High-temperature bidirectional metal

Details High-temperature bidirectional metal High-temperature bidirectional metal

F - Mech Eng,Light,Heat,Weapons

16

K

251/87

F16K 5/06 (2006.01) F16K 1/228 (2006.01) F16K 1/42 (2006.01)

Patent

CA 1039262

APPLICATION FOR LETTERS PATENT FOR HIGH-TEMPERATURE BIDIRECTIONAL METAL SEAL Abstract of the Disclosure Disclosed herein are valve seals wherein an annular metallic seal member is retained in an annular recess in a valve body wall, the seal member being resiliently deformable in both axial and radial directions. A resilient annular Belleville spring portion is provided linking an inner seal- ing portion and an outer flange portion which is sealingly engaged by the valve body. When a valve employing this seal arrangement is closed, differential pressure acting from either direction urges a valve closure member and the seal member in a downstream direction, and forces the seal member and the valve closure member into tighter sealing engagement.

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