Application medium and working condition of butterfly valve

2021-05-27

Butterfly valve is mainly used for liquid, gas low pressure large diameter pipeline. It is suitable for the occasions where the pressure loss requirement is not high, the flow regulation is needed, and the opening and closing requirements are fast; Generally, the temperature is below 300 ℃ and the pressure is below 40 kg). The medium is generally used for water and gas, and the medium requirement is not high. Granular medium can also be used.

1) The media that butterfly valve can transport and control are water, condensate, circulating water, sewage, seawater, air, gas, liquid natural gas, dry powder, slurry, fruit slurry and mixture with suspended solids.
2) Usually, in throttling, regulating control and mud medium, short structure length and fast opening and closing speed (1 / 4 turn) are required. Low pressure cut-off (low pressure difference), butterfly valve is recommended.
3) Butterfly valve can be used in double position adjustment, necking channel, low noise, cavitation and gasification, a small amount of leakage to the atmosphere and abrasive medium.
4) When the butterfly valve is used under special working conditions, such as throttling regulation, strict sealing requirement, severe wear and low temperature (cryogenic), the special butterfly valve with special designed metal sealing belt regulating device, tri eccentric or Bi eccentric, shall be used.
5) Soft seal eccentric butterfly valve is suitable for bidirectional opening and closing and adjustment of ventilation and dust removal pipeline, and is widely used in gas pipeline and water channel of metallurgy, light industry, electric power and petrochemical system.
6) 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, as a regulating and throttling device.
7) Metal to metal face sealed triple eccentric butterfly valve is not only used as program control valve of large PSA gas separation unit, but also widely used in petroleum, petrochemical, chemical, metallurgical, electric power and other fields. It is a good substitute for gate valve and stop valve.

MST butterfly valve is suitable for fresh water, sewage, sea water, salt water, steam, natural gas, food, medicine, oil, various acid and alkali and other pipelines which require complete sealing, zero leakage in gas test, high service lie and working temperature from - 10 ℃ to 150 ℃.

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