Course Objective
This course provides a solid understanding of pump operations and maintenance and provides a primer on mechanical seals used in pumping applications. Students will learn how to troubleshoot common pumping problems and diagnose failures. Critical measurements during the rebuild process are emphasized. Covers both centrifugal and positive displacement pumps.

Benefits
Corrects many misconceptions about proper pump operation
Provides students with skills for resolving pumping problems and diagnosing failures
Identifies the critical dimensions and record keeping required during pump rebuilds

Activities
Size a pump for a job and discuss consequences of system changes or changes in speed or impeller size
Troubleshoot pump problems in the field
Disassemble and re-assemble a centrifugal pump

Outline

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Centrifugal Pump Design and Operation
Types of Pumps and Ranges of Operation
Fundamentals of Pressure and Hydraulics
System Considerations - Static Head, Velocity Head, and Line Losses
Pump Characteristics - Capacity & Flow Rate, Total Dynamic Head, Efficiency, Brake Horsepower, and Net Positive Suction Head (NPSH)
Proper Pump Selection Using Pump Curves
The Pump Affinity Laws

Centrifugal Pump Repair
ANSI Back Pullout Design
Checks and Measurements
Rebuild Check List

Displacement Pumps
Displacement Pump Types
Common Diaphragm Pumps
Rotary and Gear Pump Designs
Screw Pumps

Diagnosing Pump Problems
Causes of Loss in Capacity or Pressure
Correcting Cavitation Problems
Problems of Corrosion and Erosion
Mechanical Problem Detection Through Vibration Measurement
Correcting Common Mechanical Problems

Pump Installations
Foundation Design
Grouts and Base Plate Design
Proper Piping Supports
Alignment Standards and Cold Settings

Mechanical Seals
Mechanical Seal Operation
Types of Seals and Their Applications
Materials of Construction Used in Seal Components

Seal Failure Analysis
Primary Seal Failure
Secondary Seal Failures