Method of repairing or replacing piping and inflatable plug

Details Method of repairing or replacing piping and inflatable plug Method of repairing or replacing piping and inflatable plug

F - Mech Eng,Light,Heat,Weapons

16

L

26/155, 166/65

F16L 55/124 (2006.01) F16L 55/134 (2006.01) F16L 55/16 (2006.01)

Patent

CA 1294543

ABSTRACT OF THE DISCLOSURE A method of repairing piping by inserting an inflatable plug through a pressure housing and valve, inflating the plug and then inserting a screwed sealed plug into a special flange which is attached to an existing pipe flange. The plug has a sealing ring with a tread and segmented steel rings. After the plug is inserted the piping may be repaired or replaced and the inflatable plug deflated and removed with the screwed plug by a system of rods extending through the valve and pressure housing.

563047

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