Solenoid Valves for the widest range of applications are an electronically operated devices. They are used to control the flow of liquids or gases in a positive, fully-closed or fully-open mode.
Solenoid valves commonly used to replace a manual valves or where remote control is desirable. Additionally, a solenoid is operated by opening and closing an orifice in a valve body. That permits or prevents flow through the valve. The orifice is opened or closed through the use of a plunger. Which is raised or lowered within a sleeve tube by energizing the coil. Therefore, the bottom of the plunger contains a compatible sealing material. Which closes off the orifice in the body, stopping flow through the valve.
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. In a normally open valve, when the coil is energized, the plunger seals off the orifice, stopping flow through the valve.