66 is a pole tube 72 pole tube 72 includes a first bore 74 having a diameter d 3 bore 74 forms a magnet chamber 76 a sleeve like magnet armature 78 is inserted within magnet chamber 76 from an open side into.