The so-called electric on-off butterfly valve is one of the valves widely used in industrial pipelines. There are two main connection modes of electric switch butterfly valve, namely flange type and wafer type. Here, let's take a look at its main structural features. 　　

The pneumatic wafer type butterfly valve has a novel structure. The valve body structure is a short distance wafer type structure formed to meet the narrow pipeline space. The external leakage is zero, and the internal leakage conforms to the national standards. Pneumatic rubber lined butterfly valve, with flange and clamp connection, and sealing lining of NBR, EPDM, heat resistant EPDM, natural rubber, neoprene, fluororubber, and polytetrafluoroethylene, has a more reasonable choice according to the chemical properties of the medium. The pneumatic fluorine lined butterfly valve and anti-corrosion fluorine lined butterfly valve are composed of two halves of valve body, and the valve seat and valve body lining are integrated. When the valve is operated, as long as the full plastic valve seat and plastic lined butterfly plate touch the medium, the product can accept any medium corrosion except for molten alkali metal and element fluorine. During this process, D71F46 valve rod and butterfly plate (forged) are integrated, and the surface is evenly coated with a layer of FEP.