Series RA Refrigerant Air Dryers - Boge

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Drypoint RA Refrigerant Air Dryers

Series RA Refrigerant Air Dryers

Flow Capacity: 800 - 4,000 cfm
Max. Operating Pressure: 200 psig

The most efficient method of drying compressed air

When compressed air is cooled near to freezing point, water and oil vapors create condensate. This method of drying is expensive to the end user as it uses energy and creates pressure losses.

Thanks to its energy saving components, the RA series is capable of substantially reducing such costs over the entire lifetime of the compressed air system by combining savings potentials with maximum reliability.

Features

  • Reliable pressure dewpoint
    the RA series with a built-in Varioflow hot gas bypass valve, provides users with a 100% stable dew point requiring no maintenance and zero freeze-ups
  • Intelligent design
    the specially designed aluminium heat exchanger represents an innovative vertical profile concept that allows the force of gravity to result in high droplet separation and self-cleaning
  • Low pressure differential
    due to the downward path through the aluminium heat exchanger the RA series has extremely low pressure differentials. As a result, the generation pressure upstream of the compressor can be optimized
  • Environmentally friendly coolant
    the R134a refrigerant does not have any ozone depleting characteristics. That, in conjunction with the use of recyclable materials and the built-in energy efficiency provides a truly environmentally friendly product

THE RIGHT SOLUTION WHATEVER THE TASK
BOGE is world renowned for its innovative, solution oriented compressed air technology. Geared to the customers’ needs, BOGE presents a comprehensive product portfolio, covering air treatment, condensate technology and process engineering.

INTEGRATED BEKOMAT DRAIN
Reliable condensate discharge and maximum energy savings.

RELIABLE PRESSURE DEW POINT
Thanks to their generously designed components, refrigerant dryers in the BOGE RA series maintain a constant pressure dew point. This ensures consistently high compressed air quality with a low pressure differential. All RA dryers are equipped with a pressure dew point indicator.

MINIMAL PRESSURE LOSS
All RA dryers are characterized by their extremely low pressure loss. This allows the upstream compressor to deliver less pressure, thus avoiding overcompensation. Energy savings of six percent are achieved for every bar of pressure saved – far higher than with other dryer systems.

MAINTENANCE FRIENDLY
The compact design and open frame provides easy access to all components.






Series RA Drypoint Refrigerant Air Dryers from Boge
Temperature - Pressure Chart for RA Seriees Refrigerant Dryers




The most efficient method of drying compressed air:
Compressed air is cooled to just above freezing point which means that water and oil aerosols contained in the air will condense. The two major cost factors involved are energy use and compensating for any pressure loss.

Series RA Refrigerant Air Dryer Parts from Boge

Click to Enlarge

Two Controller Types:

Series RA Controller Type 1

DMC 18 (RA 20 - 500)

  • Dewpoint temperature display and LCD display panel
  • Condenser fan temperature control
  • Adjustable high and low dewpoint alarm
  • Potential free alarm contacts
  • Displays services and alarms
Series RA Controller Type 2

DMC 24 (RA 600 to 5000)

  • Includes all of the above plus:
  • Fully programmable from the front panel
  • Complete LED status indication
  • Working hours metering
  • Advanced service warning function
  • Advanced alarm management function
  • PC or control system connectivity

ENVIRONMENTALLY FRIENDLY COOLANT
The R134a and the R407C coolant used is ozone neutral and, in conjunction with the recyclable materials and the high energy efficiency, ensures maximum conservation of resources and modern and environmentally compatible refrigerant dryer operation.

Model Flow Rate Pressure Drop Connection Size Standard Voltage Required Pre-Filter Dimensions (in) Weight
scfm psid W D H lbs
RA 20 20 0.44 ½” NPT-F 115V / 1Ph FF30 14 17 29 62
RA 30 30 1.16 ½” NPT-F 115V / 1Ph FF30 14 17 29 64
RA 50 50 1.60 ½” NPT-F 115V / 1Ph FF50 14 17 29 75
RA 75 75 1.89 1” NPT-F 115V / 1Ph FF80 14 17 29 79
RA 100 100 2.47 1 ¼” NPT-F 115V / 1Ph FF100 19 18 32 82
RA 125 125 2.18 1 ¼” NPT-F 115V / 1Ph FF125 19 18 32 101
RA 150 150 2.90 1 ¼” NPT-F 115V / 1Ph FF160 19 18 32 110
RA 200 200 2.18 1 ½” NPT-F 115V / 1Ph FF200 22 23 35 121
RA 250 250 2.61 1 ½” NPT-F 230V / 1Ph FF250 22 23 35 139
RA 300 300 1.31 2” NPT-F 230V / 1Ph FF500 22 25 38 203
RA 350 350 1.89 2” NPT-F 230V / 1Ph FF500 22 25 38 207
RA 400 400 1.02 2 ½” NPT-F 230V / 1Ph FF500 26 29 44 331
RA 500 500 1.89 2 ½” NPT-F 460V / 3Ph FF500 26 29 44 355
RA 600 600 2.47 3” Flange 460V / 3Ph FF600 31 39 58 529
RA 800 800 3.05 3” Flange 460V / 3Ph FF800 31 39 58 534
RA 1000 1000 2.76 3” Flange 460V / 3Ph FF1150 31 39 58 608
RA 1250 1250 3.77 3” Flange 460V / 3Ph FF1450 31 39 58 686
RA 1500 1500 3.05 4” Flange 460V / 3Ph FF1750 45 47 69 1021
RA 1750 1750 2.03 4” Flange 460V / 3Ph FF1750 45 47 69 1186
RA 2000 2000 2.90 4” Flange 460V / 3Ph FF2100 45 47 69 1190
RA 2500 2500 3.77 4” Flange 460V / 3Ph L102 45 47 69 1349
RA 3000 3000 2.90 6” Flange 460V / 3Ph L150 51 69 71 1830
RA 4000 4000 2.90 6” Flange 460V / 3Ph L156 55 87 74 2330
RA 5000 5000 3.77 8” Flange 460V / 3Ph L156 55 87 74 2650
Standard outlet pressure dew point 38 °F
Max. inlet air temperature 160 °F
Min./max. ambient temperature 34 °F / 120 °F
Max. inlet pressure
RA 20 - 50 232 psig
RA 75 - 5000 200 psig
Required Pre-filtration 1.0 μm
Recommended Post-filtration 0.01 μm
Available Dryer Options Model Sizes
230V / 1 Ph RA 200
460V / 3 Ph RA 200 - RA 400
Water Cooled RA 600 - 2500
Sea Water Cooled RA 600 - 2500
Anti-Corrosion Treatment All model sizes
Dryer By-Pass All model sizes
Series RA Functionality Diagram from Boge

Click to Enlarge

The BOGE product family of compressed air refrigeration dryers:
Provides users with several advanced features creating a balanced and efficient drying system.

Operating Pressure psig 60 80  100 120 140 160 180 200
Correction Factor 0.79 0.91 1.00 1.07 1.13 1.18 1.23 1.27
Inlet Temperature °F 90 100 110 120 130 140 150 160
Correction Factor 1.16 1.00 0.82 0.68 0.61 0.52 0.45 0.40

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