Apparatus for pressure fitting a tube in a plate, e.g. a...

Details Apparatus for pressure fitting a tube in a plate, e.g. a... Apparatus for pressure fitting a tube in a plate, e.g. a...

B - Operations, Transporting

21

D

153/16

B21D 19/00 (2006.01) B21D 39/08 (2006.01) B21D 39/20 (2006.01)

Patent

CA 1174573

13197 ABSTRACT OF THE DISCLOSURE An apparatus for expanding tube ends in a tube sheet of a heat exchanger tube bundle comprises a mandrel which can be in- serted into the tube end and an expansion pressure generator connected to said mandrel. A source of filling liquid is also connected to the mandrel to the expansion pressure generator which has a port for the filling liquid selectively blocked by the plunger of the expansion pressure generator so that problems with check valves for the filling can be obviated.

396325

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