دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a gap or flaw in pipe coating. Coating flaws, which must be repaired to prevent corrosion problems, are detected through mechanical or visual inspections of the line. Also called holiday.

n: a special material that coats pipe for pipelines and prevents water from coming into contact with the steel of the pipe. The most widely used types of pipe coatings are bituminous enamels, epoxy resins, and tapes.

n pI: any of a variety of materials often used in pipe coatings, the molecular structure of which allows them to soften repeatedly when heated and harden when cooled.