If the butterfly valve is required to be used as flow control, the main thing is to correctly select the size and type of the valve. The structure principle of butterfly valve is particularly suitable for making large diameter valves. Butterfly valves are not only widely used in petroleum, gas, chemical, water treatment and other general industries, but also used in the cooling water system of thermal power stations.???

The pneumatic fluorine lined butterfly valve and anti-corrosion fluorine lined butterfly valve adopt the combination of two halves of valve body, and the valve seat and valve body lining are integrated. When the valve is working, only the full plastic valve seat and the plastic lined butterfly plate are in contact with the medium, and the product can withstand the corrosion of any medium except molten alkali metal and element fluorine. Among them, D71F46 valve rod and butterfly plate (forged) are integrated, and the surface is evenly coated with a layer of FEP. The inner surface of the valve body channel is smooth, the fluid resistance is small, the CV value is high, the flow capacity is strong, and the torque is moderate. The four stage sealing structure is adopted, and the temperature resistant and anti-aging SI rubber elastic gasket valve seat is equipped outside the sealing surface, completely achieving zero leakage of the medium.