Structural principle of direct contact solenoid valve

The composition of electromagnetic valves mainly includes: valve body, coil, armature, valve needle, etc. The coil is wound with enameled wire and assembled outside the iron core. Iron core, also known as armature, can drive the valve needle to move up and down. When the coil is energized, the generated magnetic field lifts the armature to drive the valve needle. When the valve is opened to cut off the current, the magnetic force disappears. The armature and valve needle automatically fall under the action of gravity, closing the valve and cutting off the liquid supply pipeline.