Industrial Vapor Compression Distillation

vapor compression


Vapor Compression for Desalination

In 1939, MECO patented the vapor compression process for the desalination of saltwater. Since then, we’ve refined and improved the technology to deliver high-quality potable drinking water and distilled water in some of the world’s harshest environments. And since MECO has installations worldwide, you have access to a global service network that can respond quickly to emergencies and service maintenance needs.


Technical Data
PEE2100M3C2,100 [8]
PEE2750M3C2,750 [10]
PEE5500M3C5,500 [21]
PEE6600M3C6,600 [25]
PEE7500M3C7,500 [28]
PEE10000M3C10,000 [38]
PEE15000M3C15,000 [57]
PEE20000M3C20,000 [76]

Notes: Capacities are based on seawater with a TDS of 35,000 ppm at 77°F (25°C). MECO M3C units typically operate based on a concentration ratio of 1.77.


  • Leading manufacturer of vapor compression desalination plants
  • Produces potable drinking water and high-quality distilled water
  • Completely packaged units for minimum field installation
  • Superior energy efficiency
  • Offers the largest vapor compression still available capacity of 20,000 gallons per hour
  • All components manufactured by MECO
  • Spare parts also available
  • Supported by MECO 24-hour customer service
  • Backed by warranty
Standard Features
  • Vertical natural circulation evaporator
    • Feedwater quality tolerance
    • Scale effects reduced
    • No pumps or spray nozzles
  • Straight annealed tubes in evaporator
    • Individual tubes can be replaced as opposed to replacing the entire tube bundle
    • No residual stresses or surface finish problems commonly found with U-tubes
  • Deaeration of feedwater
    • Non-condensibles removed prior to distillation
    • Corrosion reduction
  • Corrosion resistant materials
    • 90/10 copper nickel
    • Titanium
    • Inconel
    • Monel
Equipment Details

Galvanized rigid steel conduit

  • Stainless steel airlines
  • Integrated control and instrument panel
  • TEFC motors


MECO Vapor Compressor

  • Manufactured by MECO
  • Immediate spare parts availability
  • Exchange program
  • Inconel impeller and Monel-process contact components
  • New Lube Lock Sealing System
  • Directly mounted with no vapor ductwork
  • Space friendly
  • Smaller footprint
  • Easy access for maintenance

Ready for More?

Request Industrial Capabilities Information

Request Information