What is an immediate repair condition?
An immediate repair condition is a detected anomaly involving: Metal loss greater than 80% of nominal wall regardless of dimensions. Predicted burst pressure less than the maximum operating pressure at the location of the anomaly. (Where burst pressure has been calculated from the remaining strength of the pipe using a suitable metal loss strength calculation, e.g., ASME/ANSI B31G). Dents on the top of the pipeline (above 4 and 8 o’clock position) with any indicated metal loss, cracking, or a stress riser. Dents on top of the pipeline with a depth greater than 6 percent of nominal pipe diameter. Significant anomaly that in the judgment of the person evaluating the assessment results requires immediate action. Repairs must be made as soon as practicable. An operator must reduce pressure (to a level calculated using the formula in section 451.7 of ASME/ANSI B31.4 as applicable (see FAQ 7.15)) as soon as safety allows and operate at or below that pressure until a repair can be made.
An immediate repair condition is a detected anomaly involving: Metal loss greater than 80% of nominal wall regardless of dimensions. Predicted burst pressure less than the maximum operating pressure at the location of the anomaly. (Where burst pressure has been calculated from the remaining strength of the pipe using a suitable metal loss strength calculation, e.g., ASME/ANSI B31G). Dents on the top of the pipeline (above 4 and 8 o’clock position) with any indicated metal loss, cracking, or a stress riser. Dents on top of the pipeline with a depth greater than 6 percent of nominal pipe diameter. Significant anomaly that in the judgment of the person evaluating the assessment results requires immediate action. Repairs must be made as soon as practicable. An operator must reduce pressure (to a level calculated using the formula in section 451.6.2.2 (b) of ASME/ANSI B31.4 as applicable (see FAQ 7.15)) as soon as safety allows and operate at or below that pressure until a repair can be mad
