Metallic seal for high performance butterfly valve

Details Metallic seal for high performance butterfly valve Metallic seal for high performance butterfly valve

F - Mech Eng,Light,Heat,Weapons

16

K

251/29

F16K 1/22 (2006.01) F16K 1/228 (2006.01)

Patent

CA 1312851

Abstract of the Disclosure A high performance butterfly valve utilizing a thin sheet metal annulus to provide sealing between a valve casing and a rotary disc type valving member. The design of the sealing element provides for a self-sealing at all pressures, with augmentation of the sealing action as a result of applied pressure differential. As maximum stresses in the thin metal sealing element are approached, the element becomes supported at an intermediate region, enabling effective performance at both low and high pressure limits.

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