type electric butterfly valve shuts off, common external regulation and the overall external regulation of the three, has simple structure, high flow capacity, wide applicable range, high cost performance, etc, deserve to wait for electric actuator, YL can switch quantity control, PLC, DCS can also receive 4 - such as PC Ma or 1-20 5 v control signal, realizes the continuous adjustment. Electric butterfly valve according to the structure can be divided into electric line sealing butterfly valve, electric double eccentric butterfly valves, electric triple eccentric butterfly valve, electric line with rubber butterfly valve, fluorine-butterfly butterfly valves, etc. , according to the function and can be divided into electric soft sealing butterfly valve, electric metal sealing butterfly valve, electric Industrial Valves, electric butterfly valve, vacuum electric telescopic butterfly Industrial Valves, electric health level, etc. , according to the mode of connection can be divided into electric butterfly valve, electric flanged butterfly valves, electric welding butterfly Industrial Valves and so on. Electric butterfly valve is widely used in water supply and drainage, mine, metallurgy, environmental protection, paper making, chemical industry, etc. In the selection, according to the medium temperature is different, in normal temperature, can choose the electric soft sealing butterfly valve, at higher temperature ( More than 150 degrees) , you must choose the electric metal sealing butterfly valve. Middle sealing butterfly valve is suitable for the two control switch, and triple eccentric butterfly valve, for is approximate equal percentage flow characteristic, is suitable for the operation condition of the need to continuously adjust. For the corrosive medium, can use the electric fluorine-butterfly or electric line with rubber butterfly valve. In need of pumping air into vacuum state, and electric vacuum butterfly valve can be chosen. On large diameter ducts or flue gas pipeline, electric valve, electric butterfly valve is applicable to the flue gas. As the process of continuous improvement, and the progress of materials science, electric butterfly valve used in modern industry will be more extensive.

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