Replaceable adjustable butterfly valve

Details Replaceable adjustable butterfly valve Replaceable adjustable butterfly valve

F - Mech Eng,Light,Heat,Weapons

16

K

251/31

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

Patent

CA 1143358

REPLACEABLE ADJUSTABLE BUTTERFLY VALVE SEAT Abstract This invention concerns a butterfly valve having a resilient, adjustable body seat for the pivoting disc. The seat comprises a T-shaped elastomeric ring which is confined at one end by the transverse wall of an annular groove in the valve body and that another end by a clamping ring which slides along the wall of the flow passage extending through the body. The clamping ring is forced against the seat ring by a plurality of individual screw actuators spaced around its circumference and therefore selected portions of the seat ring can be compressed as needed to produce a leak-free seal around the entire periphery of the pivoting disc. The T-shaped elastomeric ring is held in place solely by mechanical forces in order to permit removal, maintenance, and replacement thereof.

373748

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