D Series

The D Series is a single-tower desiccant air dryer designed for point-of-use applications.  The rust-free powder-coated aluminum housing is made in North America and includes built-in brackets. A superior alternative to Devilbiss DAD 500, Camair CT30, MP Filenco, Van Air Moisture Block.

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Super-Dry D Series Desiccant Air Dryers Buying Guide

How to Choose the Right Desiccant Air Dryer

A desiccant air dryer removes water vapor from compressed air to help prevent corrosion, freezing, product defects and equipment failures. The correct dryer should be selected based on airflow (SCFM), operating pressure, inlet air temperature and the level of dryness required for your application.

What Should You Consider?

  • Air Flow (SCFM): Select a dryer rated at or above your compressor's maximum airflow.
  • Operating Pressure: Higher operating pressure generally improves drying efficiency.
  • Inlet Air Temperature: Install after an aftercooler and receiver tank whenever possible. Cooler inlet air extends desiccant life.
  • Application: Paint spraying, instrumentation, plasma cutting, laser cutting and outdoor piping often require very dry air.
  • Future Expansion: If your system may grow, choose the next larger model.

  • Where Should a Desiccant Air Dryer Be Installed?

    For best performance, install the dryer after the receiver tank and bulk water separator. A recommended installation sequence is:
    Compressor → Aftercooler → Receiver Tank → Water Separator → SAF Filter → D Series Desiccant Air Dryer → Point of Use

  • Why Install a Desiccant Air Dryer?

    • Removes water vapor from compressed air
    • Helps prevent rust and corrosion
      Protects pneumatic equipment and instrumentation
    • Improves paint, coating and finishing quality
    • Reduces freezing in outdoor compressed air lines
    • Extends equipment life while reducing maintenance

Understanding the D Series

Super-Dry D Series dryers use replaceable activated alumina desiccant cartridges to adsorb water vapor without consuming compressed air. Unlike refrigerated dryers, desiccant dryers provide significantly lower pressure dew points for applications where moisture cannot be tolerated. Fresh desiccant can initially achieve approximately -40°F pressure dew point and typically stabilizes between -20°F and +20°F depending on operating conditions.

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Frequently Asked Questions

What does a desiccant air dryer do?

It removes water vapor from compressed air using activated alumina desiccant.

When do I need a desiccant dryer?

Whenever moisture can damage equipment or affect product quality, such as painting, instrumentation, plasma cutting, laser cutting and outdoor air lines.

What is the difference between a water separator and a desiccant dryer?

A water separator removes bulk liquid water while a desiccant dryer removes water vapor.

Do I need a filter before the dryer?

Yes. A water separator and SAF filter help protect the desiccant and extend cartridge life.

What dew point can the D Series achieve?

Fresh desiccant can initially achieve approximately -40°F pressure dew point and typically stabilizes between -20°F and +20°F.

Can the D Series remove oil?

No. Oil aerosols should be removed with the appropriate SAF filters before the dryer.

How do I choose the correct model?

Select the model based on SCFM, operating pressure, inlet temperature and required air quality.

How often should the desiccant cartridge be replaced?

Replacement depends on moisture load, operating hours and maintenance practices.

Why should I oversize a dryer?

Oversizing increases desiccant life, lowers pressure drop and allows for future expansion.

Why choose Super-Dry D Series dryers?

They feature zero air loss, replaceable cartridges, rugged aluminum construction and simple maintenance.