Method of pipe replacement

Details Method of pipe replacement Method of pipe replacement

F - Mech Eng,Light,Heat,Weapons

16

L

61/5.1

F16L 55/18 (2006.01) E21B 7/20 (2006.01) E21B 7/30 (2006.01) E21B 23/14 (2006.01) F16L 55/165 (2006.01)

Patent

CA 1326600

ABSTRACT OF THE DISCLOSURE A method of replacing an old pipe with a new pipe comprising the steps of attaching the new pipe to the rear of a bursting mole having a cylindrical body whose external diameter is larger than the diameter . of the old pipe, and pulling the bursting mole and the new pipe forward by means of a traction cable so that a head of the bursting mole intrudes into the old pipe and bursts it so as to form an enlarged space for the new pipe, the method further comprising a step of temporarily detaching a longitudinal portion of a pipe section in order to pass an air hose through the pipe section without disconnecting the hose from the bursting mole.

580575

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