Automatic fluorine lined butterfly valve, is the company patented products belong to the clamp/flange type fluorine lined butterfly valve series; It is composed of pneumatic actuator and fluorine lined butterfly valve, the valve body part can be combined with pneumatic, electric actuator, to form a variety of different types of butterfly valve specifications. The product is divided into full - lined butterfly valve and half - lined butterfly valve according to its lining material. Fully lined butterfly valve due to the fluorine lined butterfly valve body cavity, at the same time on the butterfly plate and stem for fluorine lined plastic, and in the valve base is provided with silicone rubber gasket, used to adjust the seat base surface pretightening, in order to achieve sealing performance with the butterfly plate.

The valve body is separated, and the sealing at both ends of the valve shaft is controlled by the rotating base between the butterfly plate and the valve seat by the fluorine rubber ring, so that the valve shaft does not contact with the medium in the chamber to ensure the sealing without leakage. The valve has the advantages of compact structure, small size, reliable operation, good sealing and easy maintenance, convenient installation, strong adaptability and so on. It is suitable for any corrosive medium except molten alkali metal and element fluorine. It is an ideal product for centralized remote control or local control in chemical industry, petroleum, medicine, food, iron and steel smelting, paper making, water and electricity, environmental assurance and other industrial automatic control systems.