Eliminate flanged connections by fusion welding liners in plastic-lined pipe: Qualification and experience
- Dow Chemical Co., Bay City, MI (United States). Plastic-Lined Piping Products
The chemical process industries have relied on plastic-lined piping (PLP) to solve complex corrosion problems for over forty years. The fugitive emissions regulations of the 1990 Clean Air Act Amendments (CAAA) have created concerns about the large number of flanged connections traditionally associated with PLP. New flange or joint reduction technologies (JRT) have been introduced to minimize the number of flanged connections in a PLP system. Flanges are eliminated by using longer pipe lengths, proprietary pipe bending techniques, and flangeless connections. The discussion will focus primarily on the flangeless connection, which involves butt-welding the inner plastic liners of the pipe sections to be joined, and connecting the outer steel shells with a mechanical coupling. All aspects of JRT will be discussed including: the testing involved in the qualification and verification of the flangeless connection, field installation capabilities, and customer case studies.
- OSTI ID:
- 382587
- Report Number(s):
- CONF-960389-; TRN: IM9645%%138
- Resource Relation:
- Conference: National Association of Corrosion Engineers (NACE) annual corrosion conference and exposition: water and waste water industries, Denver, CO (United States), 24-29 Mar 1996; Other Information: PBD: 1996; Related Information: Is Part Of Corrosion/96 conference papers; PB: [6615] p.
- Country of Publication:
- United States
- Language:
- English
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