Electrofusion fitting

Details Electrofusion fitting Electrofusion fitting

B - Operations, Transporting

29

C

B29C 65/34 (2006.01) B29C 65/00 (2006.01) F16L 47/02 (2006.01) F16L 47/03 (2006.01) B29C 33/00 (2006.01) B29C 61/02 (2006.01)

Patent

CA 2255917

An electrofusion fitting (2) for a plastics pipe (12), which comprises a hollow, tubular enclosure comprising a body to which an end of the plastics pipe can be connected, the body comprising at least one circumferential inner wall (18) and at least one circumferential outer wall (20) concentric therewith, the inner and outer walls forming an annular space for receiving the end of the plastics pipe (12), and comprising thermoplastic material at least in their regions adjacent the annular space, at least one electrical heating element (26, 28) for heating the thermoplastic material of the inner and outer walls being located adjacent to, or embedded in, each of said at least one inner wall and said at least one outer wall in their regions adjacent the annular space.

On décrit un raccord (2) d'électrofusion destiné à un tuyau (12) en plastique qui comprend une enveloppe creuse, tubulaire formée d'un corps à une extrémité duquel on peut connecter le tuyau en plastique, le corps comprenant au moins une paroi interne (18) circonférentielle et au moins une paroi externe (20) circonférentielle concentrique à la paroi interne (18), les parois interne et externe formant un espace annulaire qui permet de recevoir l'extrémité du tuyau (12) en plastique, mêmes parois (20, 18) comprenant comportant un matériau thermoplastique au moins dans les zones adjacentes à l'espace annulaire, au moins un élément électrique (26, 28) chauffant qui sert à chauffer le matériau thermoplastique des parois interne et externe qui se trouve adjacent à chacune des parois interne(s) et externe(s) ou noyé dans ces dernières dans des zone adjacentes à l'espace annulaire.

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