Pneumatic differential pressure controller

Details Pneumatic differential pressure controller Pneumatic differential pressure controller

F - Mech Eng,Light,Heat,Weapons

24

F

137/34

F24F 11/04 (2006.01) F24F 11/053 (2006.01) G05D 7/03 (2006.01)

Patent

CA 1276093

ABSTRACT OF THE DISCLOSURE A differential pressure controller includes means for controllably metering a flow of air therethrough to an external control device, the metering means including a valving member and a nozzle coacting with the member for metering the flow of air. Also included is a plurality of diaphragms coacting with the valving member and defining a first chamber for receiving a first pressure signal and a second chamber for receiving a second presure signal. One of the pressure signals includes a component representative of a master control signal. Metering of the flow of air is in response to a pressure difference between the first pressure signal and the second pressure signal.

512722

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