Pipes and tubular conduits – With closures and plugs – Inflation stem type
Patent
1991-10-04
1995-10-10
Bryant, III, James E.
Pipes and tubular conduits
With closures and plugs
Inflation stem type
376203, 165 71, F16L 5512
Patent
active
054562902
ABSTRACT:
Tube plug and method for plugging a heat exchanger tube having an inner wall, which tube plug has a reduced susceptibility to stress corrosion cracking. The tube plug includes a shell having a closed end, an open end and an outer wall, the shell defining a chamber therein in communication with the open end of the shell. Disposed in the chamber is an expander member for expanding the outer wall of the shell into sealing engagement with the inner wall of the tube. A sealing member engages the expander member and is disposed across the open end of the shell for sealing the chamber defined by the shell so that fluid can not enter the chamber to corrosively attack the shell.
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Everett James W.
Haberman Eric R.
Keating Robert F.
Snyder David A.
Bryant III James E.
Stevens Walter S.
Westinghouse Electric Corporation
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