B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
26/91
B23P 11/00 (2006.01) B21D 39/06 (2006.01) B21D 39/20 (2006.01) B23P 19/00 (2006.01) B23P 21/00 (2006.01) F28F 9/16 (2006.01)
Patent
CA 1079041
Abstract of the Disclosure An apparatus for the pressure-tight hydraulic securing of tubes in the bores of tube endplates, particularly in the case of heat exchangers. The apparatus comprises a cylindrical probe which in the securing process is inserted into a tube to be secured, leaving an expansion space which is sealed at the ends and into which a hydraulic pressure medium is introduced through a channel in the probe, while at each end of the expan- sion space a groove extends around the outer wall of the probe and contains a sealing ring of an elastic material of high strength, while the probe, axially outside the expansion space defined by the sealing rings, has cylindrical sections, charac- terized in that the probe channel is connected to the high pressure side of a pressure multiplier and a hydraulic pump is provided together with means for connecting the hydraulic pump to the low pressure side of the pressure multiplier.
272889
Krips Herbert
Podhorsky Miroslav
LandOfFree
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