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  1. johnpe

    Calculating Line/Pressure Loss Across Expansion Joints

    Iainuts friction factor formula is a bit tricky. I think foot and inch dimensions are mixed up. If cocnsistant units are used the term (12*e/ID) should be replaced by (e/ID) where e is the roughness hieght. This formula duplicates the Moody diagram beautifully. A bit of algebra converts the...
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