December 2011, Vol. 238 No. 12

Features

Take A BIG First Gas Pressure Cut To Protect Delivery System

Despite the higher gas pipeline pressures (up to 1,000 psi) and varying inlet pressures on peak days in recent years, Wisconsin Public Service Corporation believes the most effective pressure-reduction practice is to take a first cut from the supply pipeline in one big step while sizing for minimum contract pressure. This operating philosophy makes sense because single-step pressure reduction is less complicated and allows us to use smaller valves and get more capacity than with multiple pressure cuts requiring larger valves. In some cases, building another regulation run/cut may be unnecessary. The company expects lower installation costs and lower overall cost of ownership ove

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