Pump Sizing

There are two main parameters to size a PUMP:-

1. Fluid flow rate
2. Pressure to be developed

Other parameters including:-

• Fluid density
• Fluid viscosity
• Fluid temperature/vaporisation temperature

The Pressure that should be developed by the pump shall equal to the pressure drop in the system - It normally can be found from the pipe sizing tables or relevant method. Pressure drop in the system shall include also friction loss of pipe and fittings. The easiest way to calculate friction loss of pipe is via Hazen-William Equation and friction loss of fittings is via Table of Equivalent length of Fittings.

Typically, flow rate of fluid can be found from the pipe sizing tables.