A Normally Open Solenoid Valve (NOSV) is a key component in fluid and gas control systems, often used in industrial and commercial applications. These valves are designed to regulate the flow of fluids such as water, air, oil, and other gases. With their simple yet efficient design, NOSVs are employed in numerous automation systems where precise and fast control over fluid flow is required. This article will delve into the working principles, applications, advantages, and common considerations when using a Normally Open Solenoid Valve.
What is a Normally Open Solenoid Valve? A Normally Open (NO) Solenoid Valve is a type of electrically controlled valve that remains open in its default state (when no electrical current is applied) and closes when the solenoid is energized. This contrasts with the Normally Closed (NC) solenoid valve, which stays closed until actuated. The valve consists of several key parts： a solenoid coil, a plunger (or valve stem), a spring, and a valve body with a fluid port. When electrical current is applied to the solenoid coil, it creates a magnetic field that moves the plunger, causing the valve to close. When the electrical current is removed, the spring mechanism pushes the plunger back to its default open position, allowing the fluid to flow again.