Pneumatic cut off ball valve is a commonly used industrial automation control device, widely used in energy, chemical, petroleum, pharmaceutical and other fields. It is based on the principle of aerodynamics, by controlling the pressure of the air source and the direction of entering the cylinder to control the flow of the medium. This paper will introduce the working principle and application of pneumatic cut-off valve.
The working principle of the pneumatic cut ball valve mainly includes two key parts: the actuator and the control device. The actuator is usually composed of a pneumatic actuator and a valve body. The pneumatic driver receives the signal of the control device, converts the air pressure into action, and acts through the valve body to control the on-off and flow of the medium. The control device is generally composed of a pressure controller, signal input and output device, etc., for receiving, processing and sending control signals. Through the adjustment of the controller, the air pressure of the pneumatic driver can be changed, and then the valve body can be controlled.
Pneumatic cut off ball valves are widely used. In the field of energy, it is used to control the flow and pressure of gas, steam and other media to ensure the safety and stability of the system. In the chemical industry, it is used to control the flow, temperature and concentration of various liquid and gas media to achieve automatic control of the process; In the petroleum industry, it is used to control the on-off and flow of oil and gas pipelines to ensure the safety and stability of the production and transportation process of petroleum products; In the pharmaceutical field, it is used to control the flow and pressure of pharmaceutical liquids to ensure the production quality and hygiene standards of pharmaceuticals.
In general, the pneumatic cut off ball valve is an important industrial automation control equipment, with high reliability, fast reaction speed, strong adaptability and so on. It has played a key role in various fields, improving the efficiency and quality of industrial production, and ensuring the safety and stability of the production process.