Pumps Course

Lesson 1 • Pump Terminology and Units

Standardises key terms—TDH, BEP, NPSH, and efficiency—used throughout the course. Ensures consistent communication across engineering and maintenance roles.

Lesson 2 • Introduction to Pumps and Their Role

Defines pumps, their industrial importance, and energy-transfer principles. Sets the conceptual baseline for all subsequent technical content.

Lesson 3 • Core Fluid Mechanics Concepts

Introduces pressure, flow rate, velocity, and viscosity as they apply to pumping systems. Provides the physics vocabulary needed for performance analysis.

Lesson 1 • Impeller Design and Function

Analyses open, semi-open, and closed impeller geometries and their effect on performance. Connects impeller design choices to flow, head, and efficiency outcomes.

Lesson 2 • Casing, Volute, and Diffuser

Explains how the casing converts velocity energy to pressure and guides flow to the discharge. Links casing geometry to hydraulic efficiency and radial thrust.

Lesson 3 • Pump Couplings and Drive Arrangements

Reviews flexible couplings, direct drives, and belt drives used to transmit power to pumps. Prepares students to evaluate alignment requirements and drive selection.

Lesson 4 • Materials of Construction

Surveys metals, alloys, and non-metallic materials used for pump wetted parts. Guides material selection based on fluid chemistry, temperature, and pressure.

Lesson 1 • Reciprocating Pump Mechanics

Explains piston, plunger, and diaphragm pump operation, including valve action and pulsation. Connects stroke mechanics to flow rate and pressure capability.

Lesson 2 • Performance Characteristics of PD Pumps

Analyses flow-vs.-pressure curves, volumetric efficiency, and mechanical efficiency for PD pumps. Distinguishes PD behaviour from centrifugal pump curves.

Lesson 3 • Rotary Positive Displacement Pumps

Covers gear, lobe, screw, and vane pump designs and their suitability for viscous fluids. Highlights internal clearances as the key factor in volumetric efficiency.

Lesson 1 • Operating Point and Affinity Laws

Determines the pump operating point at the intersection of pump and system curves. Applies affinity laws to predict performance changes with speed or impeller trim.

Lesson 2 • Cavitation and NPSH Analysis

Explains cavitation causes, damage mechanisms, and NPSH margin requirements. Equips students to diagnose and prevent cavitation in system design.

Lesson 3 • System Curve Development

Guides calculation of static head, friction losses, and minor losses to build a system resistance curve. Links system design to pump selection accuracy.

Lesson 4 • Pump Performance Curves

Teaches construction and interpretation of H-Q, efficiency, and power curves from manufacturer data. Provides the analytical tools for all subsequent performance work.

Lesson 1 • Pump Type Selection Logic

Provides a decision framework for choosing between centrifugal, PD, and specialty pumps. Connects fluid characteristics and duty cycle to the optimal pump family.

Lesson 2 • Piping Layout and Suction Design

Covers suction and discharge piping best practices to protect pump performance and reliability. Reduces field problems caused by poor piping configuration.

Lesson 3 • Specific Speed and Pump Geometry

Uses specific speed (Ns) to guide impeller geometry selection and predict efficiency ranges. Bridges hydraulic theory to practical pump catalogue navigation.

Lesson 4 • Defining Application Requirements

Establishes the process of gathering flow, head, fluid properties, and operating conditions before selection. Prevents costly mismatches between pump and service.

Lesson 1 • Foundation and Baseplate Requirements

Covers grouting, leveling, and baseplate stiffness requirements for stable pump operation. Prevents vibration and misalignment caused by inadequate foundations.

Lesson 2 • Shaft Alignment Techniques

Teaches dial indicator and laser alignment methods to achieve acceptable parallel and angular tolerances. Directly reduces bearing and seal failures from misalignment.

Lesson 3 • Pre-Startup Checks and Flushing

Details the inspection sequence—rotation check, lubrication, seal flush, and piping flush—before first start-up. Prevents early failures caused by contamination or dry running.

Lesson 1 • Vibration Analysis for Pumps

Covers vibration measurement, frequency analysis, and fault signatures specific to rotating pump components. Enables early detection of imbalance, misalignment, and cavitation.

Lesson 2 • Seal and Packing Monitoring

Monitors mechanical seal flush flows, leakage rates, and packing gland temperatures to detect seal degradation. Prevents unplanned shutdowns and environmental releases.

Lesson 3 • Normal Operating Parameters and Limits

Defines acceptable ranges for flow, pressure, temperature, vibration, and current during operation. Establishes the baseline against which deviations are judged.

Lesson 4 • Lubrication Management

Addresses oil and grease selection, change intervals, and contamination control for pump bearings. Proper lubrication is the single largest factor in bearing service life.

Lesson 1 • Preventive Maintenance Planning

Structures time-based and condition-based maintenance tasks into a pump PM programme. Reduces unplanned downtime by addressing wear before failure occurs.

Lesson 2 • Mechanical Seal Replacement

Details seal removal, surface inspection, and installation procedures to achieve leak-free reassembly. Mechanical seal failure is the leading cause of pump downtime.

Lesson 3 • Pump Disassembly and Inspection

Provides step-by-step disassembly procedures, clearance measurements, and wear assessment criteria. Ensures safe teardown and accurate condition evaluation.

Lesson 4 • Systematic Troubleshooting Methods

Applies structured fault-tree and cause-and-effect analysis to common pump problems. Moves students from symptom observation to verified root cause and corrective action.