understanding the normally open solenoid valve： applications and benefits
Release time:2025-12-25 18:14:51
A Normally Open Solenoid Valve (NOSV) is a type of electromechanical valve that operates in a unique manner compared to other types of solenoid valves. Unlike the more common Normally Closed Solenoid Valve (NCSV), which is closed when de-energized and opens when energized, the Normally Open Solenoid Valve remains open when there is no electrical power. When the valve receives an electrical signal, the valve closes to stop the flow of fluids or gases. This distinctive feature makes it an essential component in many industrial, commercial, and residential applications. This article delves into the workings, applications, and benefits of Normally Open Solenoid Valves.
How Does a Normally Open Solenoid Valve Work?
At the heart of a Normally Open Solenoid Valve is an electromagnetic coil, which is responsible for opening and closing the valve. When no electrical current flows through the coil, the valve remains open. The magnetic force generated by the coil is not active, and the valve's mechanical design allows it to stay in the open position.
When an electrical current is supplied to the solenoid, the coil generates a magnetic field that pulls a plunger or diaphragm inside the valve, closing the valve and halting the fluid or gas flow. The valve will stay closed as long as the electrical signal is maintained. Once the electrical current is cut off, the valve automatically returns to the open position due to a spring or similar mechanism inside the valve body.
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