F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
251/30, 251/45
F16K 1/22 (2006.01) F16K 1/226 (2006.01)
Patent
CA 1105439
Case 210 METALLIC SEAT ASSEMBLY FOR VALVES John M. Hinrichs Bryan, Texas Abstract of the Disclosure A valve seat assembly adapted to fit within an annular groove in a butterfly valve body. The seat assembly includes a pair of opposed metal seat rings generally L-shaped in cross section with overlapping outer legs seated and anchored in the bottom of the groove. The seat rings have flex- ble free inner end portions extending radially inwardly of the groove termina- ting at outwardly curled arcuate ends which contact the sealing surface of the valve disc and extend laterally of the groove in spaced relation to an over the adjacent valve body. A resilient soft seal is mounted between the metal seat rings and the sides of the metal seal rings are corrugated to grip and retain the soft seal in place. The end portions of each metal ring have a relatively long free length and are easily flexed laterally and radially out- wardly of the valve body by contact with the outer periphery of the disc when the disc is moved to a closed position to maintain sealing contact with the disc without requiring a high operating torque.
341197
Acf Industries Incorporated
Ridout & Maybee Llp
LandOfFree
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