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home Best Technology / FAQs / How does a vapor degreaser work?

How does a vapor degreaser work?

If you’ve ever been wearing glasses as you walked into an air-conditioned building on a hot summer day, you already have a good understanding of part of the Vapor Degreaser process works. (For those in colder northern climates, walking outside while wearing glasses on a cold winter day is an even better example)

So, how does a vapor degreaser work? A vapor degreaser has two tanks (sumps) of solvent inside. One vapor degreasing tank boils the solvent (boil sump) which creates a vapor or mist of the solvent. The second sump (ultrasonic sump) is heated but not to the boiling point and is used as the second cleaning stage.  The vapor degreaser also has bands of cooling coils inside just above the level of the sumps. These coils cause the vapor to return to a liquid state and fall back into the sump.  The effect is like small “clouds” of the solvent are formed between the top of the sumps and the cooling tubes.

As parts at room temperature are lowered through the cooling area into the vapor, the vapor from the boil sump condenses on the parts just like moisture in the air does on your glasses in the examples above.  This condensation contains the solvent that dissolves the oils on your parts, and the beading action creates droplets which run across the surfaces of the parts and fall back into the boil sump. The parts are then moved to the ultrasonic sump which contains heated but non-boiling solvent.  This allows the parts to be lowered into the sump so that any blind holes or internal features are also thoroughly exposed to the solvent.

Finally parts are raised into the cooling coil area to allow the solvent to quickly dry and and then raised through a second layer of freeboard coils near the very top of the vapor degreaser that insure complete drying and the recapture of the solvent from the parts.

The below video demonstrates the vapor degreasing process:

Latest News & Products from Best Technology

Semi-Automated Inline Citric Passivation Solution with Data Tracking

For one medical device manufacturer, the design of a citric passivation solution faced two major challenges: The manufacturing process required performing a water-break test after cleaning parts, before proceeding to passivation. This meant that they could not use a fully automated passivation solution. The system had to have data tracking for quality control purposes. Semi-Automated […]

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  • Request More Information
  • Industrial Parts Washers
    ✛
    • Agitated Immersion Heated Parts Washers
    • Inline Conveyor Wash-Rinse-Dry Parts Washers
    • Immersion Inline Parts Washer
    • Spray Cabinet Parts Washers
      ✛
      • Front Load Spray Cabinet Parts Washer
      • Top Load Spray Cabinet Industrial Parts Washer
    • Vertical Door Pass Through Parts Washer
    • Rotary Drum Parts Washer
    • Powder Coat Prep Equipment
    • Phosphating Lines
    • Pipe Washing Equipment
  • Precision Cleaning Systems
    ✛
    • Applicable Articles
    • How clean is clean?
    • How Do Ultrasonic Cleaners Work?
    • Ultrasonic Benchtop Parts Cleaner
    • Benchtop Ultrasonic Parts Cleaning Multi-Tank Systems
    • Ultrasonic Cleaning Consoles
    • Automated Ultrasonic Parts Cleaning Equipment Wash-Rinse-Dry
    • Large Scale Automated Precision Aqueous Cleaning for Cellular Manufacturing
    • Agitated Immersion Ultrasonic Parts Washer
    • Machine Shop Parts Washer for Swiss and CNC Precision Parts
    • Immersible Ultrasonic Transducers
    • Vapor Degreasers
  • Passivation Equipment
    ✛
    • Applicable Articles
    • What is Passivation? How Does It Work?
    • Nitric vs. Citric Acid Passivation
    • CitriSurf – Citric Acid Passivation
    • Benchtop Ultrasonic Passivation Equipment
    • Ultrasonic Automated Passivation Equipment
    • Automated Ultrasonic Passivation System for Medical Device Parts
    • Passivation Wet Bench for Citric / Nitric Acid
    • Cleanroom Space Saving Automated Passivation System
    • Heated Polypropylene Acid Passivation and Rinse Tanks
    • Agitated Immersion Multi-Tank Passivation Systems
    • Automated Chemical Neutralization Tank / Cart
  • Electropolishing Equipment
    ✛
    • What is electropolishing? How does electropolishing work?
    • Electropolishing Cycle and Current Calculator
    • What is Dry Electropolishing? How does it work?
    • Passivation vs. Electropolishing
    • Table Top Electropolishing Equipment & Electropolishing Machines
    • Electropolishing Wet Benches
    • Large Scale Part Electropolishing Systems
    • Dry Electropolishing Machines
    • EP System – Open Top Wet Bench with Spray Rinse
  • Surface Finishing Systems
    ✛
    • Alodine Lines
      ✛
      • What is Alodine / Chem film / Chromate Conversion Coating?
      • Alodine Chem Film Tank Line
    • Mass Finishing Machines
      ✛
      • Centrifugal Barrel Finishing Machines
      • Spin Dryers / Chip Wringers
      • Vibratory Bowl Polishers
    • Titanium Anodizing Equipment
  • Wet Benches
    ✛
    • Citric / Nitric Passivation Wet Bench for Stainless Steel & Titanium
    • Electropolishing Equipment in a Wet Bench / Fume Hood
    • Fume Hoods
    • Wet Benches for Semiconductor & FM4910 Applications
    • Quick Dump Rinse Tank
  • Specialty & Custom Industrial Process Systems
    ✛
    • Automated Chemical Neutralization Tank / Cart
    • Vapor and Dryfilm PTFE Coating Systems
    • Heated Hot Air Parts Dryer
    • Solvent Recovery Equipment
  • Precision Cleaning Chemistries, Solvents & Fluids
    ✛
    • Why Use a Parts Cleaning Solvent?
    • 3M Novec Engineered Fluids, Fluorinert Liquids, Solvents & Chemicals
    • Solvent Cleaning with 3M Novec Engineered Fluids
    • Thermal Management / Heat Transfer with 3M Novec and Fluorinert Fluids
    • 3M Novec 72DA 73DE Solvent Vapor Degreaser For Medical Device Instruments
    • Solvent Phase-outs
      ✛
      • AK225 HCFC-225 Phase Out and Replacement with 3M Novec HFE Engineered Fluids
      • Medical Device AK 225 Replacement with 3M Novec Engineered Fluid Solvent
      • nPB Replacement
    • Aqueous Cleaning Chemistries
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    ✛
    • Industrial Parts Washer Case Studies
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    • Passivation Systems Case Studies
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