ジョイントシートガスケットおよびバネ入りメタルCリング (トライパック^®) の室温における気体と液体のシール特性

抄録

This paper deals with the sealability of gaskets at room temperature for liquid and gas fluid. A method for measuring liquid leakage is proposed and the liquid leakage is measured. In addition, the liquid leakage is calculated by converting gas leakage obtained from the results of room temperature tightness test (ROTT).
The experimental results using metal C-ring nearly equals the calculated results. So we confimed that a converting method for liquid leakage is proper.
On the other hand, the experimental results using compressed fibers sheet gaskets were ten times smaller than the calculated results. Therefore ROTT can't be applied to design of bolted flanged joints when liquid fluid is used. Accordingly, it is concluded that ROTT for liquid fluid must be measured.