Application of electric butterfly valve

Electric butterfly valves belong to a variety of electric valves and electric regulating valves. Electric butterfly valve connection methods mainly include: flange type and wafer type; electric butterfly valve sealing forms mainly include: rubber seal and metal seal. The electric butterfly valve controls the switch of the butterfly valve through the power signal. The product can be used as a shut-off valve, control valve and check valve for piping systems. With manual control device, once power failure occurs, it can be temporarily operated manually without affecting the use.
Electric butterfly valves are suitable for occasions that require flow adjustment. Since the pressure loss of the butterfly valve in the pipeline is relatively large, it is about three times that of the gate valve. Therefore, when selecting the butterfly valve, the influence of the pressure loss of the pipeline system should be fully considered, and the strength of the butterfly plate to withstand the pressure of the pipeline medium should also be considered when it is closed. sex. In addition, it is necessary to consider the limitation of the working temperature of the elastic valve seat material at high temperature. The structural length and overall height of the butterfly valve are small, the opening and closing speed is fast, and it has good fluid control characteristics. The structural principle of the butterfly valve is most suitable for making large-diameter valves. When the butterfly valve is required to control the flow, the most important thing is to correctly select the size and type of the butterfly valve so that it can work properly and effectively. Centerline butterfly valve usually requires short structure length and fast opening and closing speed (1/4 revolution) in throttling, regulating control and mud medium. Low pressure cut-off (small pressure difference), butterfly valve is recommended. Butterfly valve can be used when two-position adjustment, narrow passage, low noise, cavitation and vaporization phenomenon, a small amount of leakage into the atmosphere, and abrasive media. When the butterfly valve is used under special conditions such as throttling adjustment, or strict sealing requirements, or severe abrasion, low temperature (cryogenic), etc., a special designed metal seal belt adjustment device is required for triple eccentric or double eccentricity. Butterfly valve.