SOLENOID VALVE

摘要

A solenoid valve (1) capable of handling a corrosive control fluid and developing an increased attraction force, wherein a fixed core disposed in a wound coil (29) is projected to the lower side of the coil, a plunger (16) holding a valve seat (17) is supported by a plate spring (18) under the fixed core, the valve seat (17) is always brought into contact with a valve seat (13) by the spring force of the plate spring (18), and the valve seat (17) is separated from the valve seat (13) against the spring force of the plate spring (18) by energization to the coil (29). The fixed core is divided into two upper and lower parts, the first fixed core (26) disposed in the coil (29) and not in contact with a control fluid is formed of a material with high permeability, and the second fixed core (27) projected from the coil (29) downward is formed of a corrosive resistant material matching the highly corrosive control fluid.