Pipe joints or couplings – With casing – lining or protector – Insulated
Patent
1993-02-12
1994-08-02
Reese, Randolph A.
Pipe joints or couplings
With casing, lining or protector
Insulated
285 50, 285 55, 285286, 285406, F16L 5500
Patent
active
053339134
ABSTRACT:
Galvanic isolation between two fluid-conducting members made of dissimilar materials is provided by a coupling pipe that separates the two members (e.g. a pipe and a valve). The coupling pipe includes a tubular section and two flange sections, which mate with the two fluid-conducting members. An insulating liner on the inside diameter of the tubular and flange sections of the coupling device extends the entire length of coupling pipe and is coextensive with flange insulators that separate the coupling pipe from the two fluid-conducting members. The substantial separation distance provided by the coupling pipe with continuous insulation prevents or significantly reduces electrochemical corrosion.
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Chun Heather
Newport News Shipbuilding and Dry Dock Company
Reese Randolph A.
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