I. DESCRIPTION OF CENTRIFUGAL PUMPS

A. Basic Pump Parts

1. Case 

2. Impeller 

3. Shaft 

4. Bearings 

5. Seal or Packing 

B. Couplings 

C. Types of Centrifugal Pumps

D. Alternate Sealing Systems

II. PRINCIPLES OF CENTRIFUGAL PUMPS

A. Flow Through Pumps 

B. Centrifugal Force 

C. Head Pressure 

D. Cavitation and Vapor Lock 

E. Performance Curves 

F. Pump Efficiency 

G. Driver Power

H. Liquid Suction Head

I. Thrust

J. Pump Curve Application 

 III. OPERATION 

A. Start-up Procedure 

B. Control of Pump Flow Rate 

C. Shutdown Procedure

D. Routine Operating Checks

IV. TROUBLESHOOTING 

A. Troubleshooting Procedure for Vapor Lock

B. Troubleshooting Procedure for Low Flow Rate