Butterfly valve applicable occasions

Butterfly valves are suitable for flow regulation. Since the pressure loss of the butterfly valve in the pipeline is relatively large, the robustness of the butterfly plate to withstand the pressure of the pipeline medium when closed should also be considered. In addition, the operating temperature limitations of the elastomeric seat material at elevated temperatures must also be considered. 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 a butterfly valve is required to control flow, the most important thing is to correctly select the size and type of butterfly valve so that it can work properly and effectively.
Usually, in throttling, regulating control and mud media, it is required to have a short structure length and fast opening and closing speed (1/4 turn). For low pressure cut-off (small pressure difference), butterfly valve is recommended.
Butterfly valves can be used when there are two-position adjustments, constricted channels, low noise, cavitation and vaporization phenomena, a small amount of leakage into the atmosphere, and abrasive media.
When throttling is adjusted under special working conditions, strict sealing is required, or butterfly valves are used under severe wear, low temperature (cryogenic) and other working conditions, a specially designed metal sealing belt adjustment device for triple eccentricity or double eccentricity is required. butterfly valve.
Butterfly valves are suitable for fresh water, sewage, sea water, salt water, steam, natural gas, food, medicine, oil and various products that require complete sealing, zero gas test leakage, high life requirements, and operating temperatures between -10 degrees and 150 degrees. Acid-base and other pipelines.
Soft-sealed eccentric butterfly valves are suitable for bidirectional opening, closing and adjustment of ventilation and dust removal pipelines. They are widely used in gas pipelines and waterways in metallurgy, light industry, electric power, and petrochemical systems.
Metal-to-metal wire sealed double eccentric butterfly valve is suitable for urban heating, gas supply, water supply and other gas, oil, acid and alkali pipelines, etc., as a regulating and throttling device.
In addition to being used as program control valves for large-scale pressure swing adsorption (PSA) gas separation devices, metal-to-metal surface sealed triple eccentric butterfly valves can also be widely used in petroleum, petrochemical, chemical, metallurgy, electric power and other fields. They are an excellent choice for gate valves and globe valves. replacement product.