Composite coiled tubing end connector

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

Patent

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Details

F16L 47/04 (2006.01)

Patent

CA 2385237

An improved end connector (10) includes a service end (18), a slip nut (22) disposed about the outer surface of a composite pipe (12) and engageable with the service end, and a slip (20) positioned about the outer surface of the pipe and engaged by the service end and the slip nut. Progressive engagement of the service end relative to the slip nut radially compresses the slip into gripping contact with the pipe. The slip preferably includes pipe-engaging teeth (50) that are sized and shaped to penetrate into an outer layer of the composite pipe. The service end includes an integral seal carrier (32) having a seal (36) thereon, such as an elastomeric O-ring, to seal between the pipe and the seal carrier. The integral seal carrier is positioned in the pipe bore at a location radially opposite the slip to resist deformation of the pipe when the slip is compressed into gripping contact with the pipe.

Un connecteur d'extrémités amélioré (10) comprend une extrémité de service (18), un écrou coulissant (22) placé autour de la surface extérieure d'un tuyau composite (12) et pouvant s'associer à l'extrémité de service et un manchon (20) coulissant placé autour de la surface extérieure du tuyau et bloqué par l'extrémité de service et l'écrou coulissant. La mise en contact progressive de l'extrémité de service par rapport à l'écrou coulissant comprime radialement le manchon coulissant et le bloque sur le tuyau. Le manchon coulissant comporte de préférence des dents (50) prévues pour bloquer le tuyau qui sont dimensionnées et configurées pour pénétrer dans une couche extérieure du tuyau composite. L'extrémité de service comprend un porte-joint intégré (32) supportant un joint (36) tel qu'un joint torique élastomère prévu pour assurer l'étanchéité entre le tuyau et le porte-joint. Le porte-joint intégré est positionné dans l'alésage du tuyau à un endroit radialement opposé au manchon coulissant pour empêcher le tuyau de se déformer lorsque le manchon coulissant est comprimé et serre fortement le tuyau.

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