Aftercoolers
Airpower manufacture after coolers for compressors with a high air outlet temperature. If correctly sized, the air outlet temperature will be brought down to ambient temperature plus 5°C to 10°C.
Our Aftercoolers:
Models from 750 liter/min up to 6000 liter/min are the most popular sizes, but we can virtually build any size.
The fan motors can be any specified voltage DC or AC on request.
Normally Airpower fits a mechanical condensate drain, but electric timer drains are also an option.
Airpower can build horizontal or vertical mounted models.
If you cannot hold the supply air-line without getting burned, (40°C) you will need an after cooler before your compressed air can enter any dryer or filter system.
What is an Aftercooler?
Aftercoolers are mechanical heat exchangers used to remove the heat and moisture from a compressed air stream so that it is cold and dry enough for use in air-operated equipment.
A compressed air aftercooler has three main functions:
- Cooling the air discharged from the air compressor,
- Condensing the moisture in the discharged air so it can be removed, and
- Filtering out any oil or other contaminants such as rust particles from the compressor.
What are the benefits of using Aftercoolers for Air compressors?
The benefits of using an aftercooler are to reduce the load of cooling the compressed air, from the refrigerant dryer. It will also help to reduce the moisture from the compressed air.
Frequently Asked Questions
If I already have a refrigerated dryer, do I still need an aftercooler?
Yes. Refrigerated dryers are designed to accept air at around 35°C-40°C. If your compressor discharges air hotter than this (which many piston units do), it will overload the dryer, causing it to fail. An aftercooler bridges this gap by cooling the air down to ambient +10°C before it enters the dryer.
How do I know if my system needs an aftercooler?
A simple "touch test" is a good indicator. If you cannot hold the discharge pipe from your compressor because it is too hot (over 40°C), you need an aftercooler. Without one, you are sending excessive heat and moisture into your downstream equipment.
Can Airpower build an aftercooler for a specific voltage?
Yes, we manufacture aftercoolers in-house and can fit fan motors with any specified voltage (DC or AC) to match your site's power supply.
Does the aftercooler remove moisture from the air?
It removes the bulk of the moisture (about 70%). By cooling hot air, the water vapor condenses into liquid. We fit mechanical or electric timer drains to our aftercoolers to automatically flush this water out before it travels further down the line.
What is the difference between horizontal and vertical mounting?
Functionally they perform the same, but the choice depends on your floor space and piping layout. We can build either configuration to ensure the unit fits neatly into your compressor room.
Refrigerated Dryers
Refrigerated air dryers from 750 liters/min up to 17000 liter/min ex-stock. Larger ex overseas. Dew point 4°C under pressure. Automatic drain pre and manual drain after filters.
Screw Compressors
Screw compressors have no valves or other mechanical forces to cause imbalances unlike piston compressors.
Compressor Components
Airpower keeps universal spare parts for compressors. Pressure switches, non return valves and safety valves are universal to all compressors. Bottom entry filters/ regulators, electric motors and starters can be used for many makes of compressors.
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