Butterfly valve incorporating sleeve seals

Details Butterfly valve incorporating sleeve seals Butterfly valve incorporating sleeve seals

1993-10-14

1994-11-01

Chambers, A. Michael

Fluid handling

With casing, support, protector or static constructional...

Jacketed

251306, 251308, F16L 700

Patent

active

053600304

ABSTRACT:
An industrial butterfly valve which incorporates a disc valve mounted upon a valve stem, the butterfly valve having a tubular housing, with a gasket lining the interior passageway through the housing, the gasket and tubular housing having apertures provided therethrough for pivotally mounting of the valve stem and its disc element, and a sleeve provided upon the valve stem and lining the gasket apertures to prevent leakage of any fluid material therethrough or from contacting and deteriorating the contiguous gasket.

REFERENCES:
patent: 3100500 (1963-08-01), Stillwagon
patent: 3334650 (1967-08-01), Lowrey et al.
patent: 3778028 (1973-12-01), Graves et al.
patent: 3904173 (1975-09-01), Naylor

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