There was a period of stagnation in the development of pneumatic ball valves in China for some time, and after the adjustment of technical level, there has been significant improvement. Until today, the development has gradually stabilized, and more products have been introduced, taking the development level of the country's industrial equipment to a new height. China's valve industry has become one of the main development industries, increasing market competitiveness, And market development potential, it is not a small challenge to the foreign valve market.

4. The electric butterfly valve needs to adjust the flow in use and is controlled by a pneumatic actuator.