Control regulator having a fabric reinforced diaphragm

F - Mech Eng,Light,Heat,Weapons – 16 – K

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F16K 7/17 (2006.01) F16K 31/126 (2006.01) G05D 16/16 (2006.01)

Patent

CA 1274445

21-56(5535)A CONTROL REGULATOR HAVING A FABRIC REINFORCED DIAPHRAGM ABSTRACT OF THE DISCLOSURE A rolling diaphragm regulator valve is affixed in a globe type valve body and includes a nonstretchable fabric reinforced elastomer diaphragm for covering and uncovering, by rolling action in response to changes in pressure in a control chamber, a plurality of apertures in a baffle positioned between the valve body inlet and outlet. An axially movable spring-biased nose piece, mounted behind the diaphragm, provides a surface over which the diaphragm is draped for controlling substantially all movement of the diaphragm. A travel indicator is operable by movement of the nose piece to provide a visual indication of the position of the valve. In one embodiment the baffle is notched adjacent to a peripheral mounting surface of the diaphragm, whereat the ends of the fabric reinforcement are exposed to permit entrained gases to escape. Other embodiments include areas of the diaphragm, exposed to the apertures, that have pinholes in the elastomer surface and that have the fabric surface exposed.

516121

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