Platte inspection program supports alternative to hydrostatic testing

On a Missouri River levy, near St. Joseph, Mo., workers replace with new pipe a segment of that which had contained a wall anomaly. Photograph from Platte Pipe Line Co.Click here to enlarge imagePlatte Pipe Line's use of a new inspection tool to identify seam-weld defects revealed that the transverse field inspection (TFL) tool had less impact on pipeline operations and provided greater assurance than hydrostatic testing for the long-term operational reliability of the pipeline system. Use of the tool was prompted by an operational failure on the Platte system in July 1997. This failure was attributable to operational pressure-cycle fatigue crack growth of a hook-crack in the longit...

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