Tapping sleeve for large size pipe

Details Tapping sleeve for large size pipe Tapping sleeve for large size pipe

F - Mech Eng,Light,Heat,Weapons

16

L

189/13

F16L 41/00 (2006.01) F16L 41/06 (2006.01)

Patent

CA 1090271

TAPPING SLEEVE FOR LARGE SIZE PIPE Abstract of the Disclosure A tapping sleeve for mounting on an in-service pipe under pressure in which a pipe opening is to be formed. The sleeve comprises upper and lower sleeve halves, one of which supports an endless gasket adapted to provide a pressure seal about the branch opening when formed in the pipe. Contained in the lower sleeve half are a plurality of arcuately displaced longitudi- nally extending metal pads mounted for articulation and adapted to support the pipe against internal pressure forces. The pipe engaging surfaces of the pads are inwardly curved approxi- mating the pipe radius and are sufficiently deformable to enable surface conformance with the circumferential curvature of pipe wall in distributing the unit force loading therefor.

281954

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