Threaded joint with resilient seal ring

Details Threaded joint with resilient seal ring Threaded joint with resilient seal ring

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 15/02 (2006.01) F16L 5/04 (2006.01)

Patent

CA 2685399

A threaded joint comprises a seal ring (6) interposed between the pin and the box, and located in a groove (18) between the end of a threaded section (5) and the nose (15) of the box (3). The seal ring (6) has a first base (8), a second base (9) axially opposite to the first base, at least two protruding annular ribs (11, 12) on the external surface, and an internal surface comprising, in an unloaded position, two frustoconical annular surfaces (19, 20) tapering towards the centre of the seal ring and joined by a fillet (10).

L'invention concerne un joint fileté comprenant une bague d'étanchéité (6) interposée entre le filetage mâle et le filetage femelle, et située dans une rainure (18) entre l'extrémité d'une section filetée (5) et le nez (15) du filetage femelle (3). La bague d'étanchéité (6) a une première base (8), une seconde base (9) axialement opposée à la première base, au moins deux nervures annulaires en saillie (11, 12) sur la surface externe, et une surface interne comprenant, dans une position non chargée, deux surfaces annulaires frustoconiques (19, 20) s'effilant en direction du centre de la bague d'étanchéité et réunies par un filet (10).

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