Working Principle of Water Electromagnetic Valve

Working Principle of Water Electromagnetic Valve：

There are closed chambers in the solenoid valve for water use. There are through holes in different positions. Each hole leads to different oil pipes. In the middle of the chamber is a valve, and on both sides are two electromagnets. The magnet coil electrifying valve body on either side will be attracted to which side. By controlling the movement of the valve body, different oil drain holes will be blocked or leaked out, while the oil inlet hole is usually open. The hydraulic oil will enter different drain pipes, and then push the piston of the cylinder through the pressure of the oil. The piston will drive the piston rod, and the piston rod will drive the mechanical device. In this way, the mechanical motion is controlled by controlling the current of the electromagnet.

The water solenoid valve is a pilot solenoid valve with secondary opening. Its structure is mainly composed of a pilot valve and a main valve. The main valve adopts a rubber sealing structure. At constant position, the movable iron core closes the guide valve opening, the pressure in the valve chamber is balanced, and the main valve opening is closed. When the coil is electrified, electromagnetic force is generated to suck up the active iron core, and the medium in the main valve chamber leaks out from the guide valve mouth, resulting in pressure difference. The diaphragm or valve cup is quickly lifted, the main valve mouth opens, and the valve presents a path. When the coil is cut off, the magnetic field disappears, the movable iron core is reset, the guide valve orifice is closed, the pressure in the guide valve and the main valve chamber is balanced, and the valve is closed again.