Skip to Content
Energy Machinery, Inc. New England's Compressed Air Specialists

Call: 1-800-643-4330

Email: [email protected]

menu
  • Home
  • About Us
  • Products
    • Reciprocating Compressor
    • Rotary Screw, Scroll & Vane Compressors
    • Variable Speed Compressors
    • Oil-Free Compressors
    • Air Treatment Filters & Accessories
    • Lubricants & Repair Parts
    • Refrigerated Air Dryers
    • Desiccant & Tower Dryers
    • Blowers & Vacuum Pumps
    • Used Machinery
  • Services, Parts & Rentals
    • Parts Department
    • Service Department
    • Rental Rates
    • Chicago Pneumatic Parts
    • Used Machinery
  • Energy Conservation
  • Line Card
  • Contact Us
  • Request a Quote
All Categories > Refrigerated Air Dryers
Request Information

Refrigerated Air Dryers





Compressed air can be damaging to applications that require moisture-free air.  Atmospheric air that enters an air compressor intake contains water vapor.

While in the air compressor, heat from compression and pressurization forces water vapor to condense into liquid droplets.

These droplets travel downstream and can ruin your products, air tools, cylinders, and air motors

Refrigerated air dryers take the moisture-laden air from the air compressor discharge and lower the temperature condensing the water vapor to water and separating it from the air before it goes downstream damaging product and equipment.

How Does a Refrigerated Air Dryer Work?

Compressed air enters the air dryer at a temperature of around 100F.  The air enters an air to air heat exchanger.

In this heat exchanger, the incoming air is pre-cooled by the outgoing cold air.  The air then enters a refrigerant to air heat exchanger which cools the air to around 35F.  

At this lower temperature, the moisture in the air is condensed and separated out of the air and is expelled from the unit.  

Lastly, the air travels through the previously mentioned air to air heat exchanger allowing the incoming warm air to reheat the colder air leaving the air dryer.

The compressed air leaving the dryer has a pressure dew point between 35°F to 50°F.

2 Types of Refrigerated Air Dryers

  1. Non-cycling
  2. Cycling

Non-cycling refrigerated air dryers

Non-cycling refrigerated air dryers operate with the refrigeration compressor running continuously, regardless of the inlet load.  

Minimal energy savings is realized from 100% down to 0% inlet air load.

Cycling Air Dryers

Cycling refrigerated air dryers automatically cycle the refrigeration compressor on and off in response to inlet load conditions as the inlet air load is reduced the refrigeration compressor cycles off, providing energy savings.  

This is done through some type of thermal mass that holds the temperature once the air compressor cycles off

Contact Us for Your Application

Need help deciding on the best one for your application?  Contact us today and a product expert will get back to you immediately!

HPR-Series

HPR Series - Non-cycling Refrigerated Air Dryers 5 to 500 scfm

HPRplus-Series

HPRplus Series ColdWave™ - Refrigerated Air Dryers 100 to 3,000 scfm

HES-Series

HES Series ColdWave™ - Stable 38°F (3°C) dew points

HV-HESSeries

HV Series & HES Series - High-Volume Refrigerated Air Dryers 4,000 thru 20,000 scfm

hseries

H Series - Consistent dew points of 38°F to 50°F, 3°C to 10°C.

HIT-Series

HIT Series - Air Dryers, High Temperature Air to 180°F, 82°C

HPET-ColdWaveSeries_03

HPET Series - Maintains Stable 38°F (3°C) Dew Points

HES Series Energy Saving Refrigerated Air Dryers

HES Series Energy Saving Refrigerated Air Dryers

(8)
HES Series Energy Saving Refrigerated Compressed Air Dryers

HES Series Energy Saving Refrigerated Compressed Air Dryers

(10)
HPRplus Series Non-Cycling Refrigerated Air Dryers

HPRplus Series Non-Cycling Refrigerated Air Dryers

(17)
HPR and HPRN Value Series Refrigerated Compressed Air Dryers

HPR and HPRN Value Series Refrigerated Compressed Air Dryers

(22)

Partners

Garden Denver Garden Denver SPXFLOW SPXFLOW Bauer Compressors Bauer Compressors Airtech Vacuum Airtech Vacuum

Energy Machinery, Inc.

10 Reservoir Park Drive | Rockland, MA 02370

Toll Free: 1-800-643-4330 | Phone: 781-871-6220 | Fax: 781-878-7085 | Email: [email protected] | www.energymachinery.com

Privacy Policy|Sitemap|Catalog Index

Copyright © 2020 Energy Machinery, Inc. All Rights Reserved. | Site Created by Thomas Web Solutions and Powered by Navigator Platform
^