Course Description

This 32-hour workshop provides training on centrifugal pumps including their design, operation, maintenance, and hands-on pump disassembly and repair. Lobe pumps can also be included in the training (optional).

It covers pump design, types, parts, common causes of pump failure, repair techniques, and predictive maintenance for pumps. The goal of the course is to ensure that participants understand the causes of pump failure, how to bring pumps back into operation when they fail, what they should learn from those incidents, and how to reduce the risk of future failures.

Hands on training stations will be provided for the training. Companies are encouraged to provide their specific pumps for training When Available.

Course Outline

INTRODUCTION

• Pump operation
• Pump curves
• Design differences between major pump types
• Importance of system curves
• Recirculation
• Pump’s total discharge head requirement
• Closed and open pumping systems
• Pump terminology
• Pump installation
• Cause of wear
• Air entrainment

HYDRAULIC THEORY AND DESIGN

• Energy, work and brake horsepower
• Reading a pump curve
• Impeller types and purpose
• Pump types and classifications
• Suction-specific speed and NPSHR (HSV)
• Single versus double suction
• Split case versus end suction mechanical design considerations
• Twin volutes versus single volute designs
• Variable speed pumping
• Energy loads

CENTRIFUGAL PUMP DESIGN

• Pump Parts and Identification
• Wet End and Dry End Parts
• How to Read a Cross-Sectional View

MECHANICAL SEALS AND PACKING

• Packing, Packing Glands, and Lantern Rings
• Cutting Packing Rings
• Packing Installation
• Gland Leakage Requirements
• Mechanical Seal Types
• Mechanical Seal Installation

OVERHAUL AND REPAIR

• Bearing Removal and Installation
• Identification, Installation and Lubrication
• Press Fitting and Thermal Installation of Bearings
• Bearing Failure Analysis
• Disassembling and Troubleshooting
• Wear Rings
• Setting Impeller Clearances
• Bolted Sealing Values for Wet End Assembly
• Torque Sequence Diagrams
• Torque Value Charts

PUMP INSTALLATION

• Pump Foundations
• Anchoring, Shimming & Grouting
• Pump Shafting Inspection
• “Dos and Don’ts” of Installation
• Pump Coupling and Shaft Alignment
• Soft Foot Inspection and Correction
• Coupling Installation
• Shaft and Laser Alignment
• Pipe Stress Measuring and Corrections
• Wet End Pump Troubleshooting
• Cavitation, Wear, Strain, Leaks, and Failure
• Simple Vibration Analysis

LOBE AND GEAR PUMPS (Optional)

• General Pump Description
• Typical Uses and Applications
• Solids and Viscosity Handling
• Operation and Performance
• Direction of Rotation and Flow
• Direction of Flow and Drive Configuration
• Start-up and Priming
• Disassembly and Reassembly
• Rebuilding the Mechanical Seal Assembly
• Pressure Testing Mechanical Seals
• Adjusting Housing Segments and Lobe Clearances
• Troubleshooting