Butterfly valve is a kind of valve which is used to open, close or adjust the flow of medium by rotating the 90° of disc type. Butterfly valve Not only simple structure, small size, light weight, the material consumption of the province, the installation of small size, small driving torque, easy to operate, rapid, and can also have a good flow adjustment function and close the sealing characteristics, is the fastest development in the past more than 10 years one of the valve varieties. Butterfly valves are widely used. Its use of varieties and quantities continue to expand, and to high temperature, high pressure, large caliber, high sealing, long life, excellent regulation characteristics, as well as a valve multi-function development. Its reliability and other performance indicators have reached a high level.Butterfly Valve
In order to meet the high and low temperature, strong erosion, long life and other industrial applications of the requirements of the use of metal seal butterfly valve has been a great development. With high temperature resistance, low temperature, strong corrosion resistance, strong erosion, the application of high strength alloy material in butterfly valve makes the metal seal butterfly valve widely used in the industrial fields such as high-low temperature, strong erosion, long life and so on, with large caliber (9~750mm), high pressure (0MPa) and wide temperature range ( -196~ 606℃ butterfly valve, so that the butterfly valve technology to achieve a new level.Butterfly Valve
Butterfly valve is suitable for flow regulation. As the butterfly valve in the tube in the pressure loss is relatively large, about three times times the gate valve, so in the selection of butterfly valve, should fully consider the pipeline system under pressure loss, but also consider the closure of the butterfly plate under the pressure of the pipe medium strength. In addition, consideration must also be given to the limitation of the working temperature of resilient seat materials at elevated temperatures.Butterfly Valve
The butterfly valve's structure length and the overall height are small, the opening and closing speed is quick, and has the good fluid control characteristic. The structure principle of butterfly valve is most suitable for making large caliber valves. When the butterfly valve is required to be used for flow control, the most important thing is to correctly select the butterfly Valve's specification and type so that it can work properly and effectively.Butterfly Valve
Usually, in the throttling, regulating control and slurry medium, the requirement of short structure length, fast opening and closing speed, low voltage cut-off (small pressure difference), recommended selection of butterfly valve. The butterfly valve can be selected in the double position adjusting, reducing channel, low noise, cavitation and vaporization phenomenon, leaking to the atmosphere, and abrasive medium. Under special working conditions, throttle regulation, or require strict sealing, wear serious, low temperature (deep cold) and other operating conditions.Butterfly Valve