Anvendelsesmedium og arbejdstilstand for sommerfuglventil

2021-05-27

Sommerfuglventilbruges hovedsagelig til væske, rør med stor diameter med lavt tryk med stor diameter. Det er velegnet til de tilfælde, hvor kravet om tryktab ikke er højt, flowreguleringen er nødvendig, og kravene til åbning og lukning er hurtige; Generelt er temperaturen under 300 â „ƒ og trykket er under 40 kg). Mediet bruges generelt til vand og gas, og mediet kravet er ikke højt. Granulært medium kan også anvendes.

1) Medierne dersommerfuglventilkan transportere og kontrollere er vand, kondensat, cirkulerende vand, spildevand, havvand, luft, gas, flydende naturgas, tørt pulver, gylle, frugtopslæmning og blanding med suspenderede faste stoffer.
2) Normalt kræves der ved regulering af regulering og muddermedium kort strukturlængde og hurtig åbnings- og lukkehastighed (1/4 omdrejning). Lavtryksafskæring (lav trykforskel),sommerfuglventilanbefales.
3) Sommerfuglventil 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 sommerfuglventil is used under special working conditions, such as throttling regulation, strict sealing requirement, severe wear and low temperature (cryogenic), the special sommerfuglventil with special designed metal sealing belt regulating device, tri eccentric or Bi eccentric, shall be used.
5) Soft seal eccentric sommerfuglventil 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 sommerfuglventil 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 sommerfuglventil 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 sommerfuglventil 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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