Tubing joints and methods for attachment of tubing to valves...

Details Tubing joints and methods for attachment of tubing to valves... Tubing joints and methods for attachment of tubing to valves...

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 13/14 (2006.01)

Patent

CA 2264091

A method and apparatus for attachment of tubing to gas valves and similar gas extrusions (104) and tubing joints (100, 100A, 100B) are provided. A gas extrusion body portion (106) is provided with a bore (108) for receiving a small diameter, thin wall tube (102). A groove (110, 110A, 110B, 140, 150, 152, 154, 156) is formed around the exterior of the body portion. The tube (102) having an outside diameter less than an inside diameter of the bore (108) and a flanged eyelet (160), is inserted in the bore. Force is applied to the body portion (106) for deforming an area of the body portion near the groove together with the tube (102) to achieve a mechanical bond, providing a gas tight seal.

Cette invention concerne un procédé et un appareil permettant de fixer des tuyaux à des robinets de gaz et des extrudats (104) similaires pour le gaz ainsi que des raccords (100, 100A, 100B) pour tuyaux. Une partie corps (106) d'extrudat pour le gaz est formée avec un alésage (108) prévu pour recevoir un tuyau (102) à petit diamètre et à paroi mince. Une rainure (110, 110A, 110B, 140, 150, 152, 154, 156) est formée autour de la surface extérieure de la partie corps. Le tuyau (102) présente un diamètre extérieur qui est inférieur au diamètre intérieur de l'alésage (108) et un oeillet (160) à bride est introduit dans l'alésage. On applique une force sur la partie corps (106) pour déformer une région de la partie corps située à proximité de la rainure ainsi que le tuyau (102) et obtenir ainsi une liaison mécanique formant un joint étanche au gaz.

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