Compared with the past, the appearance design of electric ball valves sold at present has changed a lot. In addition to the compact shape, the beauty of the appearance and design elements have also changed a lot. Some electric ball valves also pursue fashion trends and have also changed a lot in color, but these do not affect the use of the equipment itself. In addition to the appearance changes, the modern electric ball valve has also upgraded the product quality.

? The electric butterfly valve adopts the metal sealed valve, which generally has a longer life than the elastic sealed valve, but it is difficult to achieve complete sealing. Metal seal can adapt to higher working temperature, while elastic seal has the disadvantage of temperature limitation. 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.