High integrity flange connection arrangement

Details High integrity flange connection arrangement High integrity flange connection arrangement

1982-05-11

1985-08-27

Callaghan, Thomas F.

Pipe joints or couplings

With casing, lining or protector

Lined

285340, 285363, 285368, F16L 914

Patent

active

045374252

ABSTRACT:
Connection between flange faces is effected with a rigid metal load bearing ring interposed therebetween for assuming the bolt torquing load and, when desired, for providing a fluid seal. Within said load bearing ring are disposed at least one coned ring spring and a force distributing ring for developing a predetermined sealing force against a flare of non-metallic material, usually a plastic. The flare may be at the end of a pipe or fitting liner or associated with an auxiliary or adapter seal. The spring provides automatic compensation for any cold or hot flow of the material within the flare so as to maintain a fluid seal between said flare and a mating surface.

REFERENCES:
patent: 1834581 (1931-12-01), Ferrell et al.
patent: 2985466 (1961-05-01), Solomon et al.
patent: 2998984 (1961-09-01), Gressel
patent: 3278202 (1966-10-01), Smith
patent: 3650550 (1972-03-01), West
patent: 3834744 (1974-09-01), Masatchi
patent: 4127287 (1978-11-01), Davies
patent: 4155571 (1979-05-01), Gastineau et al.
patent: 4288105 (1981-09-01), Press

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