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Cold‐Water Corrosion of Copper Tubing: Task Group Report
This task group report concludes that copper is a very desirable material for use as a conveyor of cold water. Copper will continue to be used extensively for cold‐water services; however, it must be recognized that there will be problems associated with the use of copper when the water it carries is soft and of low pH, when stray currents are present, when flow rates are high, or when the tubing is of poor quality. Most important of the problems associated with the use of copper are: staining; metallic taste, especially in the water first drawn in the morning, and the occasional nausea that follows its use; the pitting of galvanized hot water tanks; and, perforation of the tubing. Although the latter problem apparently occurs to a limited extent, it is quite annoying to consumers and to water utility operators who must deal with it. The report from Water Service Laboratories indicates that the useful life of most of the specimens examined is more than 200 years. Because of this estimate, it is reasonable to assume that if Type L tubing had been used in these installations it, too, would have given satisfactory service. It would then seem that serious consideration ought to be given to the use of Type L tubing, except in those areas where copper tubing is known to fail in a comparatively short time. This consideration is based on chemical results only and not on properties pertaining to mechanical handling and other factors.
Cold‐Water Corrosion of Copper Tubing: Task Group Report
This task group report concludes that copper is a very desirable material for use as a conveyor of cold water. Copper will continue to be used extensively for cold‐water services; however, it must be recognized that there will be problems associated with the use of copper when the water it carries is soft and of low pH, when stray currents are present, when flow rates are high, or when the tubing is of poor quality. Most important of the problems associated with the use of copper are: staining; metallic taste, especially in the water first drawn in the morning, and the occasional nausea that follows its use; the pitting of galvanized hot water tanks; and, perforation of the tubing. Although the latter problem apparently occurs to a limited extent, it is quite annoying to consumers and to water utility operators who must deal with it. The report from Water Service Laboratories indicates that the useful life of most of the specimens examined is more than 200 years. Because of this estimate, it is reasonable to assume that if Type L tubing had been used in these installations it, too, would have given satisfactory service. It would then seem that serious consideration ought to be given to the use of Type L tubing, except in those areas where copper tubing is known to fail in a comparatively short time. This consideration is based on chemical results only and not on properties pertaining to mechanical handling and other factors.
Cold‐Water Corrosion of Copper Tubing: Task Group Report
Journal ‐ American Water Works Association ; 52 ; 1033-1040
1960-08-01
8 pages
Article (Journal)
Electronic Resource
English
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