| 1. A method for manufacturing a magnet armature constructed from ferromagnetic material as a cylindrical member with one outer
surface and two end boundary faces and at least one elastomeric sealing element disposed on at least one of the two end regions
of the armature, the armature being mounted displaceably under the load of a spring in a valve housing equipped with an actuating
magnet, wherein the magnet armature occupies a first position or home position when the energizing current of the actuating
magnet is off, and occupies a second or actuation position when the energizing current of the actuating magnet is on, and
wherein, in valves having at least one hermetically sealing position in at least one of the two positions, there is disposed
in the valve housing a valve seat, which when this position is occupied by the magnet armature forms a pressure-tight closure
via the at least one elastomeric sealing element, the method comprising the steps of manufacturing the magnet armature in
its intended shape, including an armature region for the at least one elastomeric sealing element, coating the magnet armature
with a plastic layer on its entire surface, introducing a non-cross-linked elastomeric material into the armature region for
the elastomeric sealing element without using an adhesion promoter, and cross-linking the introduced elastomeric material
by the action of pressure and heat to vulcanize the elastomeric material and form the at least one elastomeric sealing element
in the armature region.
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