MSG® 2/3 Centrifugal Air & Gas Compressor

MSG® Integrally Geared Centrifugal Compressors

MSG (multi-stage geared) compressors offer outstanding design flexibility. MSG compressors are application engineered with numerous available configurations:

• Flows from 70 to 3800 m3/min (2500 to 135,000 CFM)
• Input capacity to over 18,650 kW (25,000 hp)
• Discharge pressures to 100 barg (1450 psig)

Features

Oil-Free Air and Gas

• Prevents system contamination
• Reduces the potential for compressed air pipeline fires caused by oil carryover
• No costly waste disposal associated with oil-laden condensate
• Eliminates the expense and maintenance of oil separation filters at the discharge

High Reliability

• MSG centrifugal compressors are designed to be extremely
  reliable due to:
  • Conservative high-quality gear design
  • Long-life pinion bearing design
  • Thrust loads absorbed at low speed
  • Stainless steel compression elements
    

Low Compressor Operating Life Cycle Cost

MSG centrifugal compressors provide better overall operating efficiency than positive displacement or other centrifugal compressors.

• Excellent efficiencies at full load, part load and no load
• Low maintenance cost
• Increased uptime from high-reliability design (limits the need for multiple unit installations for basic reliability reasons)
• No sliding or rubbing parts in the compression process that can cause wear and thereby efficiency loss

GAS FLOW ARRANGEMENT

MSG centrifugal compressors feature an advanced arrangement of gas flow components. Advantages of this arrangement include:

• Directed gas movement to reduce turbulence induced friction
• Air is cooled after every stage to provide high isothermal efficiency

Air Flow Diagram

1. Compressor inlet
2. First-stage compressor volute
3. Coolant in
4. Coolant out
5. First-stage intercooler
6. Second-stage compressor volute
7. Second-stage intercooler
8. Third-stage compressor volute
9. Compressor discharge

Additional Resources

Advantages of Centrifgual Compressor Technology

Excellence in Engineering

The Right Compressor for Your Needs

Seal Design Options