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Flow studies made of water transmission mains in Fort Worth in 1964 indicated that carrying capacities of some new mains had deteriorated due to a deposit of a soft rippled layer of alumina, Al2O3, and silica, SiO2. This article describes a plastic pig cleaning device used by Fort Worth shaped like a bullet‐nosed cylinder made of polyurethane sponge covered partially with spiral strips of a tough plastic that may be fitted with plastic bristles or abrasive coatings. The article discusses the cleaning procedure, along with the results and costs of the cleaning.
Flow studies made of water transmission mains in Fort Worth in 1964 indicated that carrying capacities of some new mains had deteriorated due to a deposit of a soft rippled layer of alumina, Al2O3, and silica, SiO2. This article describes a plastic pig cleaning device used by Fort Worth shaped like a bullet‐nosed cylinder made of polyurethane sponge covered partially with spiral strips of a tough plastic that may be fitted with plastic bristles or abrasive coatings. The article discusses the cleaning procedure, along with the results and costs of the cleaning.
Pigs in the Water Pipe
Hardy, W. Ralph (author)
Journal ‐ American Water Works Association ; 60 ; 909-914
1968-08-01
6 pages
Article (Journal)
Electronic Resource
English
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