Purpose: Ensure welded line pipe joints meet the governing pipeline code and project specifications so the pipeline achieves required strength, leak tightness, and integrity over design life. I.1 ...
At-a-Glance: Structural integrity in pipeline welding is achieved by rigorous WPS/PQR control, heat-input and hydrogen management, precise fit-up, environmental controls, qualified welders, 100% ...
SAN FRANCISCOSAN FRANCISCO — An old memo just revealed by Pacific Gas & Electric Co. to California pipeline regulators indicates the company had noted weld defects on the same line that exploded in ...
A Pacific Gas and Electric Co. document that the company just disclosed to state regulators indicates the San Bruno pipeline that exploded in 2010 had a history of weld failure that by law should have ...
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