Abstract
The authors have been evaluating the effects of the material properties of spiral wound gaskets(SWG) and the sealing performance of the pipe flange connections at thermal changes with numerical and experimental analysis. In this experiment we used 3" pipe flange connections and tightened by torque wrench. And then, we heated and measured leak volume. On the other hand we evaluated with the experimental leakage test and 3-D FE analysis in this study. Considering the circumstances mentioned above, we inspected stress analysis under scatter on bolt preloads and thermal changes.
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