The Mofidi refrigerated air dryer is one of the most important components of a compressed air system. Air leaving a compressor always carries a lot of water vapor; in the pipes it condenses into water, causing corrosion, damage to valves and pneumatic cylinders, and lower product quality. A refrigerated dryer cools the compressed air to about 3 °C, turning the vapor into liquid and removing it from the air.
Mofidi Refrigerated Air Dryer – Specifications
| Specification | Value |
|---|---|
| Type | Refrigerated air dryer |
| Dew point | About +3 °C |
| Microfilter element | Yes |
| Separator filter | Yes |
| Condensate removal | Via drain valve |
How Does a Refrigerated Dryer Work?
Warm, humid compressed air enters the dryer and is cooled to about 3 °C in a heat exchanger by the refrigeration circuit. At this temperature, water vapor condenses into droplets (lowering the dew point). The water is collected in a separator and discharged through the drain valve, and dry air flows on to the network. The built-in microfilter element and separator filter also reduce particles and contaminants.
Benefits
- Longer life for air tools and pneumatic equipment
- Prevents corrosion and damage to air lines
- Lower repair and maintenance costs
- Better product quality in painting, packaging and production
Applications
- Food and packaging industries
- Chemical and pharmaceutical plants
- Automotive manufacturing and paint shops
- Instrumentation and control
Where to Install the Dryer
Install the refrigerated dryer after the air receiver. Air cools in the tank and part of its water separates there, so the dryer works with less load and better efficiency. Recommended order: compressor → air receiver → dryer → microfilter → network.
Refrigerated or Desiccant Dryer?
For most industrial applications a refrigerated dryer is sufficient and economical. If you need ultra-dry air with a very low dew point, a desiccant air dryer is the better choice.
| Feature | Refrigerated dryer | Desiccant dryer |
|---|---|---|
| Drying method | Cools the air so water vapor condenses | Adsorbs moisture with a desiccant (e.g. activated alumina) |
| Dew point | About +3 °C | Down to about −70 °C |
| Best for | Most general industrial applications | Highly sensitive processes and ultra-dry air |
| Mofidi product | Refrigerated air dryer | Desiccant air dryer |
Maintenance Tips
- Check the drain valve regularly so no water remains in the unit.
- Keep the condenser clean and install the dryer in a ventilated area.
- Replace the microfilter element and separator filter on time.
Further reading: Air Dryer: Ensuring Moisture-Free Compressed Air.
Refrigerated Air Dryer – FAQ
How cold does it cool the air?
To about 3 °C.
Where should the dryer be installed?
After the compressor’s air receiver and before the distribution network.
Does it include filters?
Yes, a microfilter element and a separator filter.
Buy a Refrigerated Air Dryer
Contact Mofidi Air Industry to size a dryer for your compressor and for a quote. See all products in Air Dryers.
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