Pump And Piping System Curve

Calculate pump and piping combined system curve (pressure versus flowrate) for viscous and non viscous flow.

For a combined pump and piping system, the flowrate reaches an equilibrium so that the pump delta pressure equals the piping delta pressure. If the pump shutin delta pressure is less than or equal to the piping shutin delta pressure, the flowrate is zero.

The piping delta pressure is calculated from the change in elevation, and piping friction losses calculated from the Moody diagram. The inlet conditions can be calculated for either the liquid depth at the inlet in a tank or reservoir, or the stagnation pressure at the inlet. The outlet conditins can be calculated for either an exit to atmosphere, the liquid depth at the outlet in a tank or reservoir, or the stagnation pressure at the outlet.

Viscous flow is recommended if the kinematic viscosity is greater than 20 cSt. Pump performance is normally measured using water (density is assumed to be 1000 kg/m^3).

PLEASE NOTE : The pump calculators are currently being updated. Apologies for any inconvenience.

Change Module :

• Pump Affinity Or Similarity Law Scaling Calculation Module
• Pump Best Efficiency Point (BEP) Scaling Calculation Module
• Pump Cavitation And NPSH Calculation Module
• Pump Delta Pressure Versus Flowrate Curve Calculation Module
• Pump Delta Temperature Calculation Module
• Pump Efficiency Curve Calculation Module
• Pump Flowrate Pressure And Power Coefficient Calculation Module
• Pump Hydraulic And Input Power Calculation Module
• Pump Liquid Vapour Pressure Viscosity And Density Calculation Module
• Pump Minor Loss Factor Calculation Module
• Pump Specific Speed Calculation Module
• Pump Variable Frequency Drive (VFD) Design Speed Calculation Module
• Pump Viscosity Correction Calculation Module
• All

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