Quarter turn ball valve

Details Quarter turn ball valve Quarter turn ball valve

1990-11-05

1992-08-25

Walton, George L.

Fluid handling

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

Jacketed

251315, F16K 506, F16K 2706

Patent

active

051410184

ABSTRACT:
A quarter turn cast iron ball valve where the ball inside is cast of metal, solid or hollow, and forms a cylinder or tube across the inside. This tube is "open" on both ends so that when the ball is seated and turned to its open position there is a diametrically extended flow passage allowing the fluid to flow through the valve. The ball is covered with "Teflon" on the periphery of the ball as well as on the inside periphery of the tube. The gland plate has a locking mechanism which enables the valve to be quickly set to a desired position on a permanent basis and be locked in either the full, opened or closed position.

REFERENCES:
patent: 3073336 (1963-01-01), Johnson
patent: 3334650 (1967-08-01), Lowrey et al.
patent: 3537473 (1970-11-01), DeZurik, Jr.
patent: 3662778 (1972-05-01), Leopold, Jr. et al.
patent: 3857546 (1974-12-01), Quirk
patent: 4219046 (1980-08-01), West et al.
patent: 4532957 (1985-08-01), Battle et al.
patent: 4696323 (1987-09-01), Iff

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