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PETE 1018 · Pump Operation and Maintenance

Led by Senior Rotating Equipment Engineer Simulacrum

5 modules 5 modules · ~30 hours Engineering Updated 6 days ago

Pump operation and maintenance from pump types and performance curves through BEP, NPSH, cavitation, startup and control systems, preventive and predictive maintenance, mechanical seals, alignment, lubrication, troubleshooting, and energy efficiency.

Pump Types, Componen…1Pump Performance: Cu…2Pump Operation: Star…3Maintenance: Prevent…4Troubleshooting, Ene…5
  1. Module 1

    Pump Types, Components, and Operating Principles

    Led by Senior Rotating Equipment Engineer Simulacrum

    The question

    Every pump converts mechanical energy into fluid energy — but the two fundamental categories differ in how. This module covers centrifugal pump operating principles (impeller, volute, velocity-to-pressure conversion), five centrifugal types (single-stage through submersible), positive displacement principles (fixed volume per revolution, flow independent of pressure), four PD types (piston, screw, gear, lobe), the seven pump components and their functions (impeller, casing, shaft, bearings, mechanical seal, coupling, baseplate), and API 682 seal flush plans.

    Outcome

    The student can describe both pump categories, name their subtypes, describe the seven components, explain three seal flush plans, and explain when each pump category is preferred. (Pump types, components, and principles)

    Sub-units

    1. 1.1 Centrifugal Pump Operating Principle and Types
    2. 1.2 Positive Displacement Pump Types and Applications
    3. 1.3 Pump Components: Impeller, Casing, Shaft, and Bearings
    4. 1.4 Mechanical Seals: Types, Flush Plans, and Failure Modes
    5. 1.5 Couplings, Baseplates, and Pump-Driver Arrangement
  2. Module 2

    Pump Performance: Curves, BEP, Selection, and Installation

    Led by Senior Rotating Equipment Engineer Simulacrum

    The question

    The pump performance curve is the most important document in the pump engineer's toolkit — it defines what the pump delivers at every operating point. This module covers reading the H-Q, efficiency, power, and NPSHr curves, constructing the system curve and finding the operating point, the BEP and the acceptable 70–120% operating range, the consequences of operating off-BEP (suction and discharge recirculation), NPSH calculation and the cavitation mechanism, pump selection from duty and fluid properties, and suction piping installation requirements.

    Outcome

    The student can read a pump curve, find the operating point, calculate NPSHa, compare it to NPSHr, apply the affinity laws for speed changes, and describe the suction piping requirements. (Pump performance, selection, and installation)

    Sub-units

    1. 2.1 Reading the Pump Performance Curve
    2. 2.2 The System Curve and the Operating Point
    3. 2.3 BEP, Acceptable Operating Range, and Off-BEP Consequences
    4. 2.4 NPSH: Available, Required, and Cavitation
    5. 2.5 Pump Selection and Installation
  3. Module 3

    Pump Operation: Startup, Shutdown, and Control Systems

    Led by Senior Rotating Equipment Engineer Simulacrum

    The question

    Most pump failures are caused not by defective equipment but by incorrect operation — starting unprimed, running at dead-head, or tripping without depressurisation. This module covers centrifugal pump startup procedure (priming, rotation check, starting against closed discharge), PD pump startup (discharge must be open — overpressure risk), the five parameters monitored during normal operation, three pump control methods (throttle valve, VFD with affinity law savings, minimum-flow recirculation for low-flow protection), and shutdown, standby, and automatic switchover procedures.

    Outcome

    The student can describe the startup procedure for both pump types, explain the five monitored parameters, describe the three control methods with VFD energy savings, and explain the automatic switchover logic. (Pump operation and control)

    Sub-units

    1. 3.1 Centrifugal Pump Startup Procedure
    2. 3.2 PD Pump Startup and Overpressure Protection
    3. 3.3 Normal Operation Monitoring
    4. 3.4 Pump Control: Throttle Valve, VFD, and Minimum-Flow Bypass
    5. 3.5 Shutdown, Standby, and Automatic Switchover
  4. Module 4

    Maintenance: Preventive, Predictive, Seals, Alignment, and Lubrication

    Led by Senior Rotating Equipment Engineer Simulacrum

    The question

    Pump maintenance consumes more budget than any other equipment category — because there are so many pumps and they have wearing components. This module covers the preventive maintenance schedule (daily through overhaul, including wear ring tolerances and shaft runout), four predictive techniques (vibration spectrum analysis for fault diagnosis, oil analysis, thermography, ultrasonic), mechanical seal inspection and replacement (face damage types, O-ring criteria, installation precision), shaft alignment by dial indicator and laser, and three lubrication methods (oil with constant-level oiler, grease with over-greasing risk, oil mist systems).

    Outcome

    The student can describe the preventive schedule, interpret a vibration spectrum to diagnose four faults, describe the seal inspection and replacement procedure, describe both alignment methods, and describe three lubrication methods. (Pump maintenance)

    Sub-units

    1. 4.1 Preventive Maintenance: The Time-Based Schedule
    2. 4.2 Predictive Maintenance: Vibration, Oil Analysis, Thermography, and Ultrasonic
    3. 4.3 Mechanical Seal Maintenance and Replacement
    4. 4.4 Shaft Alignment: Dial Indicator and Laser Methods
    5. 4.5 Lubrication: Oil, Grease, and Oil Mist Systems
  5. Module 5

    Troubleshooting, Energy Efficiency, and Safety

    Led by Senior HSE Engineer Simulacrum

    The question

    When a pump fails, the troubleshooter checks the suction first, then the pump, then the discharge — because most problems originate at the suction. This module develops the diagnostic methodology for six pump problems (no flow, low flow, high vibration, excessive noise, seal leakage, high bearing temperature), energy efficiency practices (VFD vs. throttle valve savings calculated from the affinity laws, impeller trimming for oversized pumps, system piping optimisation), and five safety hazards around pumps (entanglement, high pressure, high temperature, chemical exposure, LOTO) with the control for each.

    Outcome

    The student can diagnose six pump problems from symptoms, calculate the VFD energy saving, describe three system optimisation measures, and describe five safety hazards with their controls. (Troubleshooting, energy efficiency, and safety)

    Sub-units

    1. 5.1 Troubleshooting: No Flow and Low Flow
    2. 5.2 Troubleshooting: Vibration, Noise, and Bearing Temperature
    3. 5.3 Troubleshooting: Seal Leakage and Motor Current
    4. 5.4 Energy Efficiency: VFD, Impeller Trimming, and System Optimisation
    5. 5.5 Safety: Hazards, Controls, and Lockout/Tagout