1. Pump Selection
Centrifugal - low P (<3.5 MPa), low viscosity, high flow rates
Rotary positive displacement - medium P (<20 MPa), medium viscosity, medium flow rates
Reciprocating - high P (<150 MPa), high viscosity, low flow rates
Special issues - corrosion and abrasion
See Figure 12-3 course pack

2. What determines pump size?
Operating pressure
Elevation change
Acceleration of fluid
Frictional losses

3. Centrifugal Pump Curves
Flowrate
Total head
Power
Efficiency
NPSH
Impeller size

4. Schematic Pump Curve TDH? units? GPM? %? HP? NPSH? units?
What is in inches?

5. Identify the lines and associated units:

6. Pump NPSH Net Positive Suction Head (NPSH) =
Head required at suction of pump in excess of the bubble pressure of the fluid at the pump temperature
Why does this matter?

7. Pump costing Based on power Affected by Adjust for… Materials
Operating pressure
Type of pump
Adjust for…

8. Pumps
FBM is a function of material and pressure factors.

10. Suction pressure?
Discharge pressure?