Corrosion Under Insulation (CUI) in piping systems consumes a significant percent of the maintenance budget in the petrochemical industry. A large portion of this money is spent on expense items such as external piping inspection, insulation removal and re-installation, painting and pipe replacements. CUI Prevention Strategies provide long term and reliable prevention of CUI that move towards "inspection-free; maintenance-free" piping systems and significant maintenance cost reductions. 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 potential, initial installed cost and Life cycle cost.

Subject
Nondestructive testing, Costs, Corrosion prevention, Coating inspection, Piping, Insulation, Piping systems, Leaks, Organic coatings, Corrosion under insulation, Corrosion protection, Stainless steel, Maintenance
Keywords:
corrosion under insulation, piping, thermal spray aluminum
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2003
Association for Materials Protection and Performance (AMPP)
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