Textile tubing

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

Patent

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Details

F16L 55/165 (2006.01) F16L 11/02 (2006.01) F16L 11/04 (2006.01)

Patent

CA 2387104

The invention relates to a textile tubing (2) consisting of a material (6) made of warp and weft threads manufactured from high tensile strength and high modular strength fibers (high performance fibers), whereby the warp threads are arranged in the longitudinal direction of the tubing and the weft threads are arranged in the circumferential direction of the tubing, in addition to an inner-and outer coating (4, 8) made of a thermoplastic synthetic material whereby the textile (6) is disposed between said coating and the weft thread width is at least 8,000 dtex and preferably more than 10,000 dtex. The weft density is at least 40 and preferably more than 50 threads/10cm and the warp thread width is at least 2,000 dtex and preferably more than 3,000 dtex. Said textile tubing is especially suitable for cleaning high pressure liquid lines. Said textile tubing does not have to be stuck to large surface areas of the inner wall of a pipe due to its high burst pressure of more than 90 bar. The nominal pressure of old pipes can be substantially increased by the cleaning procedure.

La présente invention concerne une gaine tissée (2) comprenant un tissage (6) composé de fils de chaîne et de trame, eux-mêmes constitués de fibres à haut module et résistance élevée (fibres haute performance), les fils de chaîne s'étendant dans la direction longitudinale de la gaine et les fils de trame s'étendant dans la direction circonférentielle de la gaine, ainsi que des revêtements interne et externe (4, 8) en matière synthétique thermoplastique entre lesquels se trouve le tissage (6). L'épaisseur des fils de trame vaut au moins 8.000 dtex et est de préférence supérieure à 10.000 dtex. La densité de trame vaut au moins 40 et de préférence plus de 50 et l'épaisseur des fils de chaîne vaut au moins 2.000 dtex et est de préférence supérieure à 3.000 dtex. Une gaine tissée de ce type convient particulièrement à la rénovation de conduites de fluide haute pression. En raison de sa pression d'éclatement élevée dépassant 90 bar, la gaine tissée n'a pas besoin de collage superficiel contre la paroi interne de conduite. La pression nominale de l'ancienne conduite peut être significativement augmentée grâce à la rénovation.

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