To “open” the valve, a current activates the magnetic field and moves the plunge. The solenoid itself contains an electromagnetically inductive coil surrounding an iron center (the plunger).įor a solenoid valve that is “normally open,” the valve is closed when de-energized. A solenoid control valve is either “normally closed” or “normally open.” How Does a Solenoid Valve Work?Ī solenoid valve has two parts, the solenoid and the valve body. The electromagnetism caused by currents moves the plunger either up or down to pinch and control the flow. The flowing media could be water, air, gas, oil, steam, or refrigerant.Ī solenoid control valve has two main components: a solenoid on top and the valve system on the bottom. What is a Solenoid Control Valve?Ī solenoid control valve is used by engineers to control the flow of fluid within a system autonomously and remotely, thereby eliminating the need for manual closure and opening of valves. We find solenoids used in such automated applications as sprinkler systems, power switches, car starters, and many more. Positive and negative poles make a linear motion within the electromagnetic field to move the piston either backward or forward. How does a solenoid work? An electromagnetic coil of wire converts electrical energy to mechanical energy. Solenoids are useful in a wide array of mechanical functions.
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