The use of butterfly valve

Butterfly valve, also known as flap valve, is a simple structure of the regulating valve, but also can be used for low-pressure pipe medium switching control.

Butterfly valve use occasions:

Butterfly valves are widely used and suitable for flow regulation. Because the pressure loss of the butterfly valve in the pipeline is large, it is about 3 times that of the gate valve. Therefore, when selecting the butterfly valve, the pipeline system should be fully considered to be affected by the pressure loss, and the firmness of the disc plate to withstand the medium pressure of the pipe and the limit of the working temperature of the elastic valve seat material at high temperature should also be considered. The structural length and overall height of the butterfly valve are relatively small, the speed block is opened and closed, and the fluid control characteristics are good. Its structural principle 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 he can work more effectively.

Generally, in the throttling, regulating control and mud media, the structure requires short length and fast opening and closing speed. Low pressure cutoff, butterfly valve is recommended.

1, in the double-position adjustment, shrinking the channel, low noise, cavitation and gasification phenomenon, a small amount of leakage to the atmosphere, with a corrosive medium, you can use the butterfly valve.

2. When the butterfly valve is used under special working conditions such as throttling regulation or strict sealing requirement, or under severe working conditions such as low temperature, a specially designed metal sealing tape adjusting device is used for the three-eccentric or double eccentric special butterfly valve.

3, metal to metal surface seal three eccentric butterfly valve in addition to large pressure swing adsorption gas separation device program control valve, can also be widely used in petroleum, petrochemical, chemical, metallurgy, electric power and other fields, is a good valve, globe valve, etc. replacement product.

4. The midline butterfly valve is applicable to fresh water, sewage, seawater, salt water, steam, natural gas, food, medicine, oil products, etc. that require complete sealing, gas leakage, high life expectancy, and working temperature of -10 to 150 degrees. Acid and alkali and other pipelines.

5, metal to wire seal double eccentric butterfly valve is suitable for urban heating, gas supply, water supply and gas, oil, acid and alkali pipelines, as a regulation and closure device.

6. The soft eccentric butterfly valve is suitable for the bidirectional opening, closing and adjustment of ventilation and dust removal pipelines. It is widely used in gas pipelines and waterways of metallurgy, light industry, electric power, and petrochemical systems.