A Normally Open Solenoid Valve (NO Solenoid Valve) is a key component in many automation systems, providing efficient control of fluid and gas flow. In this article, we will explore how these valves operate, their primary applications, and why they are an important tool in industrial and commercial settings.
What is a Normally Open Solenoid Valve? A Normally Open Solenoid Valve is a type of solenoid valve that remains open in the default, de-energized state. This means that when the solenoid is not energized (i.e., no electric current is flowing through the coil), the valve stays open, allowing fluid or gas to pass through. When the solenoid coil is energized, it creates a magnetic field that pulls the valve’s internal plunger or diaphragm, closing the valve and stopping the flow of the fluid. This design is the opposite of the Normally Closed (NC) solenoid valve, which stays closed when the coil is not energized and opens when current is applied.