where and how does Butterfly valve adopted?

Butterfly valve structure length and overall height is lesser, opening and closing speed, and has good fluid control characteristic, butterfly valve structure theory is the most suitable for making big-bore valve. When asked to butterfly valve as control flow when using, the most important when the correct choice butterfly valve size and type, can properly and efficiently.

Usually, in throttling, adjusting control and mud medium, request shorter, open the structure of fast speed (1/4 turn). Low voltage globe (differential pressure small), is recommended for butterfly valves.

In double place regulating, shrink mouth to channel, low noise, furious hole and gasification small leakage phenomenon, into the atmosphere, with abrasive media, can choose butterfly valve. Under special conditions, or require seal throttling regulation strictly, or badly worn, low temperature (cryogenic) conditions using butterfly valve, need to use special design metal seal belt adjusting device to triple eccentric or double eccentric to special butterfly valve. The midline butterfly valve applies to request bubbles-tight sealing, gas test no leakage, life in the demand is higher, working temperature – 10 degrees ~ 150 degrees of fresh water, sewage, sea water, salt water, steam, natural gas, food, pharmaceutical, oil and various alkali and other piping. Soft seal eccentric butterfly valve suitable for ventilation dust removal piping two-way on-off and adjustment, widely used in metallurgical, light industry, electric power, petroleum chemical engineering system of gas pipeline and waterway, etc. The metal to metal wire sealing double eccentric butterfly valve suitable for urban heat, gas, water, oil, gas pipe, soda acid as regulation and throttle device. The metal to metal surfaces seal triple eccentric butterfly valve except as a large variable pressure swing adsorption (PSA) air separation unit program control valves use outside, still can be widely used in petroleum, petrochemical, chemical, metallurgical, power, and other fields, when gate, globe valve good alternative products.