Magnetic valve

A magnetic valve comprising a valve housing, first means for dividing the housing into an inlet chamber and an outlet chamber and defining at least one valve seat for fluidly connecting the first chamber to the second chamber, an electromagnet in the housing and operable between an energized and a deenergized condition for forming a magnetic field, the electromagnet including an energizable magnetic coil and an axially extending valve shaft axially movable by the magnetic field from a first position to a second position relative to the coil when the electromagnet is energized, the shaft being made of a magnetic material, an annular valve plate member in surrounding relationship to the shaft, abuttable against the valve seat for blocking fluid flow therethrough and axially movable relative to the shaft, second means mounted on the shaft for movement therewith for acting against the valve plate member to move the plate member relative to the valve seat to permit fluid flow through the seat when the shaft is in its second position, and a resetting spring acting against the plate member for resiliently retaining the plate member in abutting relationship to the valve seat to block fluid flow through the valve seat and therethrough resiliently retain the shaft in the shaft first position, the annular valve plate member comprising an annular valve plate made of resilient metal and having an annular inner edge, and a first plurality of angularly spaced teeth joined to the annular inner edge to extend radially inwardly thereof, and an elastic plastic coating joined to at least the valve plate of the valve member, the teeth having at least partially uncoated parts.