NASA NTRS · 19900000111
Static Pressure-Assisted Seal For Helium
Abstract
Two-piece, all-metal, pressure-assisted static flange seal holds in pressurized helium satisfactorily at temperature of negative 80 degree F (negative 62 degree C). Installed between two flanges, then bolted together. New version includes one pressure-assisted metal sealing element held in place by metal plate and flanges. Certified for use in flight on helium joints of Space Shuttle main engine. Likely terrestrial applications include laboratory and industrial gas-distribution systems.
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Stuck, Donald E., Okabayashi, Takateru. 1990-03-01. Static Pressure-Assisted Seal For Helium. https://ntrs.nasa.gov/citations/19900000111
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