Butterfly valve

Details Butterfly valve Butterfly valve

F - Mech Eng,Light,Heat,Weapons

16

K

251/27

F16K 1/22 (2006.01) F16K 1/226 (2006.01)

Patent

CA 1076092

BUTTERFLY VALVE ABSTRACT OF THE DISCLOSURE The invention relates to a butterfly valve having a body surrounding a substantially cylindrical passageway and a closure flap which swivels within the passageway. The body is provided with an annular resilient sealing portion against which the periphery of the flap engages in the closed position. The sealing portion sprouts from the base of an annular recess in the inner surface of the body and projects radially inwardly to a position substantially flush with the surface defining the passageway. The sealing portion is also provided on each side with an axially projecting undercut lip which is spaced from the adjacent side of the recess.

299761

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