Air Dryer Training
Series: VF, DHT, AES, APET, & AXHP
Series: AMD, AHLD, AHCR, CDP, BHP, ABP, AEHD, & Rental
Frequetly Asked Questions
Question: I HAVE AN AIR DRYER ON MY AIR COMPRESSOR SYSTEM BUT I AM STILL CONTINUE TO GET EXCESSIVE WATER IN THE COMPRESSED AIR LINE. HOW DO I CORRECT THIS PROBLEM?
Check automatic drain traps to ensure they are working properly. Manually drain the air receiver. (Consider adding a Automatic
Tank Drain for convenience). Additionally, implementing a moisture separator to the air line will reduce moisture in the future. If draining does
not resolve your issue, have your air dryer serviced. If it is no longer serviceable, replace the air dryer.
Question: SHOULD I ADD AN AIR DRYER TO MY COMPRESSED AIR SYSTEM?
Although not necessary for DIY at home type compressors, when you use many air tools or air-operated machinery, an air dryer is a must have! An air dryer reduces the amount of water suspended in the air. Hot air holds more water, so the ideal system for the
maximum removal of water is an air dryer. For example, a 10 hp compressor with air entering the system at 75 degrees and 75%
relative humidity produces water at the rate of 6.3 gallons per day.
In practically every function that involves air compression, an absolute dryness of air quality will make the production more cost efficient and seamless. But if water, oil or residue makes their way onto the inner mechanisms of a compressed air system, they may weaken functioning on multiple fronts.
Vaporized water is present in all natural air. After air enters into a compressor, the vapor turns to liquefied water once the air gets too cold to retain any more vapor. The coldness level that causes this process is called the dew point, and it signifies the amount of drying needed for clean air compression.
Typical problems caused by moisture or oil vapor in a compressed air system:
• Rust or wear and tear of moving compressor parts due to eroded lubrication
• Inconsistencies in the texture, tone and adherence of spray-painting applications
• Domino effects on all functions that rely on pneumatic controls — their rusting or clogging can lead to factory shutdowns and untold financial losses
• Ice formation in control lines during winter, which can prevent controls from working properly
• Corrosion of tools that run on gas and air, which can lead to incorrect readings, disruptions or even failures of plant operations
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for more information.