Second, the working principle of the pneumatic plug valve The parts that control the work of the pneumatic plug valve are called the headstock parts. The function of the headstock parts is to open and close the valve through the 90 degree rotation of the valve stem. The pneumatic plug valve is a valve with a very simple structure. There is a cylinder inside the pneumatic plug valve. The role of the cylinder is to squeeze the air inside the pneumatic plug valve to generate power. 　　

The most important part of the installation of electric switch butterfly valve is the installation of electric valve, of which the electric device is the most important aspect. Pay special attention to the decoration of electric device when installing it. Because the main power of the electric switch butterfly valve is from electricity, it also needs a thrust to control its size during the whole operation process. During the installation of the electric switch butterfly valve, attention must be paid to the correct installation of the electric device. If the electric device is not installed correctly, it will lead to overload operation, Before the formal installation of the electric switch butterfly valve, it is necessary to have a more simple and clear understanding of the installation of the electric device.