Overview of pneumatic ball valves. It is one of the valves widely used. It appeared very early and was popularized later. Its working principle is the same as that of the plug valve. The valve is opened and closed by rotating the valve core, but it is lighter and smaller than the opening and closing of the plug valve. It can be made into a large caliber valve. The pneumatic ball valve is reliable in sealing, simple in structure and convenient in maintenance. The sealing surface and the ball are often closed, and are not easily eroded by the medium. At present, the diameter of pneumatic ball valve abroad has reached 3050cm, which is widely used in petroleum, chemical industry, metallurgy, textile, food, atomic energy, aviation and other sectors.

Abstract: Aiming at the application of wireless communication technology in valve pneumatic device, the application characteristics of various common wireless communication technologies are analyzed, and a solution based on Bluetooth technology is proposed. In addition, three implementation forms of Bluetooth protocol stack are simply analyzed, and the embedded model is selected as the implementation form of Bluetooth wireless communication. The hardware system structure and software flow of the Bluetooth handheld operator are introduced emphatically, and the wireless remote control operation of the valve pneumatic device with the Bluetooth communication module is realized.