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Pond investigated pressure vessel tank failures which are causing recurring maintenance of $250,000 per year. This challenging project had limitations of space, operational time pressures/vessel availability requirements, cost and replacement variables. This presentation will chronical problems and discuss best practices of specifications, material selection, surface preparation, and application inspection that would have prevented the aforementioned outcome. This paper discusses the fundamentals of composite coatings, industry accepted design standards for their use, and examples of typical uses for these materials that solve problems in varied industries.
This paper will explain how to find CUI (Corrosion under Insulation within a refinery through proper inspection and, damage mechanisms, avoiding premature structural failure due to corrosion.
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The designer of industrial equipment and piping has three weapons in the fight against corrosionunder insulation (CUI). The first and primary defense against CUI is a high quality, immersiongrade coating. The second is a properly designed and installed weather barrier jacketing. The thirdand, arguably, least understood element is the choice of insulation material. This paper will explorethe ways in which insulation materials influence CUI behavior, presenting results from bothlaboratory and field-testing on seven industrial insulation materials and one composite system.The materials tested were calcium silicate, expanded perlite, cellular glass, mineral wool (bothregular and water-repellent grade), and two types of flexible aerogel blanket material -PyrogelXT and Cryogel Z
Corrosion Under Insulation (CUI) in pipingc systems consumes a significant percent of the maintenance budget in the petrochemical industry. Prevention of CUI by the use of (1) thermal spray aluminum, (2) stainless steel pipe, (3) expanded metal cages for personnel protection instead of insulation and (4) aluminum foil wrapping are discussed in terms of long term protection, installed cost and Life cycle cost.