TAPS replaces, repairs valves in 3-year inspection program

Stopple plugs isolate Check Valve 122, north of Valdez, while the bonnet of the valve is removed and the valve accessed for repair. (Photograph by Mike Dinneen and provided by Alyeska Pipeline Service Co., Anchorage) A main line valve (RGV 80) is lifted from its site at MP 519 near Delta Junction, south of the midway point on the Trans-Alaska Pipeline, to be analyzed for sealing problems. Another valve from the Alyeska inventory replaced it in a 29-hr operation that shutdown the pipeline at the end of September. (Photograph by David Predeger and provided by Alyeska Pipeline Service Co., Anchorage) [41,153 bytes] The longest planned shutdown in the history of th...

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