Is Drying Air Before a Compressor the Best Way to Limit Water Vapor?

  • Thread starter LotteVV
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In summary, the conversation discusses the use of a dryer before the compressor in order to limit the presence of water vapor and prevent bacteria from reaching the oil filter. It is suggested to use a desiccant air dryer, although it may be more expensive than drying the air after compression.
  • #1
LotteVV
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Hi,

I was wondering if a dryer is ever placed before the compressor? For limiting the presence of water vapor before the compressor inlet, I was thinking of drying the air before the compressor (it's a closed system btw). Is this the right technique? Or you this be done otherwise?

Limiting the water vapor is so make sure no bacteria can reach the oil filter that is located right after the compressor.

Kind regards
Lotte
 
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  • #2
It can be done, but you would need a good desiccant air dryer because you are up against pressure dew point (search those terms). Here is one good hit: https://www.vaisala.com/sites/default/files/documents/Dew-point-compressed-air-Application-note-B210991EN-B-LOW-v1.pdf

It would be more expensive than drying the air after compression, but it just might be worthwhile in your case.
 

1. What is the purpose of a dryer before a compressor?

A dryer before a compressor is used to remove moisture from the air before it enters the compressor. This helps prevent corrosion and damage to the compressor and other components in the system.

2. How does a dryer before a compressor work?

A dryer before a compressor typically uses a desiccant material, such as silica gel, to absorb moisture from the air. The air is then passed through a filter to remove any remaining contaminants before entering the compressor.

3. What types of dryers are used before compressors?

There are several types of dryers that can be used before compressors, including refrigerated dryers, desiccant dryers, and membrane dryers. The type of dryer used will depend on the specific needs of the system.

4. Can a dryer before a compressor improve the efficiency of the system?

Yes, a dryer before a compressor can improve the efficiency of the system by removing moisture and contaminants from the air. This helps the compressor run more smoothly and reduces the risk of breakdowns or damage.

5. How often should a dryer before a compressor be maintained?

The frequency of maintenance for a dryer before a compressor will depend on the type of dryer and the specific needs of the system. However, it is generally recommended to have the dryer inspected and serviced at least once a year to ensure optimal performance.

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