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A nano VDR variable speed refrigerated compressed air dryer

Refrigerated Compressed Air Dryers

Variable Speed Dryers

The nano VDR variable speed refrigerated compressed air dryers use a refrigerant circuit and heat exchangers to cool compressed air so that it condenses the moisture in the air. They can provide a pressure dew point (PDP) as low as +37.4°F/3°C and consume no compressed air in the process. Unlike direct expansion dryers which run continuously at full speed, the nano VDR variable speed refrigeration compressors only run at the speed required to dry your process air to the dew point set point of the dryer.

Key Specs:

Flow Rate

2600 to 8450 scfm

Connection

6” to 8” Flg

Air Quality

ISO 8573.1:2010 Class 4

nano-purification solutions product brochure with equipment details

R6 VDR - Brochure

Filename
EN-R6-VDR-brochure-variable-speed-cycling-refrigerated-air-dryers.pdf
Size
2 MB
Format
application/pdf
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ISO compressed air quality standards brochure

ISO Compressed Air Quality Standards

Filename
EN-ISO-brochure-compressed-air-quality-standards.pdf
Size
7 MB
Format
application/pdf
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R6 VDR 2600-5050 - Installation Diagram

R6 VDR 2600-5050 - Installation Diagram

Filename
R6-VDR-2600-5050-installation-diagram-instructions-variable-speed-refrigerated-dryer.pdf
Size
1020 KB
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application/pdf
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R6 VDR 6350-8450 - Installation Diagram

R6 VDR 6350-8450 - Installation Diagram

Filename
R6-VDR-6350-8450-installation-diagram-instructions-variable-speed-refrigerated-dryer.pdf
Size
1 MB
Format
application/pdf
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equipment worksheet product technical paper

R-Series Application Worksheet

Filename
EN-R-series-worksheet-refrigerated-dryers.pdf
Size
186 KB
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application/pdf
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The ga drawing for the aircooled R6 VDR 2600-5050 models

R6 VDR 2600-5050 (aircooled) [Imperial]

Filename
R6-VDR-2600-5050-aircooled-ga-general-arrangement-drawing-imperial-variable-speed-refrigerated-dryer.pdf
Size
912 KB
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application/pdf
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The ga drawing for the aircooled R6 VDR 2600-5050 models

R6 VDR 2600-5050 (aircooled) [Metric]

Filename
R6-VDR-2600-5050-aircooled-ga-general-arrangement-drawing-metric-variable-speed-refrigerated-dryer.pdf
Size
911 KB
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application/pdf
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The ga drawing for the watercooled R6 VDR 2600-5050 models

R6 VDR 2600-5050 (watercooled) [Imperial]

Filename
R6-VDR-2600-5050-watercooled-ga-general-arrangement-drawing-imperial-variable-speed-refrigerated-dryer.pdf
Size
379 KB
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application/pdf
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R6 VDR 2600-5050 (watercooled) [Metric] - General Arrangement (GA) Drawing

R6 VDR 2600-5050 (watercooled) [Metric]

Filename
R6-VDR-2600-5050-watercooled-ga-general-arrangement-drawing-metric-variable-speed-refrigerated-dryer.pdf
Size
378 KB
Format
application/pdf
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The ga drawing for the aircooled R6 VDR 6350-8450 models

R6 VDR 6350-8450 (aircooled) [Imperial]

Filename
R6-VDR-6350-8450-aircooled-ga-general-arrangement-drawing-imperial-variable-speed-refrigerated-dryer.pdf
Size
1022 KB
Format
application/pdf
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The ga drawing for the aircooled R6 VDR 6350-8450 models

R6 VDR 6350-8450 (aircooled) [Metric]

Filename
R6-VDR-6350-8450-aircooled-ga-general-arrangement-drawing-metric-variable-speed-refrigerated-dryer.pdf
Size
1021 KB
Format
application/pdf
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The ga drawing for the watercooled R6 VDR 6350-8450 models

R6 VDR 6350-8450 (watercooled) [Imperial]

Filename
R6-VDR-6350-8450-watercooled-ga-general-arrangement-drawing-imperial-variable-speed-refrigerated-dryer.pdf
Size
481 KB
Format
application/pdf
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R6 VDR 6350-8450 (watercooled) [Metric] - General Arrangement (GA) Drawing

R6 VDR 6350-8450 (watercooled) [Metric]

Filename
R6-VDR-6350-8450-watercooled-ga-general-arrangement-drawing-metric-variable-speed-refrigerated-dryer.pdf
Size
479 KB
Format
application/pdf
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R6 VDR 2600-5050 - Electrical Diagrams

R6 VDR 2600-5050 - Electrical Diagrams

Filename
R6-VDR-2600-5050-electrical-wiring-schematics-variable-speed-refrigerated-dryers.pdf
Size
3 MB
Format
application/pdf
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R6 VDR 6350-8450 - Electrical Diagrams

R6 VDR 6350-8450 - Electrical Diagrams

Filename
R6-VDR-6350-8450-electrical-wiring-schematics-variable-speed-refrigerated-dryers.pdf
Size
4 MB
Format
application/pdf
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R6 VDR 2600-5050 (Aircooled) Flow Diagram

R6 VDR 2600-5050 (Aircooled) - Flow Diagram

Filename
R6-VDR-2600-5050-aircooled-flow-diagram-variable-speed-refrigerated-dryer.pdf
Size
143 KB
Format
application/pdf
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R6 VDR 2600-5050 (watercooled) Flow Diagram

R6 VDR 2600-5050 (Watercooled) - Flow Diagram

Filename
R6-VDR-2600-5050-watercooled-flow-diagram-variable-speed-refrigerated-dryer.pdf
Size
141 KB
Format
application/pdf
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R6 VDR 6350 (Aircooled) Flow Diagram

R6 VDR 6350 (Aircooled) - Flow Diagram

Filename
R6-VDR-6350-aircooled-flow-diagram-variable-speed-refrigerated-dryer.pdf
Size
161 KB
Format
application/pdf
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R6 VDR 6350 (watercooled) Flow Diagram

R6 VDR 6350 (Watercooled) - Flow Diagram

Filename
R6-VDR-6350-watercooled-flow-diagram-variable-speed-refrigerated-dryer.pdf
Size
149 KB
Format
application/pdf
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R6 VDR 8450 (Aircooled) Flow Diagram

R6 VDR 8450 (Aircooled) - Flow Diagram

Filename
R6-VDR-8450-aircooled-flow-diagram-variable-speed-refrigerated-dryer.pdf
Size
167 KB
Format
application/pdf
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R6 VDR 8450 (watercooled) Flow Diagram

R6 VDR 8450 (Watercooled) - Flow Diagram

Filename
R6-VDR-8450-watercooled-flow-diagram-variable-speed-refrigerated-dryer.pdf
Size
160 KB
Format
application/pdf
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Features

These models can reduce power consumption up to 80% vs non-cycling dryers

Each unit maintains a constant dewpoint even as the compressed air flow rate fluctuates

 Uses Zero ozone depletion and low CO2 emissions refrigerant

Specifications of our models

Dryer Model

Inlet & Outlet

Rated Flow (1)

Pressure Drop

Absorbed Power (2)

flg

scfm

Nm3/h

mbar

kW

Aircooled

VDR 2600 A

6”

2600

4417

180

9.9

VDR 3150 A

6”

3150

5352

180

10.5

VDR 3700 A

6”

3700

6286

150

11.3

VDR 4200 A

6”

4200

7136

190

14.2

VDR 5050 A

6”

5050

8580

270

19.1

VDR 6350 A

8”

6350

10789

190

23.9

VDR 8450 A

8”

8450

14357

190

28.1

Watercooled

VDR 2600 W

6”

2600

4417

180

6.1

VDR 3150 W

6”

3150

5352

180

6.6

VDR 3700 W

6”

3700

6286

150

7.5

VDR 4200 W

6”

4200

7136

190

8.3

VDR 5050 W

6”

5050

8580

270

12.8

VDR 6350 W

8”

6350

10789

190

14.4

VDR 8450 W

8”

8450

14357

190

19.7

Specifications

Design operating pressure range

4 to 14 barg

Maximum inlet temperature 

70°C

Design ambient temperature

7 to 46°C

(1) in compliance with ADF 100 specifications for compressed air dryers; inlet temperature: 38°C, ambient temperature: 38°C, inlet pressure: 7 barg, pressure dew point 0.5°C to 3.8°C. For all other conditions, refer to the correction factors above or contact us

(2) nominal absorbed power at rated operating conditions using 400/3/50 power supply (as applicable). For absorbed power at other voltages or conditions, contact us

(3) X = flange standoff distance - see drawings for specific flange positions

(4) to be used as a rough guide only. All applications should be confirmed by nano sizing software. Contact us for sizing assistance

(5) refrigerant R410a

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