What Does a Solenoid Valve Do and What Types Are There?
A solenoid valve is an electro-mechanical valve used to control the flow of liquid or gas. By using electromagnetism, it opens or closes a port in the valve body to regulate flow. There are two main types: direct-acting and pilot-operated, with various configurations for different applications.
Advantages of Solenoid Valves
Solenoid valves offer low energy use, remote operation, cost-effective maintenance, compatibility with AC/DC voltages, fast open/close times, operation in extreme temperatures, safety features, and versatility in vertical and horizontal operation. They are ideal for applications involving toxic fluids or where speed is crucial.
Disadvantages of Solenoid Valves
Solenoid valves can be sensitive to voltage fluctuations, requiring a constant and correct voltage feed for reliable operation. Issues like coil deterioration, the need for a control signal during operation, unintended partial closure, and the effect of flow on the valve fluid are common disadvantages. They may not always be the most effective solution compared to motorized or pneumatic valves.