In recent years, China has become one of the global leaders in the manufacturing of industrial components, particularly in fluid control technology. One of the key players in this field is the production of solenoid valves, especially normally closed solenoid valves. These valves play an essential role in controlling the flow of fluids and gases in various industrial systems. The normally closed type, which remains closed when de-energized and opens when energized, is one of the most commonly used solenoid valve configurations. This article explores the prominent manufacturers in China who specialize in producing these essential components.

What is a Normally Closed Solenoid Valve? A solenoid valve is an electromechanically operated valve used to control the flow of liquids or gases. The “normally closed” solenoid valve is designed to remain closed when there is no electrical power applied to the solenoid coil. Once the coil is energized, it activates a plunger or piston mechanism that opens the valve, allowing the flow to pass through. These valves are widely used in applications that require precise control of fluid flow, such as in HVAC systems, water treatment, pneumatic systems, and gas pipelines. China’s Leading Manufacturers of Normally Closed Solenoid Valves