Pipe joint

Details Pipe joint Pipe joint

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 15/00 (2006.01)

Patent

CA 2390136

A pipe joint comprising a first pipe (1) having an externally threaded end (2), a second pipe (10) having an externally threaded end (12), a first liner (5) extending into the first pipe (1) with a portion (6) protruding from the end of the first pipe (1), a second liner (14) extending into the second pipe (10), with a portion (15) protruding from the end of the second pipe (10), wherein, in use, the portion (6) of the first liner (5) overlaps the portion (15) of the second liner (14), a collar (20) having internal threads (21, 22, 23) which engage the threaded ends (2, 12) of the pipes (1), the first and second tube ends (2, 12), collar (20) and portions (6, 15) being dimensioned such that on making up the joint by threading the collar (20) to the first and second ends (2, 12) of the pipes (1, 10), the portions (6, 15) sealingly abut each other where they overlap.

L'invention concerne un raccord de tuyaux comprenant un premier tuyau (1) présentant une extrémité extérieurement filetée (2), un second tuyau (10) présentant une extrémité extérieure filetée (12), un premier chemisage (5) dans le premier tuyau (1) dont une partie (6) dépasse de l'extrémité du premier tuyau (1), un second chemisage (14) dans le second tuyau (10) dont une partie dépasse de l'extrémité du second tuyau (10). A l'utilisation, la partie (6) du premier chemisage (5) recouvre la partie (15) du second chemisage (14). Un collier (20) à filetages intérieurs (21, 22, 23) prend sur les extrémités filetées (2, 12) du tuyau (1). Les premières et secondes extrémités du tuyau, le collier (20) et les parties (6, 15) sont conçus de façon à bloquer le joint grâce au filetage du collier (20) aux première et seconde extrémités (2, 12) des tuyaux (1, 10). Les parties (6, 15) sont aboutée étanches au point de recouvrement.

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