NASA NTRS · 19680000053
Remotely installed pipe plug provides effective seal in hazardous environment
Abstract
Pipe plug for remote installation in an open-ended pipe used in a hazardous environment provides a gastight seal by expanding a rubber seal against the inside surface of the pipe opening, with mechanical clamps contacting the pipe flange for positive retention of the plug.
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Clifton, R. P.. 1968-03-01. Remotely installed pipe plug provides effective seal in hazardous environment. https://ntrs.nasa.gov/citations/19680000053
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