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. 787-4013
BrandRS PRO
£21.56
Each
Units
24 V dc Blower DC 16.99m³/h ODB7530 75mm 75mm 30mm 75 x 75 x 30mm 3000rpm 38dB Ball - -
RS Stock No. 787-4029
BrandRS PRO
£27.77
Each
Units
24 V dc Blower DC 59.47m³/h ODB600PT 120mm 120mm 32mm 120 x 120 x 32mm 3000rpm 49dB Ball 104.8 x 96.1 mm, 79.1 x 100.8 mm -
RS Stock No. 787-4025
BrandRS PRO
£27.77
Each
Units
12 V dc Blower DC 59.47m³/h ODB600PT 120mm 120mm 32mm 120 x 120 x 32mm 3000rpm 49dB Ball 104.8 x 96.1 mm, 79.1 x 100.8 mm -
RS Stock No. 787-4022
BrandRS PRO
£12.16
Each
Units
24 V dc Blower DC 56.07m³/h ODB9733 96mm 96mm 33mm 96 x 96 x 33mm 4000rpm 56dB Ball - -
RS Stock No. 144-4137
BrandRS PRO
£13.04
Each
Units
12 V dc Blower DC 7.45cfm - - 60mm 15.2mm - 5000rpm 44dB Ball 44.64 x 50.63mm Brushless
RS Stock No. 144-4136
BrandRS PRO
£13.69
Each
Units
12 V dc Blower DC 4.2cfm - - 51.11mm 15mm - 5500rpm 38dB Ball 43 x 38mm Brushless
RS Stock No. 144-4135
BrandRS PRO
£13.69
Each
Units
12 V dc Blower DC 2.4cfm - - 51.11mm 15mm - 3500rpm 32dB Ball 43 x 38mm Brushless
RS Stock No. 250-864
Mfr. Part No.RV40-18/12H
Brandebm-papst
£36.33
Each
Units
12 V dc Centrifugal DC 24m³/h RV40 77.3mm 102.44mm 58.8mm 77.3 x 102.44 x 58.85mm 4800rpm 50dB Ball - Electronic
RS Stock No. 218-3208
Mfr. Part No.G2E120-AR77-01
Brandebm-papst
£176.09
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. 498-8617
Mfr. Part No.G2E140-NS38-01
Brandebm-papst
£157.30
Each
Units
230 V ac Centrifugal AC 370m³/h G2E140 248mm 237mm 100mm 248 x 237 x 100mm 1700rpm 59dB Ball - -
RS Stock No. 332-4107
Mfr. Part No.G2E120-AR77-A6
Brandebm-papst
£154.00
Each
Units
230 V ac Centrifugal AC 255m³/h G2E120 184mm 178mm 115mm 184 x 178 x 115mm 2350rpm 61dB Ball 68 x 100mm -
RS Stock No. 825-7756
Mfr. Part No.R2E280-AE52-05
Brandebm-papst
£326.44
Each
Units
230 V ac Centrifugal AC 2110m³/h R2E280 - 280mm 125mm 280 (Dia.) x 125 Dmm 2700rpm 76dB(A) Ball - -
RS Stock No. 278-1565
Mfr. Part No.R2K150-AC01-15
Brandebm-papst
£54.43
Each
Units
230 V ac Hot Gas AC 200m³/h R2K - 152mm 98.5mm - 2000rpm - Ball - -
RS Stock No. 876-5162
Mfr. Part No.D3G133-BF05-14
Brandebm-papst
£143.17
Each
Units
- Centrifugal - - D3G133 - - - - - - Ball - -
RS Stock No. 332-4078
Mfr. Part No.D2E097-BI56-50
Brandebm-papst
£154.00
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. 126-414
Mfr. Part No.GB1205PKV1-8AY.GN
BrandSunon
£14.50
Each
Units
12 V dc Blower DC 9.7m³/h GB 50mm 50mm 20mm 50 x 50 x 20mm 5200rpm 35dB Vapo - Electronic
RS Stock No. 773-4422
Mfr. Part No.D2E146-HR93-A1
Brandebm-papst
£187.23
Each
Units
230 V ac Centrifugal AC 430m³/h D2E 146 - - - 216 x 220 x 195mm 1630rpm 65dB(A) Ball 138 x 110mm -
RS Stock No. 126-420
Mfr. Part No.PMB1297PYB1-AY(2).GN
BrandSunon
£24.62
Each
Units
12 V dc Blower DC 52m³/h PMB 97.2mm 94.4mm 33mm 97.2 x 94.4 x 33mm 3600rpm 55.8dB Ball - Electronic
RS Stock No. 841-4911
Mfr. Part No.R2E190-RA26-05
Brandebm-papst
£73.74
Each
Units
230 V ac Centrifugal AC 540m³/h RadiCal - 190 (Dia.)mm 68.5mm 190 (Dia.) x 68.5mm 2350rpm 58dB Ball - Electronic
RS Stock No. 787-8967
Mfr. Part No.FW1251-A1051C2AL
BrandARX
£8.89
Each
Units
12 V dc Blower DC 6.97m³/h CeraDyna 51mm 51mm 15mm 51 x 51 x 15mm 5500rpm 37.5dB(A) CeraDyna A 43.2 x 38.3mm Electronic
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