What is the working principle of solenoid valve and what are its uses

Solenoid valve is a valve that uses electromagnetic force to control fluid flow. It is composed of a solenoid coil, a valve core, a spring and a valve seat. Its function is to control the flow and direction of fluid and is widely used in industrial and civil fields, such as liquid control, gas control, equipment control, safety control and medical equipment.

The working principle of solenoid valve

Solenoid valve is a valve that uses electromagnetic force to control fluid flow. It consists of solenoid coil, valve core, spring and valve seat.

When no current passes through the solenoid coil, the spring presses the valve core against the valve seat, closing the flow channel. When current passes through the solenoid coil, the coil generates electromagnetic force, which attracts the valve core and opens the flow channel.

Use of solenoid valve

Solenoid valve is widely used in various industrial and civil fields. Its main function is to control the flow and direction of fluid:

• Liquid control: Used to control the flow of water, oil, gas and other liquids. For example, used for water inlet and drain in washing machines and dishwashers.
• Gas control: Used to control the flow of air, natural gas and other gases. For example, used in air conditioning systems to switch the flow of refrigerant on and off.
• Equipment control: Used to control the start and stop of pneumatic or hydraulic devices. For example, it is used to control the movement of cylinders on automated assembly lines.
• Safety control: Used to prevent leakage of dangerous gases or liquids. For example, used in gas lines to cut off gas flow.
• Medical equipment: Used to control the flow of fluids in medical equipment such as infusion and anesthesia.

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