Question 2: If there is a lack of air source, how to ensure the opening and closing of pneumatic butterfly valve? It is very clear to all that pneumatic butterfly valve is used to realize various actions of the device with the help of air source, including valve opening and closing. It is not difficult to imagine that if the butterfly valve lacks such an important medium as air source, can it still operate normally? Even with manual pneumatic device, can the goal be achieved? Please remember that if the pneumatic butterfly valve can be started normally, the corresponding air source must be available first, so as to complete the opening and closing action. If the air source is gone, a manual device can be installed, which can have a double fuse.

Since the electric three-way ball valve is so excellent, there is naturally a great demand in the market. There is a great demand for electric three-way ball valves in the water supply, metallurgy, textile, energy and even paper industries. So what should these industries pay attention to when purchasing electric three-way ball valves?