Combination of ceramic and plastic withstands many depressurizations. Stack of washers surrounds leadthrough electrode. Under pressure washers expand to fill leadthrough hole in high-pressure vessel. Seal thus formed withstands 20 or more pressurization/depressurization cycles. Seal composed of neoprene, polytetrafluoroethylene, nylon and high-purity, high-density commercial alumina ceramic.
Feedthrough Seal For High-Pressure Vessel
NASA Tech Briefs ; 8 , 2
1984-11-01
Miscellaneous
No indication
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