Keltec KMDAD Desiccant Compressed Air Dryers
ProAirSupply offers Keltec KMDAD modular desiccant air dryers for industrial compressed
air systems requiring significantly reduced moisture levels. The KMDAD series uses
activated alumina desiccant and is designed to provide a pressure dew point of
-40°F under rated operating conditions.
KMDAD desiccant dryers are available in capacities from 3 to 240 SCFM
for applications where refrigerated air drying alone may not provide a sufficiently
low dew point.
Why Use a Desiccant Compressed Air Dryer?
Desiccant air dryers are used when compressed air must be dried to a lower dew point
than is typically achieved with refrigerated air dryers. Reducing moisture in a
compressed air system can help protect piping, pneumatic equipment, instrumentation,
controls, and moisture-sensitive processes.
KMDAD Series Features
-
-40°F pressure dew point under rated operating conditions
-
Activated alumina desiccant for moisture removal
-
Modular construction for industrial compressed air applications
-
Floor or wall mounting capability
-
Mini PLC monitor displays the drying and regeneration cycle
-
Maximum working pressure: 230 PSI
-
Maximum inlet temperature: 122°F
-
Maximum ambient temperature: 122°F
KMDAD Standard Operating Specifications
| Pressure Dew Point |
Normal Inlet Temp. |
Normal Working Pressure |
Max. Inlet Temp. |
Max. Working Pressure |
Max. Ambient Temp. |
| -40°F |
100°F |
100 PSI |
122°F |
230 PSI |
122°F |
KMDAD Desiccant Air Dryer Specifications
Compare KMDAD models by airflow capacity, connection size, electrical requirements,
weight, and overall dimensions. Dimensions are shown as
Length × Width × Height.
| Model |
Capacity
(SCFM) |
Connection |
Voltage |
Weight
(lb / kg) |
Dimensions L × W × H
(in.) |
|
KMDAD-3
|
3 |
1/2" |
115/1/60 Hz |
37 / 17 |
13.2 × 12.6 × 22 |
|
KMDAD-5
|
5 |
1/2" |
115/1/60 Hz |
41 / 19 |
12.6 × 12.6 × 25 |
|
KMDAD-10
|
10 |
1/2" |
115/1/60 Hz |
59 / 27 |
12.6 × 12.6 × 35.5 |
|
KMDAD-15
|
15 |
1/2" |
115/1/60 Hz |
68 / 31 |
13.8 × 14.5 × 31.8 |
|
KMDAD-20
|
20 |
1/2" |
115/1/60 Hz |
92 / 42 |
13.8 × 14.5 × 43.6 |
|
KMDAD-25
|
25 |
1/2" |
115/1/60 Hz |
105 / 48 |
13.8 × 14.5 × 49.5 |
|
KMDAD-30
|
30 |
1/2" |
115/1/60 Hz |
118 / 54 |
13.8 × 14.5 × 59.4 |
|
KMDAD-40
|
40 |
1-1/2" |
115/1/60 Hz |
143 / 71 |
19.5 × 16.1 × 49.2 |
|
KMDAD-50
|
50 |
1-1/2" |
115/1/60 Hz |
156 / 78 |
19.5 × 16.1 × 55.1 |
|
KMDAD-60
|
60 |
1-1/2" |
115/1/60 Hz |
171 / 92 |
19.5 × 16.1 × 68.8 |
|
KMDAD-75
|
75 |
1-1/2" |
115/1/60 Hz |
202 / 120 |
24.5 × 17 × 51.1 |
|
KMDAD-100
|
100 |
1-1/2" |
115/1/60 Hz |
264 / 133 |
24.5 × 22 × 58 |
|
KMDAD-120
|
120 |
1-1/2" |
115/1/60 Hz |
292 / 152 |
24.5 × 25 × 68.8 |
|
KMDAD-180
|
180 |
1-1/2" |
115/1/60 Hz |
409 / 186 |
28.9 × 16.1 × 59 |
|
KMDAD-240
|
240 |
1-1/2" |
115/1/60 Hz |
517 / 235 |
35 × 16.1 × 59 |
KMDAD Dryer Capacity Correction Factors
Published KMDAD capacities are based on standard operating conditions of
100 PSI operating pressure and
100°F inlet temperature. Actual operating conditions should be
considered when selecting the appropriate dryer size.
Operating Pressure Correction Factor
| Pressure (PSI) |
50 |
60 |
70 |
80 |
90 |
100 |
110 |
120 |
130 |
140 |
150 |
175 |
200 |
225 |
250 |
| Factor F1 |
0.56 |
0.65 |
0.74 |
0.83 |
0.91 |
1.00 |
1.06 |
1.08 |
1.12 |
1.16 |
1.20 |
1.29 |
1.37 |
1.45 |
1.52 |
Inlet Temperature Correction Factor
| Inlet Temperature (°F) |
70 |
80 |
90 |
100 |
105 |
110 |
115 |
120 |
| Factor F2 |
1.12 |
1.09 |
1.06 |
1.00 |
0.93 |
0.86 |
0.80 |
0.75 |
How to Size a KMDAD Desiccant Air Dryer
To determine the required dryer capacity, divide the required system airflow by the
applicable pressure correction factor and inlet-temperature correction factor:
Required Dryer Capacity = Required Airflow ÷ Pressure Factor (F1) ÷
Inlet Temperature Factor (F2)
For example, a system requiring 100 CFM at 100 PSI with a 110°F inlet
temperature uses a pressure factor of 1.00 and an inlet-temperature factor
of 0.86:
100 ÷ 1.00 ÷ 0.86 = approximately 116 CFM
The next suitable listed dryer capacity is the
KMDAD-120
.
Selecting the Correct Desiccant Air Dryer
When selecting a KMDAD dryer, consider required airflow, operating pressure, inlet
temperature, connection size, electrical supply, and the required pressure dew point.
Dryer capacity should be corrected for actual operating conditions before selecting
a model.
Select a KMDAD model from the table above to view detailed product specifications,
availability, and ordering information from ProAirSupply.
