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The sheer volume of piping systems, both insulated and non-insulated, is daunting. Companies, in order to deal with limited inspection resources, have resorted to risk-based strategies in order to prioritize inspection of such systems. By the time surfaces and systems are inspected, they often exhibit wall loss, or pitting corrosion on surfaces. Piping is only as strong as the wall thickness of the original design. When corrosion reduces wall thickness to a minimum required thickness for the given pressure, actions must be taken.
This presentation will discuss the ASME B31.2 piping requirement for tmin considerations, and the ASME PCC-2 Standard for repairs, which includes a composite coating system as an allowable method for strengthening piping.
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