Threaded coupling with water exclusion seal system

Details Threaded coupling with water exclusion seal system Threaded coupling with water exclusion seal system

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 15/04 (2006.01) E21B 17/042 (2006.01)

Patent

CA 2445040

A threaded coupling (13) for joining together tubular sections (11, 12) is disclosed. The coupling (13) includes a water exclusion seal (36, 37) which is a pressure energized elastomeric seal positioned in a groove (34, 35) near each end (24, 25) of the coupling to form a radial seal between the unthreaded area (40, 41) at each end of the coupling and the unthreaded cylindrical area (40, 41) adjacent each end of the tubular section. A thread compound relief groove (32, 33) adjacent each seal groove has sufficient volume for thread compound that is squeezed from the threads during or after make-up.

L'invention porte sur un manchon taraudé (13) servant à relier des sections tubulaires (11, 12). Ce manchon (13) comprend un joint d'étanchéité par épanchement (36, 37) qui consiste en un joint d'étanchéité élastomère activé par pression installé dans une rainure (34, 35) près de chaque extrémité (24, 25) du manchon de manière à former un joint d'étanchéité radial entre la zone non taraudée (40, 41) à chaque extrémité du manchon et le zone cylindrique non taraudée (40, 41) située contre chaque extrémité de la section tubulaire. Une rainure de soulagement pour composé de taraudage (32, 33) près de chaque rainure de joint d'étanchéité (34. 35) possède suffisamment de volume pour le composé de taraudage qui est comprimé entre les fils au cours du vissage ou après.

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