NASA NTRS · 19800000240
Flared tube attachment fitting
Abstract
Tubes can be flared first, then attached to valves and other flow line components, with new fitting that can be disassembled and reused. Installed fitting can be disassembled so parts can be inspected. It can be salvaged and reused without damaging flared tube; tube can be coated, tempered, or otherwise treated after it has been flared, rather than before, as was previously required. Fitting consists of threaded male portion with conical seating surface, hexagonal nut with hole larger than other diameter of flared end of tube, and split ferrule.
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Alkire, I. D., King, J. P., Jr.. 1980-09-01. Flared tube attachment fitting. https://ntrs.nasa.gov/citations/19800000240
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