an in-depth look at normally closed solenoid valve： function, applications, and advantages
Release time:2025-12-26 03:34:29
A Normally Closed (NC) Solenoid Valve is a widely used type of valve in automation systems and fluid control applications. Known for its reliability and ability to control the flow of liquids and gases, this valve plays a crucial role in a variety of industries, including HVAC systems, irrigation, and fluid handling. In this article, we will explore the basic functions, working principles, applications, and advantages of Normally Closed Solenoid Valves.
Understanding Normally Closed Solenoid Valves
A Normally Closed Solenoid Valve is designed to be in a closed position when there is no electrical power supplied to it. This characteristic is the opposite of a Normally Open (NO) Solenoid Valve, which remains open when not energized. The valve remains closed, preventing the flow of fluid, gas, or air until it is energized by an electric current.
When an electrical current flows through the solenoid coil, it generates a magnetic field that pulls or pushes the plunger or armature inside the valve, causing it to open. This allows the medium (water, air, gas, etc.) to flow through the valve. Once the electrical current is turned off, the valve automatically returns to its default closed position, stopping the flow.
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