Ball plug valve

Details Ball plug valve Ball plug valve

1987-09-14

1989-02-07

Chambers, A. Michael

Valves and valve actuation

With means to increase head and seat contact pressure

With positive reduction

251367, G16K 2500

Patent

active

048026514

ABSTRACT:
A shut-off or flow control valve comprises a valve body including a cylindrical cavity with a hemispherical end, which rotatably receives a cylindrical plug with a hemispherical end in a close tolerance, wherein a flow passage with a central axis generally passing through the center of a spherical surface including the hemispherical surface of the plug and intersecting the central axis of the plug in an oblique angle lines up with the flow passage disposed through the valve body when the plug is rotated to the "open" position, while the plug blocks the flow passage through the valve body when it is rotated to the "closed" position.

REFERENCES:
patent: 3982727 (1976-09-01), Nelimarkka

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