Integrity Management on TAPS
Valves

The Trans Alaska Pipeline System includes a number of valves that can isolate sections of the pipeline in the event of a leak. The 800 mile-long pipeline has 178 valves that control oil flow through the 48-inch mainline pipe. Most of these valves are environmental safeguards that ensure safe operation and limit the potential size of spills, especially at stream crossings and other environmentally sensitive areas. Alyeska has developed a valve maintenance program which includes testing and evaluating valves and making any necessary repairs or replacements.