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MOE.
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lcarney
Can anyone explain the engineering principles on why the gas main from the street is always smaller than the gas main going into the house?
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By using high pressures in the distribution lines, smaller diameter piping can be used at a tremedous savings to the gas supplier. Service lines connected to the distribution line are provided with pressure reducing regulators to drop the high pressure gas down to around 1/2 psi before it enters the users piping system inside the home.
MOE
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