Valve housing and method of making the same

Details Valve housing and method of making the same Valve housing and method of making the same

1975-06-25

1976-08-24

Lanham, C.W.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29463, 29445, 228104, 251367, B23P 1500, B23P 1300, F16K 2710

Patent

active

039758109

ABSTRACT:
A valve housing is composed of a pair of shell sections each of which has an open side surrounded by an edge face, and a semi-circular rib located within the open side and having a face slightly downwardly recessed from the associated edge face. The shell sections are placed together so that their edge faces abut, and these edge faces are welded to one another. The ribs are semi-circular in mutually opposite directions and thus form a circumferentially complete annular portion. Opposite this portion the housing is provided with an opening having a larger diameter than the portion, and after the shell sections have been welded together a material-removing tool is inserted through this opening and forms on the tubular portion a circumferentially complete annular welding face which is in part of stepped configuration. A seat-forming member which is annular and which is of similarly stepped configuration is then inserted through the opening and positioned on the annular welding face, and thereupon welded to the same by means of an electron beam which is admitted through the opening.

REFERENCES:
patent: 1586691 (1926-06-01), Murray, Jr.
patent: 2363943 (1944-11-01), Carlson
patent: 2869221 (1959-01-01), Siepmann
patent: 2989976 (1961-06-01), Kinderman et al.
patent: 3354793 (1967-11-01), Meier et al.
patent: 3756560 (1973-09-01), Siepmann

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