The application belongs to a two-position three-way PWM
electromagnetic valve, and aims at solving the problems of complex structure,
slow response speed, high quality requirement of parts
processing, high requirement of product
assembly process and large leakage of existing two-position three-way high-speed on-off
electromagnetic valve, and provides a normally closed two-position three-way PWM
electromagnetic valve with a non-magnetic
gasket ball valve structure, wherein the inner surface of the top of the stop iron is provided with a boss, the bottom of the boss is provided with a
counterbore, the surface of the armature is coated with a non-
magnetic coating, the top is provided with a first mounting hole, the
elastic component is located in the
counterbore and the first mounting hole, the coil is wound on the upper part of the armature and the outer wall of the boss, one end of the top rod is fixed with the armature, and the other end is arranged opposite to the
steel ball, the first through hole is arranged in the valve body along the axial direction, is sleeved on the outer side of the lower part of the armature, the inner wall of the first through hole is provided with a limiting boss, the
valve seat is fixed on the bottom of the first through hole, a cavity is formed between the top of the
valve seat and the limiting boss, and the
steel ball is located in the cavity.