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Calculation of resistance for positive displacement flowmeters

2009-03-16View Original

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:):):) I’m selecting a pump and performing calculations for pipeline resistance. I’m looking for the resistance coefficient of gear flow meters, or at least an approximate value for the pressure drop. I remember that in textbooks on chemical engineering, the resistance coefficient for water meters is given as 7; I wonder if this value can be used. It seems a bit low to me. The pressure drop for positive displacement flow meters should be relatively high, right?

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