Method of pressure fitting a tube in a tube sheet
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United States of America Patent
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-
Dec 20, 1983
Grant Date -
N/A
app pub date -
Feb 16, 1982
filing date -
Feb 17, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tube end received in a bore of a tube sheet is expanded by introducing a mandrel into the tube end and utilizing fluid pressure to bias a pair of sealing rings outwardly to engagement with a tube end, thereby sealing off the clearance between the mandrel and the tube end. In addition to utilizing the fluid pressure to provide the sealing action, the invention admits the fluid pressure into the clearance and thereby expands the tube end.
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