Ball valve

Details Ball valve Ball valve

1990-09-21

1991-08-06

Walton, George L.

Valves and valve actuation

Mechanical movement actuator

Particularly packed or sealed

251315, 277111, 277200, F16K 4110

Patent

active

050370650

ABSTRACT:
A sealing system in a ball valve is designed with a bellows which carries a sliding packing ring on the side of the valve housing and presses against a sliding packing ring on the side of the pivot shaft. The bellows is protected by a guard ring. The ball valve has a shaft coupled to a cap through a releasable locking device.

REFERENCES:
patent: 600249 (1898-03-01), Parsells
patent: 3096966 (1963-07-01), McFarland, Jr.
patent: 3206165 (1965-09-01), Salmon et al.
patent: 3403917 (1968-10-01), MacSpadder et al.
patent: 3427034 (1969-02-01), Lowe
patent: 3902696 (1975-09-01), Ito et al.
patent: 3970285 (1976-07-01), Lonn
patent: 4553564 (1985-11-01), Baram
Sealol Bulletin HP12 "2200 Class Packless Valves", 6/1961, 4 pages.
Sealol "Ball Valves", 6/1961, 1 page.
Eagle Packless Valves, Bulletin 2200, EG&G Sealol Eagle, 5/1972, 12 pages.
ACHEMA-88 Brochure-Tradeshow, 1/89, p. 15.

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