Corrosion under insulation
This is an insidious problem is often noticed only when extensive damage has already happened. Corrosion under insulation accounts for 10% of total maintenance budgets and is the reason for more unplanned downtime as compared to all other causes.
Corrosion occurs due to trapped moisture
Corrosion is formed when water is trapped between the surface of the metal pipe or duct and the insulation material. Termed corrosion under insulation (CUI), this insidious problem is often noticed only when extensive damage has already happened. CUI usually occurs on pipes with a line temperature between 0 °C and 175 °C and is particularly critical above 50 °C. The risk increases on equipment which is operated discontinuously or at dual temperatures. If the temperature fluctuates, condensation can form in the insulation material and water can reach the surface of the pipes.
Damp insulation promotes corrosion
When moisture penetrates the insulation material through a damaged covering or in the form of water vapour transmission. the insulation material gets wet. This affects the insulation properties and results in energy losses. It could also lead to corrosion on the pipe surface.
Control condensation to avoid corrosion under insulation
Armacell provides a comprehensive product portfolio to ensure you achieve a high-performing system solution for reliable condensation control.
ArmaFlex - The preferred industry standard
With an innate water barrier built up cell by cell within lightweight and flexible ArmaFlex, any surface nick or tear of the material is limited only to the damaged area. ArmaFlex is customised to meet local requirements and often combined with other products into hybrid solutions.
ArmaGel - Next generation insulation
ArmaGel is a silica aerogel insulation blanket compliant with ASTM C1728. Available in 5mm, 10mm, 15mm and 20mm, Armacell's range of ArmaGel products offers customers greater choice for industrial applications with operating temperatures between -196 °C and +650 °C.
ArmaFix – prevents thermal bridging
ArmaFix prevents thermal bridging and condensation, while offering optimum reliability as well as being quick and easy to install. Used together with ArmaFlex, the system also acoustically decouples pipes and ducts from the building structure and reduces transmission of structure-borne noise in the building.
