Since 2022, the global weather problem is very serious, and the temperature increase is very obviously  worldwide. Many countries around the world are developing in hot weather, and many places have experienced the hottest weather in the past century. This means that the environmental problems faced by human beings are too serious. Undoubtedly, from 2022, rare hot weather has occurred around the world, and extreme temperatures are also "refreshing the highest temperature record". And, environmental issues have attracted people's attention again, and the pollution-free automatic pneumatic industry, which has always been driven by a green environment, is also valued by everyone, especially the solenoid valve for automatic fluid flow control. Due to the continuous development of electronic control technology, solenoid valves are in Production applications are also more extensive, such as many chemical industries, construction and air conditioning facilities, food processing machinery, coffee machines and boilers, sprinklers and fire systems, dental equipment, etc. In these systems, solenoid valve switches play an irreplaceable role. Its reliability is also one of the decisive factors for the performance of the electronic control system.

Solenoid valve is a device controlled by electromagnetic, mainly for automatic control of fluid, which is a basic element. The direction, flow, speed and other parameters of the medium can be adjusted in the control system. Solenoid valve and different circuits can achieve effective control effect, and can ensure the accuracy and flexibility of control. There are many types of solenoid valves. Different types of solenoid valves are used in different control systems. These solenoid valves play their respective roles to achieve the purpose of adjusting speed and controlling direction.

The solenoid valve acts as the basic element, and its current will pass through the solenoid coil, which will generate a magnetic field that will pull the plunger closer to the center of the coil, which will cause the orifice to open. This is how a solenoid valve converts electrical energy into mechanical energy, and this mechanical energy is used to open or close the valve. It can also have an easy-to-control electrical interface, using metal or rubber seals. Springs are also used in solenoid valves to hold the valve in the open or closed position when the valve is in the closed position. Valve operation requires a constant current so that it can remain open. If there is no current, the valve will return to its original position.


Usually, the standard voltage values of solenoid valve coils are DC12V, AC24V, AC220V, etc. When designing electrical, the voltage value with higher frequency is AC220V or DC24V. The former does not need to set up a switching power supply in the design, the economic cost of installation is low, and the circuit structure is relatively simple, and it also shows a certain convenience in maintenance. The latter is the commonly used voltage form, and its switching power supply and other parts can be replaced or repaired at any time, which greatly reduces the pressure of subsequent equipment maintenance and improves the convenience of work.

The pneumatic industry has the advantages of energy saving, oil-free, high efficiency, low cost, safety and reliability, and simple structure. It is widely used in various machinery and production lines. Solenoid valves are used in industrial control systems to regulate media, flow, speed and other parameters. , make the entire pneumatic system work more efficiently, reliably, and save energy and reduce emissions