April 2020, Vol. 247, No. 4

Tech Notes

Gas Pipe Upgrade Made Easy with Shur Stop

Spire Energy is a public utility serving more than 1.7 million customers in Alabama, Mississippi and Missouri, making it the fifth-largest publicly traded natural gas company in the United States.  A recent upgrade project in the St Louis, Missouri, metro area required connecting two different pressurized polyethylene (PE) mains. The utility did not want to perform this operation by squeezing the PE pipe, because that would put excessive strain on the pipe. However, Spire needed a 100% stop off to complete the work in a safe environment. “Because we had no isolation valves available in this area, we decided to go with Shur Stop, a Mueller brand,” s

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