Flexible hydraulic expansion mandrel

Details Flexible hydraulic expansion mandrel Flexible hydraulic expansion mandrel

B - Operations, Transporting

21

D

B21D 41/02 (2006.01) B21D 9/00 (2006.01) B21D 39/20 (2006.01)

Patent

CA 2144599

A flexible mandrel for expanding a tube in a tubesheet comprises a length of flexible wire which is placed within a tube. A hydraulic seal is located at each end of the length of flexible wire for sealing a section of the tube and is connected to the flexible wire by a connector. A fluid inlet is provided at the rear end of the mandrel for providing fluid to the mandrel between the sealed section of the tube.

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