Four potential pitfalls to consider when insulating industrial pipes and vessels
Understanding the nature of the materials involved in industrial processes and establishing a moisture management strategy are necessary to protect against corrosion.
Industrial environments present extreme conditions for pipes and vessels that transport, cycle, and store process materials. A broad range of temperatures, volatile materials, and the intermittent cycles that occur during different phases of production all place a burden on process pipes and storage vessels. While insulation is installed to support the thermal performance of processes occurring in these pipes and vessels, careful consideration must always be given to the risk posed by corrosion under insulation (CUI).
Corrosion is defined as the deterioration of a material that occurs from a chemical or electrochemical reaction within its environment. As metal degrades, damage can compromise piping, equipment, and structural steel. When exposed, the extent of corrosion is clearly visible. But because insulation typically covers and thus hides the substrate, corrosive damage may not be noticed until it is extensive and requires a complete replacement.