Ball valve

Details Ball valve Ball valve

1994-04-28

1996-01-09

Fox, John C.

Valves and valve actuation

Rotary valves

Ball valve

25131701, 137238, F16K 520

Patent

active

054822530

ABSTRACT:
The invention relates to a ball valve of the trunnion type, comprising a valve housing having an oppositely directed coaxially aligned inlet and outlet, each of which being provided with an internal seat, and a reversible conventional valve ball formed with a through-going passage in the form of a central bore, adapted to be brought substantially into alignment with said inlet and outlet in the open position of the valve, and wherein the valve ball is adapted to close the passage through the valve housing in the closed position of the valve, establishing a sealing effect at the seats of the valve housing, the sealing surfaces of said seats following an eccentric course in relation to the geometric center of the valve ball.

REFERENCES:
patent: 2663538 (1953-12-01), Bacchi
patent: 3410523 (1968-11-01), Kelly et al.
patent: 3484078 (1969-12-01), Haenky
patent: 5305988 (1994-04-01), Cox

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