Method of sealing a discontinuity within a gas main

Details Method of sealing a discontinuity within a gas main Method of sealing a discontinuity within a gas main

F - Mech Eng,Light,Heat,Weapons

16

L

26/155, 117/55

F16L 55/162 (2006.01) F16L 55/164 (2006.01) F16L 55/18 (2006.01)

Patent

CA 1331540

ABSTRACT A method of sealing a joint in a gas main comprising boring a hole in the wall of the main at a point spaced from the joint, inserting into the main through the hole so formed a sealant spraying means, moving the spraying means to the site of the joint, pumping a settable anaerobic type sealant to the spraying means, causing the spraying means to spray the sealant onto the inner wall of the main to form a layer covering the joint, removing the spraying means through the hole and allowing the sealant to set.

615470

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