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Understanding Centrifugal Pump Curves
Understanding Centrifugal Pump Curves When selecting a centrifugal pump, one should match the performance of the pump to that needed by the system. To do that, an engineer would refer to a pumps composite curve. A typical composite curve includes the pump performance curves, horsepower curves and NPSH required.
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Understanding Centrifugal Pump Curves
www.mgnewell.comUnderstanding Centrifugal Pump Curves When selecting a centrifugal pump, one should match the performance of the pump to that needed by the system. To do that, an engineer would refer to a pumps composite curve. A typical composite curve includes the pump performance curves, horsepower curves and NPSH required.
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www.mgnewell.comGreensboro Division / Corporate Headquarters 301 Citation Court Greensboro, NC 27409 Phone: 336.393.0100 / 800.334.0231 Fax: 336.393.0140 Louisville Division
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www.mgnewell.com(Net Positive Suction Head available) NPSHa = Pa ± h s – h fs – Pvp (+h s for flooded section) (-h s for suction lift) where: Pa = pressure absolute above fluid level (bar) h s = static suction head (m) h fs = pressure drop in suction line (m) Pvp = vapor pressure (bar a) Or Pa = pressure absolute above fluid level (psi) h s = static ...
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