The difference between stop pneumatic valve and butterfly valve

stop pneumatic valve compared with butterfly valve performance is good, the regulation of adjustment of pneumatic valve regulation performance is poorer, commonly used in place of simply switch.
on the other hand, by the pneumatic butterfly valve than pneumatic valve to the high price. Pneumatic valve:
butterfly butterfly pneumatic valve, pneumatic valve also called flap is a simple structure of the pneumatic valve adjustment. Due to the adjustment of pneumatic valve should not be closely cooperate with the wall, the only applies to regulate traffic, cannot be used to cut off the line, often used in conveying air and flue gas pipeline to adjust flow. Pneumatic valve is used with the pneumatic butterfly valve rod rotation of the circular disc for opening and closing parts, in order to realize the opening and closing action of pneumatic valve. Control pneumatic valve mainly used the truncated pneumatic valve, can be designed to have the function of the adjustment or truncation and adjustment. The butterfly pneumatic valve on the low voltage and medium caliber pipe used more and more.
as pneumatic valve: compared with the pneumatic valve gate, simple structure, manufacture and maintenance is convenient, good regulation performance, widely used in all sorts of medium in the pipeline. But fluid through by the change in the direction of pneumatic valve from time to tome, so resistance is bigger, should not be used for material viscosity, containing suspended matter and crystallization pipeline, unfavorable also object completely dynamic valve and pneumatic valve of low vacuum system. By the pneumatic valve is widely used in all kinds of pressure fluid pipe, the steam and compressed air line is commonly used by the pneumatic valve. By the pneumatic valve is a kind of commonly used truncation pneumatic valve, is mainly used to connect or truncation pipeline medium, is generally not used to adjust flow. By the pneumatic valve for pressure, temperature range is very big, but is generally used in medium and small diameter pipeline.