Electric butterfly butterfly valve installed in the pipe diameter direction. In the electric butterfly Valve Body cylindrical channel, the disc-shaped disc rotates about the axis, the rotation angle is between 0 ° ~ 90 °, when rotated to 90 °, the valve is fully open state. Electric butterfly valve structure is simple, small size, light weight, only a few components. And just turn 90 ° to quickly open and close, easy to operate, while the valve has good fluid control features. When the electric butterfly valve is fully open, the thickness of the disc is the only resistance of the medium flowing through the valve body. Therefore, the pressure drop generated by the valve is small, so it has better flow control characteristics. Electric butterfly valve spring seal and metal seal two types of seal. Flexible sealing valves, seals can be embedded in the body or attached to the butterfly plate around. Valves with metal seals generally have a longer life than elastomeric valves, but are harder to seal completely. Metal seals can adapt to higher operating temperatures, while flexible seals have temperature-limited defects. If you want to use electric butterfly valve as a flow control, the main thing is the correct choice of valve size and type. Structural principle of electric butterfly valve is particularly suitable for the production of large-caliber valves. Electric butterfly valve not only in petroleum, gas, chemical, water treatment and other general industry has been widely used, but also used in thermal power station cooling water system. Commonly used electric butterfly valve with electric butterfly valve and flange-type electric butterfly valve two. On the folder electric butterfly valve is to use double-headed bolts to connect the valve between the two pipe flanges, flange-type electric butterfly valve is equipped with a flange on the valve with bolts on both ends of the flange on the pipe flange connection.
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