STP1320

    Preventing Environmentally-Caused Corrosion of Insulated Copper Lines

    Published: Jan 1997


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    Abstract

    Copper tubing systems are commonly used in plumbing, heating, cooling and refrigeration systems. Insulation is frequently applied to prevent surface condensation and energy loss or gain of these systems. Environmental factors can be responsible for the corrosion of copper tubing systems causing normally-dependable systems to fail. Urine, construction debris, inappropriate leak testing agents, road salt chemicals, leaking fittings, and even common surfactants can be causes of corrosion. Trapped water can make these corrodants much worse. Identification and elimination of these corrosion sources can result in a long-lived and dependable insulated copper tubing system.

    Keywords:

    copper, corrosion, insulation materials, stress corrosion cracking, ant nest corrosion, phenolics, urine, fan coil units, refrigerants


    Author Information:

    Hough, PA
    Manager, Armstrong Insulation Products, (North America), Lancaster, PA

    Lenox, RS
    Senior Principal Scientist, Armstrong Insulation Products Research, Lancaster, PA


    Paper ID: STP12293S

    Committee/Subcommittee: C16.33

    DOI: 10.1520/STP12293S


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