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AWWA C217-09
AWWA C217-09 Petrolatum and Petroleum Wax Tape Coatings for the Exterior of Connections and Fittings for Steel Water Pipelines
Ленточные покрытия из жидкого парафина и нефтяного воска для наружной части соединений и фитингов стальных водопроводов
19 стр.
Заменен
Печатная копия
225.60 $ (включая НДС 20%)
Разработчик:
Зарубежные/AWWA
Описание
his standard establishes minimum requirements for cold-applied petrolatum tape and petroleum wax tape coatings used on the exterior of steel water pipelines. The standard covers exterior coatings that consist of cold-applied petrolatum or petroleum wax primer, petrolatum or petroleum wax saturated tape coatings and their applications to special sections, connections, and fittings to be used with buried or submerged steel water pipelines. The primers and tapes are not intended for use with steel joints or sections of steel pipe where coatings of cement mortar or concrete are applied directly onto the bare steel pipe. These coatings may be field- or shop-applied according to the provisions of this standard. This standard does not cover the additional materials and procedures that may be required for difficult conditions, such as those encountered in building some submarine lines, casing pipe, river crossings, and lines that are in rocky areas or in severe soil stress.