A valve assembly having a housing, and a valve portion disposed in the housing, where the valve is able to change between an open position and a closed position. The valve assembly also includes a variable pneumatic device disposed in the housing, which is able to change between a first configuration and a second configuration, and an inner cavity in fluid communication with the housing. An exhaust aperture is formed as part of the housing, and as pressure builds in the variable pneumatic device, the variable pneumatic device changes from the first configuration to the second configuration such that air is prevented from flowing around the variable pneumatic device, and air flowing through the valve body passes through the exhaust aperture.
Excess pressure claibrated guage
2016-08-30
Patent
Elektronische Ressource
Englisch
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