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Unit Conversions Kinematic & Dynamic Viscosity Conversion Pipe Friction Loss Calculator Line Shaft Bearing Loss Calculator Horizontal Tank Volume Calculator Vertical Tank Volume Calculator Spherical Tank Volume Calculator Atmospheric Pressure Calculator
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  • Definitions & Resources
    • A) Welcome & Introduction
    • B) Acronyms & Definitions
    • C) Pump Types
    • D) References
    • E) Additional Resources
  • Pump Fundamentals
    • A) Foundational Concepts
    • B) System Curves
    • C) Rotodynamic Pump Types
    • D) Rotodynamic Pump Curves
    • E) Pump Principles
    • F) Positive Displacement Pump Types
    • G) Positive Displacement Pump Principles
    • H) Positive Displacement Pump Curves
    • I) Operating Point
  • Fluid Properties
    • A) Water
    • B) Solids and Slurries
    • C) Viscosity
    • D) Other Fluids
  • Fluid Flow
    • A) Pipe Frictional Losses
    • B) Losses in Valves, Fittings, and Bends
    • C) Losses With Other Fluids
    • D) Losses in Nozzles
    • E) Losses With Paper Stock
  • Pipe, Flange & Motor dimensions
    • A) Steel Pipe
    • B) Stainless Steel Pipe
    • C) Ductile Iron Pipe
    • D) Non-Ferrous Pipe and Tube
    • E) Plastic PVC Pipe
    • F) Flange Dimensions
    • G) Motor Dimensions
  • Calculators
    • A) Unit Conversions
    • B) Kinematic & Dynamic Viscosity Conversion
    • C) Pipe Friction Loss Calculator
    • D) Line Shaft Bearing Loss Calculator
    • E) Horizontal Tank Volume Calculator
    • F) Vertical Tank Volume Calculator
    • G) Spherical Tank Volume Calculator
    • H) Atmospheric Pressure Calculator
  • About the HI DATA TOOL
    • Releases
    • Members and Contributors
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  • A) Welcome & Introduction
  • B) Acronyms & Definitions
  • C) Pump Types
  • D) References
  • E) Additional Resources

  • A) Foundational Concepts
  • B) System Curves
  • C) Rotodynamic Pump Types
  • D) Rotodynamic Pump Curves
  • E) Pump Principles
  • F) Positive Displacement Pump Types
  • G) Positive Displacement Pump Principles
  • H) Positive Displacement Pump Curves
  • I) Operating Point

  • A) Water
  • B) Solids and Slurries
  • C) Viscosity
  • D) Other Fluids

  • A) Pipe Frictional Losses
  • B) Losses in Valves, Fittings, and Bends
  • C) Losses With Other Fluids
  • D) Losses in Nozzles
  • E) Losses With Paper Stock

  • A) Steel Pipe
  • B) Stainless Steel Pipe
  • C) Ductile Iron Pipe
  • D) Non-Ferrous Pipe and Tube
  • E) Plastic PVC Pipe
  • F) Flange Dimensions
  • G) Motor Dimensions

  • A) Unit Conversions
  • B) Kinematic & Dynamic Viscosity Conversion
  • C) Pipe Friction Loss Calculator
  • D) Line Shaft Bearing Loss Calculator
  • E) Horizontal Tank Volume Calculator
  • F) Vertical Tank Volume Calculator
  • G) Spherical Tank Volume Calculator
  • H) Atmospheric Pressure Calculator

  • Releases
  • Members and Contributors

Positive Displacement Pump Curves

Flow versus speed curves

Flow versus pressure curves

Variable speed curves

Parallel pump curves

Pump curve demonstrator

Last updated on August 31, 2026

Related topics

A) Foundational Concepts
B) System Curves
C) Rotodynamic Pump Types
D) Rotodynamic Pump Curves
E) Pump Principles
F) Positive Displacement Pump Types
G) Positive Displacement Pump Principles
I) Operating Point