Method of making shells for swing plate valves

Details Method of making shells for swing plate valves Method of making shells for swing plate valves

1982-01-04

1984-02-14

Ramsey, Kenneth J.

Fluid handling

Miscellaneous

228170, 291567R, 72338, 137875, F16K 2710, B23K 3102

Patent

active

044310293

ABSTRACT:
A method of forming a flat plate swing valve shell from a commercially available forged or swaged pressure vessel head having circular sections in horizontal planes and elliptic sections in vertical planes. The shell is formed by cutting the head along a vertical axis to form two halves, rotating the halves outwardly with respect to each other and repositioning them so their original base edges are juxtaposed and the two halves form a continuous enclosure having an open base and which has elliptic sections in both vertical and horizontal planes, and welding the two halves along said base edges to form a unitary valve shell.

REFERENCES:
patent: 325449 (1885-09-01), Schueler
patent: 814568 (1900-03-01), Stagg
patent: 1898883 (1933-02-01), Matheson
patent: 2362544 (1944-11-01), Eckberg
patent: 2771665 (1956-11-01), Beatty
patent: 3979809 (1976-09-01), Schneider

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