Dry Air Systems Innovator of A New Line of Regenerative Desiccant Compressed Air Dryers Photo of a Regenerative Desiccant Compressed Air Dryer
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HD Desiccant Series Air Dryer

Why an Air Dryer..

All air systems trap and contain water moisture and contaminants. The chart below illustrates the amount of water accumulated during a 24-hour period. Moisture in compressed air systems unchecked harms or destroys delicate pneumatic controls. Water and contamination shortens their life expectancy and reduces reservoir capacities. 80% of pneumatic equipment failure is due to moisture.

Compressor
HP

Total Inlet
Cubic Feet

Gallons
of Water

25
50
100
250
500
1000
2000

144,000
288,000
720,000
1,440,000
2,880,000
5,760,000
11,520,000

27.2
54.3
135.8
271.7
543.4
1,086.60
2,173.20

Dry Air Systems, Inc. offers air drying systems that improve overall system reliability and its related pneumatic controls and devices. The series of HD air dryers are designed for continuous regeneration of desiccant with less than 7% of air flow required for regeneration.

Size
- The HD2 is 18" x 18" x 8" deep and weighs approximately 45lb.
- The HD3 total envelope size is 26" tall x 21" long x 18" deep and weighs
   75lb.
- Every 2 additional dryers adds 7" in length and an additional 50lb in weight.

Mounting
The HD2 is supplied with a wall mount bracket. All other sizes are supplied with 2 brackets which facilitate either wall or floor mounting.

Maintenance
Change canisters once per year.

Filtering
The replaceable canister contains filters to clean the air of contaminates. Both pre- & post-desiccant filters are present and preloaded to prevent desiccant from escaping.

Expansion Opportunities
Larger manifolds can be purchased or an existing unit can be plumbed "in parallel" with additional units as larger compressor capacities are required.

Installation
Turn off compressor and exhaust air lines. Mount dryer to wall or floor in a convenient location. Plumb unit in line with compressed air, add a bypass if necessary. Plug in the electrical cord. Turn compressor back on.

How Does it Work?
The desiccant (small beads of white chemical) attracts water molecules as the compressed air passes through the desiccant bed in a process called adsorption.

The bed saturates with water from the air inlet and it saturates forward over time. Not a single drop of water is passed until entire bed is saturated.

Before this happens, the control box sends an air signal to the purge port and the canister is suddenly depressurized, which blows most of the water off of the desiccant and through the exhaust port out into the air. Additional compressed, dry, downstream air is backflushed through the system finishing the drying and regeneration of the desiccant bed. This whole process is called desorption.

Online (drying) and offline (purging) dryers are combined and optimized to provide continuous dry air with sufficient flow capacities and minimized regenerative air volume demands saving you money!

 


Features & Benefits

  Heatless-Regenerative Air Dryers
  Continuous Operation Accommodating All Types of Compressor Sizes and Duty Cycles
  Ease of Installation
  Expansion Capabilities, Scalable to fit any need
  Particulate Filtration
  Pressure Dew Point of -40degF
  Electrical Costs - Less Than a 75watt Light Bulb
  Spin-On Desiccant Cartridges for Easy Service

HD Desiccant Series Air Dryers
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