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PUMP PROBLEMS

  • Cavitation
  • Bearing Wear
  • Corrosion
  • Erosion
  • Galling
  • Health Check
  • Health Monitoring
  • Performance
  • Seizure
  • Shaft Break
  • Vane Pass
  • Vibration
  • Wear

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PUMP TYPES

  • Barrel
  • Can
  • Hot Well
  • Reciprocating
  • Segmental Ring
  • Single Stage Double Suction
  • Split Case
  • Vertical Turbine
  • Wet Pit

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APPLICATION

  • Boiler Feed
  • Boiler Circulator
  • Booster
  • Circulating Water
  • Closed Cooling Water
  • Condensate
  • Containment Spray
  • Core Spray
  • Crude Oil
  • Heater Drain
  • Safety Injection
  • Nuclear Safety
  • Pipeline
  • Reactor Feed
  • Service Water
  • Steam Generator Feed
  • Water

Pump Upgrades

As engineering technology advances, there are upgrades available in:

  • Hydraulic design
  • Mechanical design
  • Materials
  • Support systems

These upgrades can solve an existing problem or enhance performance with additional capacity or efficiency.

Upgrade evaluation includes the expected benefit as well as incremental costs to implement.

New Impeller in Upgraded Material

New Impeller in Upgraded Material with Improved QA Program

Sulzer 72 FFM Volute Pump Upgrade

  • Impeller and shroud material and processing upgrades
  • Redesign impeller shroud for replacement and maintainability

Foster Wheeler 108 MFVC

  • Modified Impellers to Increase Capacity ~ 18%
  • Redesign Casing Liner [Shroud] to prevent rotation
  • Restored damaged shaft
  • Material upgrade to improve shaft sleeve life
  • Other maintenance and operability improvements
Modified Impeller and Shroud

Allis Chalmers 90x72 WCA

  • Modified Impellers and Shroud to Increase Capacity ~ 5%

Ingersoll-Rand 42 APM

  • Emergency repair of failed circulating water pump
  • New impeller increased capacity ~ 5% for additional margin
  • Upgraded major components to stainless steel
  • Added inner column bearing support
  • Made complete CAD layout for future parts/ maintenance
Pump Rotor with New Impeller

Pump Rotor with New Impeller

Ingersoll-Rand 36 AFV Circ Pumps

  • Complete redesign and repair of three pumps in 6 week outage
  • New impellers increased capacity 10%
  • Material upgrades to impellers and shafting
  • Intake model test and modifications to prevent vortexing
  • Added instrumentation

Hayward Tyler 90MT

  • New Impeller in upgraded material
  • New redesigned shroud to eliminate failure modes

Download the Circulating Water Pump Modifications PDF