From the material, it can be divided into: carbon steel ball valve, stainless steel 304 ball valve, 316 ball valve and copper ball valve; According to pressure, it can be divided into: high-pressure ball valve and low-pressure ball valve, low-pressure pneumatic ball valve; Mainly used in corrosive pipelines with water as medium

3、 Features of electric on-off butterfly valve The butterfly valve also has its unique features and advantages. The start and close of the butterfly valve are very simple and fast, and the structure is simple. It can even transport mud, a special fluid. Under low pressure, the sealing performance of the butterfly valve is very good, also because of these reasons, The butterfly valve has good regulating capacity. In addition, the butterfly valve has one of the biggest advantages over other types of valves. The butterfly valve has a two-way sealing property. No matter what the direction of the fluid, it can have a sealing blocking effect. That is to say, the butterfly valve is not affected by the direction of the fluid, which really reduces a lot of troubles during installation.