A solenoid valve is an electromechanical device in which the solenoid uses an electric current to generate a magnetic field and thereby operate a mechanism which regulates the opening of fluid flow in a valve.
Solenoid technology is an electro-mechanical device that controls the flow of a media through a pipe by opening or closing the valve orifices. The solenoid assembly consists of a coil, plunger, and sleeve assembly. In a normally closed valve, a plunger return spring holds the plunger against the orifice, preventing flow through the valve. When the coil is energized, a magnetic field is produced, raising the plunger and allowing flow through the valve. Multiplex valve series that controls various kinds of fluid such as water, air, gas, oil.