First, the petrochemical industry is a special industry, and the requirements for many equipment in the industry are very high, especially for products like valves, which are very important. High quality valve products are required for both oil exploitation and transportation and storage of oil, and this industry is the highest for pneumatic high-pressure ball valves, This pneumatic high-pressure ball valve is also the most ideal product for storage. 　　

3、 Elastic ball pneumatic ball valve The ball of the pneumatic ball valve is elastic. The ball and valve seat seal ring are made of metal materials, and the sealing pressure is very high. The pressure relying on the medium itself cannot meet the sealing requirements, so it is necessary to apply external force. This valve is suitable for high temperature and high pressure media. 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, so that there is a small gap between the ball and the valve seat, which can reduce the friction and operating torque of the sealing surface.