ERW LINE PIPE -- CONCLUSION PRESSURE MANAGEMENT KEY TO PROBLEMATIC ERW PIPE

John F. Kiefner Kiefner & Associates Inc. Worthington, Ohio Abandoning or replacing electric-resistance welded (ERW) line pipe in service is impractical and undesirable despite the abundant evidence that large quantities, especially if produced before 1970, are inferior. Part 1 (OGJ, Aug. 10, p. 45) of this two-part series reviewed the ERW manufacturing process and many of the service problems encountered where this pipe has been used.

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