Cold-Applied Tape Coatings for the Exterior of Special Sections, Connections, and Fittings for Steel Water Pipelines
|Publication Date:||1 October 2000|
This standard describes protective exterior coatings that consist of cold-applied liquid adhesives and prefabricated tapes and their applications to special sections, connections, and fittings to be used with underground and underwater steel water pipelines protected with organic coatings, such as those described in ANSI(Footnote *)/AWWA C203, ANSI/AWWA C210, ANSI/AWWA C213, ANSI/AWWA C214, ANSI/AWWA C215, and ANSI/AWWA C216. See Sec. 2, References, for the titles of these standards. These liquid adhesives and tapes are not intended for use with exposed steel joints or sections of steel pipe where coatings of cement mortar or concrete have been applied directly onto the bare steel pipe. Tape coatings conforming to this standard may be field or shop applied.
Maximum temperatures. All AWWA steel pipe coating standards are written for and based on the service temperature of potable water. Cold-applied tape coatings have performed at higher than normal service temperatures of potable water systems. The manufacturer should be consulted for recommendations suitable to the purchaser's needs.
Conditions not included in this standard. This standard does not include the additional materials and procedures that may be required for difficult conditions, such as those encountered in construction of some submarine pipelines, casing pipe, river crossings, and pipelines that are in exceptionally rocky areas. Also, it is not intended to describe conditions of extended exposure aboveground after application. When extended periods of aboveground exposure are contemplated, the tape manufacturer should be consulted for specific recommendations.
Footnote * - American National Standards Institute, 11 W. 42nd St., New York, NY 10036.