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Applied Science and Convergence Technology 2002; 11(2): 81-86

Published online June 1, 2002

Copyright © The Korean Vacuum Society.

Sealing Test of the Helicoflex Gasket

In-Keun Yu,Sang-Ryul In

Abstract

With a specific model for the Helicoflex type metal gasket expected to be used in large ports of the KSTAR vacuum vessel, a sealing curve was obtained by measuring the flange tightening properties such as the correlations of the tightening torque(or linear load), displacement to the leak rate. From the experiment results it was found that the leak rate of the Helicoflex seal in the room temperature was bellow 2 × 10^(-11) mbarㆍL/s with a tightening torque of 2500 kgfㆍ㎝ using M18 bolts.

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