Threaded joint with energizable seal

F - Mech Eng,Light,Heat,Weapons – 16 – L

Patent

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Details

F16L 15/04 (2006.01)

Patent

CA 2685396

A threaded joint has a sealing ring (11) interposed between the pin (3) and a box (2), positioned in a portion of the surface of the pin after the end of the threaded section of the pin. The sealing ring has two protruding annular lips (15, 16) positioned at a skewed angle to the longitudinal axis, two or more annular ribs (18) on the external cylindrical surface, a reinforcement ring (14) embedded in the sealing ring (11), in tight sealing contact with an internal surface of an annular groove (10) of the box by means of the annular ribs (18). The internal surface (19) of the sealing ring (11) can be made without abrupt variations and can have a uniform diameter or have protruding annular ribs (13).

La présente invention concerne un assemblage fileté présentant une bague d'étanchéité (11) interposée entre la broche (3) et une boîte (2), positionnée dans une partie de la surface de la broche après l'extrémité de la section filetée de la broche. La bague d'étanchéité présente deux lèvres annulaires en saillie (15, 16) positionnées suivant un angle oblique par rapport à l'axe longitudinal, deux nervures annulaires (18) ou plus sur la surface cylindrique externe, une bague de renforcement (14) encastrée dans la bague d'étanchéité (11), en contact d'étanchéité étroit avec une surface interne d'une rainure annulaire (10) de la boîte au moyen des nervures annulaires (18). La surface interne (19) de la bague d'étanchéité (11) peut être réalisée sans variations abruptes et peut présenter un diamètre uniforme ou présenter des nervures annulaires en saillie (13).

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