Centrifugal Air Compressors

Centrifugal air compressors are most effective when running at full capacity. They are best suited to applications that require constant demand. FS-Elliott Polaris Compressors are designed to deliver the high quality, energy efficiency, and ease of operation that make any industrial job more successful.


The FS-Elliott Polaris+ compressor line provides you with unparalleled reliability, ease of maintenance and industry-leading energy efficiency in a standard package. Cutting-edge aerodynamic design and the most advanced control system in a flexible package make the Polaris+ the best value on the market. Combine these great features with our worldwide network of qualified service technicians and you can be sure C.H. Reed will provide you with the highest value solution available.


Preventive Maintenance Tips for Centrifugal Air Compressors

There is no single, established approach to an effective maintenance program for centrifugal air compressors. It is important to tailor the maintenance program to each installation.

  • Check lubricating and seal oil reservoirs
  • Check lubricating and seal system oil filters
  • Check operation of all coolers and traps
  • Review all supervisory and process instruments
  • Listen for noise level and pitch changes
  • Visually inspect for leaks and loose parts
  • Check differential pressures across intake filters, intercoolers, aftercoolers, and interstage separators
  • Observe levels in sight flows for abnormal level changes
  • Verify the calibration and operation of all protective alarm and trip devices through actual test
  • Make a vibration survey of each bearing housing
  • Test the performance of all intercoolers, aftercoolers, and oil coolers
  • Lubricate the linkage, pins, and slide bars of all control valves, valve positioners, and guide vane positioners
  • Analyze oil samples from lubricating and seal oil reservoirs
At major shutdowns
  • Inspect couplings
  • Verify alignment of all couplings
  • Clean and inspect all journal bearings
  • Clean and inspect all thrust bearing assemblies
  • Inspect oil baffles for signs of rubbing, plugged drain holes, or chipped touch points
  • Remove the casing cover for an internal inspection if performance levels or maintenance schedules dictate
  • Drain and clean each lubrication and seal system
  • Remove and inspect process check valves
  • Inspect expansion joints Inspect speed increasers
  • Check the calibration of all instruments and alarm and trip devices
  • Follow the driver manufacturer's recommended inspection and maintenance procedures
Centrifugal Air Compressors