Centrifugal Fans

Centrifugal fans are also known as blowers and normally constructed as a fixed drum shape composed with a number of fan blades (impellers), the impellers rotate and blow air or gas from one place to another. Centrifugal fans are used wherever airflow is needed for aspirating, cooling, ventilating and conveying. Centrifugal fans can be single or multi-stage blowers: Single stage blowers are ideal when a uniform airflow is required, Multi-stage is more suited when a varying airflow is required at a fixed pressure.

Features and Benefits

Various IP ratings are available, including IP68, if it needs to be placed in a harsh environment. A choice of different fan speeds from 780 rpm all the up to 11500 rpm. Both backward and forward facing fan blades

Factors to consider when choosing:

  • Pressure requirements
  • Flow requirements
  • Gas consumption
  • Inlet temperature
  • Ambient Temperature
  • Operating altitude of the blower

Where are blowers used?

Blowers are widely used in all manner of everyday items, such as:

  • HVAC systems
  • Dust control
  • Pressure Blowers
  • Air Conditioners
  • Vacuum cleaners
  • Air conveyor systems

What is the difference between a centrifugal fan and an axial fan?

Axial fans are used for high flow rates and low pressures with flow rate parallel to the axis of the fan. The blades of these fans are available in different shapes such as aerofoil, sickle paddle, and various pitch. They are commonly used for cooling and ventilation.

In Centrifugal fans the airflow changes direction twice, once when it enters the fan and secondly when it leaves the fan, These fans have paddle blades forward curved blades, backward curved blades and radial blades. Centrifugal fans move air radially. The airflow created passes through a system of tubes or ducts which creates a higher pressure airflow, making them ideal for high-pressure applications such as cooling and heating systems, dust control, transporting materials and air conveyor systems.


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Description Price Supply Voltage Blower Type AC or DC Operation Air Flow Series Height Width Depth Dimensions Fan Speed Noise Level Bearing Type Mounting Hole Spacing Commutation Type
RS Stock No. 332-4078
Mfr. Part No.D2E097-BI56-50
Brandebm-papst
kr 1 447,53
Each
Units
230 V ac Centrifugal AC 435m³/h D2E 097 165mm 146mm 162mm 165 x 162 x 146mm 1950rpm 58dB Ball 88 x 168mm -
RS Stock No. 218-3191
Mfr. Part No.G2E140-AL40-01
Brandebm-papst
kr 3 277,88
Each
Units
230 V ac Centrifugal AC 385m³/h G2E140 247mm 226mm 130mm 247 x 226 x 130mm 1650rpm 63dB Ball 105 x 115mm -
RS Stock No. 825-7787
Mfr. Part No.R3G280-AF19-01
Brandebm-papst
kr 7 922,35
Each
Units
230 V ac Centrifugal AC 2020m³/h R3G280 - 280mm - - 1300 rpm, 1965 rpm, 2000 rpm, 2600 rpm 70dB(A) Ball - -
RS Stock No. 218-3208
Mfr. Part No.G2E120-AR77-01
Brandebm-papst
kr 2 030,93
Each
Units
230 V ac Centrifugal AC 260m³/h G2E120 184mm 178mm 115mm 184 x 178 x 115mm 2350rpm 61dB Ball 68 x 100mm -
RS Stock No. 825-7673
Mfr. Part No.R2E220-AA40-B8
Brandebm-papst
kr 1 735,24
Each
Units
230 V ac Centrifugal AC - R2E220 - 221.4mm 71mm 221.4 (Dia.) x 71 Dmm 2700rpm >70dB(A) Ball - -
RS Stock No. 250-943
Mfr. Part No.RLF35-8/12N
Brandebm-papst
kr 261,69
Each
Units
12 V dc Centrifugal DC 9.6m³/h RLF35 51mm 51mm 15mm 51 x 51 x 15mm 6700rpm 55dB Ball 43 x 38mm Electronic
RS Stock No. 841-4895
Mfr. Part No.D3G146-AH50-11
Brandebm-papst
kr 3 520,14
Each
Units
200 → 277 V ac Centrifugal AC 645m³/h D3G146 219mm 206mm 270mm 219 x 206 x 270mm 1700rpm - Ball 126 x 254mm Electronic
RS Stock No. 813-525
Mfr. Part No.RG90-18/56
Brandebm-papst
kr 564,46
Each
Units
230 V ac Centrifugal AC 54m³/h RG90 135mm 135mm 38mm 135 x 135 x 38mm 2200rpm 58dB Ball 122 x 122mm -
RS Stock No. 217-4210
Mfr. Part No.R2E225-AT51-05
Brandebm-papst
kr 2 195,62
Each
Units
230 V ac Centrifugal AC 825m³/h R2E225 - 225mm 69mm - 2650rpm 70dB Ball - -
RS Stock No. 825-7706
Mfr. Part No.R2E225-BD92-19
Brandebm-papst
kr 2 936,54
Each
Units
230 V ac Centrifugal AC 1340m³/h R2E225 - 225mm 99mm 225 (Dia.) x 99 Dmm 2950rpm 71dB(A) Ball - -
RS Stock No. 250-965
Mfr. Part No.RL65-21/12H
Brandebm-papst
kr 557,18
Each
Units
12 V dc Centrifugal DC 61m³/h RL65 93.5mm 97mm 33mm 93.5 x 97 x 33mm 4900rpm 66dB Ball 71 x 71mm Electronic
RS Stock No. 217-4248
Mfr. Part No.R2S133-AE17-05
Brandebm-papst
kr 1 153,21
Each
Units
230 V ac Centrifugal AC 280m³/h R2S133 - 133mm 91mm - 2780rpm 55dB Ball - -
RS Stock No. 332-5728
Mfr. Part No.QLZ06/2400A74-3030LH-170
Brandebm-papst
kr 757,86
Each
Units
230 V ac Tangential AC 170m³/h QLZ 96mm 324mm 83mm 96 x 324 x 83mm 2100rpm 47dB Sleeve - -
RS Stock No. 860-0204
Mfr. Part No.D2E133-DM47-01
Brandebm-papst
kr 2 858,88
Each
Units
230 V ac Centrifugal AC 495m³/h D2E133 213mm 204mm 270mm 213 x 204 x 270mm 2200rpm >70dB(A) Ball 126 x 254mm -
RS Stock No. 825-7594
Mfr. Part No.R1G175-AB75-24
Brandebm-papst
kr 2 047,84
Each
Units
12 V dc Centrifugal DC 565 m³/h, 695 m³/h R1G175 - 175mm - - 3100 rpm, 4000 rpm 65 dB(A), 72 dB(A) Ball - Electronic
RS Stock No. 250-858
Mfr. Part No.RLF35-8/14N
Brandebm-papst
kr 261,69
Each
Units
24 V dc Centrifugal DC 9.6m³/h RLF35 51mm 51mm 15mm 51 x 51 x 15mm 6700rpm 55dB Ball 43 x 38mm Electronic
RS Stock No. 825-7614
Mfr. Part No.R1G220-AB35-52
Brandebm-papst
kr 2 445,34
Each
Units
24 V dc Centrifugal DC 1055m³/h R1G220 - 220.9mm 71mm 220.9 (Dia.) x 71 Dmm 3150rpm 76dB(A) Ball - Electronic
RS Stock No. 514-2979
Mfr. Part No.RG130/0800-3612 010201
Brandebm-papst
kr 2 078,78
Each
Units
230 V ac Hot Gas AC 115m³/h RG130 176mm 178mm 98mm 176 x 178 x 98mm 8000rpm 55dB Ball - Electronic
RS Stock No. 126-414
Mfr. Part No.GB1205PKV1-8AY.GN
BrandSunon
kr 146,23
Each
Units
12 V dc Blower DC 5.7cfm GB 50mm 50mm 20mm 50 x 50 x 20mm 5200rpm 35dB(A) Vapo 43 x 40mm Brushless
RS Stock No. 826-1118
Mfr. Part No.D2E133-AM47-01
Brandebm-papst
kr 3 407,48
Each
Units
230 V Centrifugal AC 700m³/h D2E 133 180mm 254mm 171.5mm 180 x 254 x 171.5mm 2100rpm 59dB Ball 92 x 238mm Electronic
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