March 2014

Special Report: Corrosion Control

Reduce moisture intrusion in pipes, tanks and other equipment

Once water enters the system, even at high temperatures, the insulation system can retain large quantities of water. That can then lead to accelerated heat gain or loss.

Oslica, S., Pittsburgh Corning Corp.

Studies have shown that up to 98% of insulation system problems are caused by moisture, which typically enters the system through the jacketing and can then be retained in the insulation system. Once water enters the system, even at high temperatures, the insulation system can retain large quantities of water, leading to accelerated heat gain or loss. This causes increased energy consumption, boiloff of low-temperature liquids and solidification in high-temperature systems. Water can also lead to physical deterioration and dimensional changes, which compromises the system integrity. One of the most critical problems caused by moisture is metallic corrosion under insulation (CUI), a signifi

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