TUBE PLUGGING APPARATUS, ESPECIALLY FOR HEAT EXCHANGER TUBES
Tube-closing device with a tube plug having a plug casing with an enlargeable outer diameter for producing sealing surface pressure, and a plug core surrounded by the plug casing, the plug core and the plug casing being displaceable relative to one another, enlargement of the outer diameter of the p...
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Format: | Patent |
Sprache: | eng ; ger |
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