Sealing assembly

Details Sealing assembly Sealing assembly

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 39/02 (2006.01)

Patent

CA 2419916

A sealing assembly (FIG. 2) for attaching pliable tubes (30) to rigid connecting members (12), for high pressure, low temperature service, which seals by compressing a sealing wafer (18) around the pliable tubes (30). The pliable tubes (30) pass through holes in the sealing wafer (18). As the wafer seal (18) is axially compressed, the wafer seal (18) is restrained against radial expansion, thereby exerting an inward radial pressure on the holes through the wafer seal (18) to cause an hermetic seal between the wafer seal (18) and the pliable tubes (30). A swage bushing (16) can be used, with swage tubes (16) that are swaged onto the pliable tubes (30) by a swage clamp (16), for the purpose of axially restraining the pliable tubes (30).

La présente invention concerne un ensemble d'étanchéification qui permet d'attacher des tubes pliables (30) à des élément de raccordement rigides (12) afin d'assurer un fonctionnement à haute pression et basse température, ensemble dont l'étanchéification s'effectue par compression d'une rondelle d'étanchéité (18) autour des tubes pliables (30). Les tubes pliables (30) passent à travers des trous formés dans la rondelle d'étanchéité (18). La compression axiale qui s'exerce sur la rondelle d'étanchéité (18) empêche cette dernière de s'étendre radialement et lui fait exercer une pression radiale vers l'intérieur sur les trous qui la traversent de façon qu'un joint hermétique se forme entre la rondelle d'étanchéité (18) et les tubes pliables (30). On peut utiliser une garniture d'étanchéité emboutie (16) comprenant des tubes emboutis (16) qui sont emboutis sur les tubes pliables (30) par une bride de serrage emboutie (16) afin de retenir axialement les tubes pliables (30).

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