Welded joint for lined pipe and components thereof

Details Welded joint for lined pipe and components thereof Welded joint for lined pipe and components thereof

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 13/02 (2006.01) F16L 9/14 (2006.01)

Patent

CA 2701833

A welded joint of a lined pipeline has a main pipe and an extension piece having a generally tubular shape, an inner wall and an annular weld connecting the extension piece to the main pipe. A liner extends through the main pipe and partially into the extension piece. A compression ring includes a flange and a compression portion. The compression portion engages the liner internally and compresses the liner radially outwardly against the extension piece so that the liner is sealed with the compression ring.

L'invention porte sur un assemblage soudé d'une conduite doublée, lequel a une conduite principale et une pièce d'extension ayant une forme généralement tubulaire, une paroi interne et une soudure annulaire reliant la pièce d'extension à la conduite principale. Une gaine s'étend à travers la conduite principale et partiellement dans la pièce d'extension. Une bague de compression comprend une bride et une partie de compression. La partie de compression engage la gaine de manière interne et comprime la gaine radialement vers l'extérieur contre la pièce d'extension de telle sorte que la gaine est scellée avec la bague de compression.

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