Spherical sealtight valve for fluids

Details Spherical sealtight valve for fluids Spherical sealtight valve for fluids

1979-06-28

1981-05-05

Cline, William R.

Valves and valve actuation

Rotary valves

Ball valve

251367, F16K 500

Patent

active

042654270

ABSTRACT:
A valve body for a spherical-shutter valve for gases or fluids is disclosed, said body consisting of two hemispherical hoods enclosing the shutter and to be welded along their great circle, two couples of half-rings being welded in symmetrical positions relative to the sphere equator to provide sealing action: an annular channel is furthermore provided in the meridian direction immediately beneath the welding seam line to prevent welding material from entering the valve interior and to house a photographic film to take nondestructive control pictures.

REFERENCES:
patent: 3006602 (1961-10-01), Usab
patent: 3323537 (1967-06-01), Shafer
patent: 3339887 (1967-09-01), Hutchens
patent: 3460802 (1969-08-01), Colby et al.
patent: 3508736 (1970-04-01), Rhodes et al.
patent: 3678556 (1972-07-01), Shafer
patent: 3794291 (1974-02-01), Suyama
patent: 3841601 (1974-10-01), Grove et al.
patent: 3883112 (1975-05-01), Milleville et al.

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