Butterfly valve

Details Butterfly valve Butterfly valve

1980-07-09

1982-10-12

Chambers, A. Michael

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Cleaning or steam sterilizing

137340, 251214, 277 22, 277 59, F16K 4900

Patent

active

043533884

ABSTRACT:
This invention provides a butterfly valve in which gland packing portions for preventing fluid leakage are provided between a valve stem carrying a valve closure member rotatable in a valve housing and tubular portions of the housing receiving the stem, and bearing portions for the stem are disposed outwardly of the gland packing portions. Each of the gland packing portions is divided into two sections between which a bearing member is provided to support the stem. Thus the stem is supported by the bearing portions and the bearing members.

REFERENCES:
patent: 2705016 (1955-03-01), Saar
patent: 2811981 (1957-11-01), Harris
patent: 2956824 (1960-10-01), Kuchler et al.
patent: 3021146 (1962-02-01), Sommer et al.
patent: 3325173 (1967-06-01), Alt
patent: 3377073 (1968-04-01), Harney
patent: 3474734 (1969-10-01), Stogner

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