F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 21/03 (2006.01) F16L 13/02 (2006.01) F16L 58/02 (2006.01)
Patent
CA 2541410
There is disclosed a pipe joint, and a method of forming a pipe joint, between two metallic pipes which have been internally and/or externally coated with a material to prevent corrosion. The joint includes a spigot and a socket, the socket having, or being formed with, an internal circumferential groove (6) that provides a seating for an elastomeric sealing ring (8), and forwardly of which groove an extension or lip (13) is provided which provides a welding location (14) remote from the sealing ring. The coating on the end of the socket if necessary is removed to facilitate welding, and the spigot has a heat sink member (9) to enable the lip of the socket to be welded to the metal of the spigot.
L'invention concerne un raccord de tuyaux et son procédé de formation entre deux tuyaux métalliques revêtus de manière interne et/ou externe d'un matériau anticorrosion. Ledit raccord comprend un embout mâle et un embout femelle, ledit embout femelle comprenant ou étant constitué d'une rainure périphérique interne (6) qui forme une assise destinée à une bague d'étanchéité élastomère (8), et une extension ou lèvre (13) disposée sous ladite rainure fournissant un emplacement de soudage (14) distant de la bague d'étanchéité. Le revêtement recouvrant l'extrémité de l'embout femelle est, le cas échéant, retiré afin de faciliter le soudage, et l'embout mâle comprend un élément de puits de chaleur (9) permettant de souder la lèvre de l'embout femelle sur le métal de l'embout mâle.
Kirby Eades Gale Baker
Tyco Water Pty Limited
LandOfFree
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