Introduction of Pneumatic Butterfly Valve Selection for Fast Opening and Closing Speed

In the medium of throttling, regulating control and mud, the structure length is short and the opening and closing speed is fast. Low pressure cut-off, pneumatic butterfly valve is recommended. Butterfly valves can be selected when there are small leakage to the atmosphere and corrosive media in the channel of double-position adjustment, shrinkage, low noise, cavitation and gasification. When using butterfly valves under special conditions, such as restriction regulation or strict sealing requirements, or severe wear and low temperature, special design metal sealing bands should be used. A special pneumatic butterfly valve with three or double eccentricities for throttling device.
Metal-to-metal sealing tri-eccentric pneumatic butterfly valve can be widely used in petroleum, petrochemical, chemical, metallurgical, power and other fields besides being used as program control valve of large pressure swing adsorption gas separator. It is a good substitute for gate valves and globe valves.
The midline pneumatic butterfly valve is suitable for freshwater, sewage, seawater, brine, steam, natural gas, food, medicine, oil products, various acids and alkalis and other pipelines which require complete sealing, gas leakage, high service life and working temperature of - 10 - 150 degrees.

Metal-to-metal double eccentric pneumatic butterfly valve is suitable for urban heating, gas supply, water supply and gas, oil, acid and alkali pipelines, as a regulating and closing device. Soft eccentric pneumatic butterfly valve is suitable for the two-way opening and closing of ventilation and dust removal pipelines, and is widely used in gas pipelines and waterways of metallurgical, light industry, electric power and petrochemical systems.