Vacuum pneumatic valve selection principle

to know about general structure principle of vacuum pneumatic valves are clear.
, for the same kind of vacuum pneumatic valves to pass the structure, performance, parameters, applicable scope, air leakage rate, seal material, using the methods of comprehensive factors comparison choose the pneumatic valve figure number.
, vacuum pneumatic valve drive way has a manual, electric, pneumatic three. Driven by the way of pneumatic valve from the vacuum system needs to consider.
and install vent pneumatic valve in the vacuum chamber, according to the vacuum levels of indoor air, need to open the vacuum chamber gate length, choose deflated model of pneumatic valve.
, vacuum pneumatic valve can be used alone, the configuration between the vacuum chamber and vacuum pump or the vacuum chamber. The vacuum system is generally necessary components. But most of the vacuum pneumatic valve is used on vacuum pump group.
, ultra high vacuum pneumatic valves are commonly used in ultra high vacuum system.
, electromagnetic vacuum type and basic parameters of the pneumatic valve industry standards have been established in our country.
, vacuum pneumatic diaphragm valve, because of its simple structure, small volume, light weight, good sealing performance, applicable to the former level and drainage pipeline and the temperature was minus ℃ ~ ℃ non-corrosive gases.
, glass vacuum piston, ( Also called kock much used for vacuum measurement calibration system and glass vacuum system.