How does a solenoid valve work?

A solenoid valve is a type of automatic valve which removes the need for engineers to operate them manually. Also known as an electrically-operated valve, solenoids operate using an electromagnetic solenoid coil to change the state of the valve from open to closed.

The main purpose of a solenoid valve is to regulate the movement of gas or liquid, whilst removing the need for engineers to manually control the valve. Solenoid valves consist of two basic parts; a solenoid (or an electromagnet) and the valve itself. The body of the valve is made up of two or more openings. The solenoid is home to several important parts, including a coli, sleeve assembly and plunger.

These valves work by employing the electromagnetic coil to open or close the valve openings. When the coil within the solenoid becomes energised, the plunger will either be lifted or lowered to open or close the openings. This function will control the flow and regulate movement of gases or liquids.

The main advantage of solenoid valves it their versatility. Solenoids can be used in array of industries and applications, as well as being perfected suited for a range of liquids and gaseous media types. They provide an efficient means of controlling flow, as solenoid valves require little wiring, expense or effort when compared to other valves.

However, a flaw of solenoid valves is their capability to handle dirty or contaminated fluids or gases. Foreign contaminants can collect in the solenoid valve’s parts and impede operation. Therefore, it is important that the correct voltage is applied when operating solenoid valves.

References

https://www.fluidcontrols.co.uk/how-solenoid-valves-work/

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