Chinese pneumatic switch butterfly valve enterprises need to establish a scientific, comprehensive and complete technical training system, and systematically improve their intellectual property rights. The establishment of the training and service role of colleges and research institutions can link up with basic education and improve it more reasonably, connect the strength of various institutions and departments, and jointly play their respective functions and advantages. In addition, it is also necessary to further improve the market atmosphere for technological innovation and product development, actively advocate and encourage new product research and development, and all enterprises and scientific research institutions and departments should establish complete rules and regulations for self-developed technologies and products. If the above contents can be achieved, the domestic valve production in China will enter the international high-end valve market soon.

An elastic sphere obtains elasticity by opening an elastic groove at the lower end of the inner wall of the sphere. When the channel is closed, use the wedge head of the valve rod to expand the ball and compress the valve seat until it is sealed. Loosen the wedge head before rolling the ball, and then the ball will return to its original shape, making a small gap between the ball and the valve seat, which can reduce the conflict and operating torque of the sealing surface.