Butterfly valve construction having a composite seat

Details Butterfly valve construction having a composite seat Butterfly valve construction having a composite seat

F - Mech Eng,Light,Heat,Weapons

16

K

251/29

F16K 1/226 (2006.01) F16L 23/02 (2006.01)

Patent

CA 1287828

Abstract of the Disclosure A butterfly valve having a composite, reinforced seat, the valve having a one piece body defining a radially inwardly extending annular rib, the valve seat being a U- shaped annular member of a generally resilient material and having a radially outwardly opening channel which engages the rib of the valve body to provide an interlocking engagement between the valve seat and the valve body, the seat including a series of generally U-shaped structural members made of a material more rigid than the resilient material of the seat, the U-shaped member being bonded to the seat, the U-shaped members being spaced sufficiently to permit distortion of the seat so that it can be inserted in the valve body.

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