How to make model selection for centrifugal pump

Centrifugal pump selection principles:

1. Make the pump type and performance to meet the requirements of the equipment flow, head, pressure, temperature, cavitation, suction head and other process parameters.

2. High mechanical reliability, low noise, small vibration

3. In economy, should be comprehensive considered the equipment costs, operating costs, maintenance costs and management fees. . . . . . And so on.