Solenoid valve yɛ control unit a, sɛ anyinam ahoɔden anaa DE-wonya ahoɔden a, dum anaasɛ ɛma nsuo no sen. Sɛ ɛyɛ ahoɔden a, magnetic field bi si a ɛtwe plunger bi tia asubura bi adeyɛ. Sɛ DE-wɔnya ahoɔden a, wɔde plunger anaa pivoted armature no san ma ne mfitiaseɛ gyinabea denam spring adeyɛ no so. Actuator no fa electromagnet kwan so.

