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
MYR110.30
Each
units
24 V dc Blower DC 10cfm - 75mm 75mm 30mm 75 x 75 x 30mm 3000rpm 38dB(A) Ball - Brushless
RS Stock No. 787-4022
BrandRS PRO
MYR120.62
Each
units
24 V dc Blower DC 33cfm - 95.87mm - 33mm - 4000rpm 56dB(A) Ball - Brushless
RS Stock No. 787-4029
BrandRS PRO
MYR108.59
Each
units
24 V dc Blower DC 30cfm - 120mm 120mm 31mm 120 x 120 x 31mm 3000rpm 49dB(A) Ball - Brushless
RS Stock No. 787-4025
BrandRS PRO
MYR108.59
Each
units
12 V dc Blower DC 30cfm - 120mm 120mm 31mm 120 x 120 x 31mm 2700rpm 49dB(A) Ball - Brushless
RS Stock No. 144-4137
BrandRS PRO
MYR51.05
Each
units
12 V dc Blower DC 7.45cfm - - - 15.2mm - 5000rpm 44dB(A) Ball - Brushless
RS Stock No. 144-4136
BrandRS PRO
MYR52.92
Each
units
12 V dc Blower DC 4.2cfm - - 51.11mm 15mm - 5500rpm 38dB(A) Ball - Brushless
RS Stock No. 144-4135
BrandRS PRO
MYR52.92
Each
units
12 V dc Blower DC 2.4cfm - - 51.11mm 15mm - 3500rpm 32dB(A) Ball - Brushless
RS Stock No. 278-1565
Mfr. Part No.R2K150-AC01-15
Brandebm-papst
MYR408.46
Each
units
230 V ac Hot Gas AC 200m³/h R2K - 152mm 98.5mm - 2000rpm - Ball - -
RS Stock No. 243-6439
Mfr. Part No.G2G085-AB04-10
Brandebm-papst
MYR1,017.43
Each
units
12 V dc Centrifugal DC 80m³/h G2G085 117mm 127mm 76mm 117 x 127 x 76mm 2300rpm 52dB Ball 58 x 66mm Electronic
RS Stock No. 217-4204
Mfr. Part No.R2E220-AA40-05
Brandebm-papst
MYR562.83
Each
units
230 V ac Centrifugal AC 865m³/h R2E220 - 220mm 71mm - 2600rpm 73dB Ball - -
RS Stock No. 250-864
Mfr. Part No.RV40-18/12H
Brandebm-papst
MYR186.93
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. 217-4210
Mfr. Part No.R2E225-AT51-05
Brandebm-papst
MYR929.33
Each
units
230 V ac Centrifugal AC 825m³/h R2E225 - 225mm 69mm - 2650rpm 70dB Ball - -
RS Stock No. 830-3029
Mfr. Part No.R2E225-RA92-09
Brandebm-papst
MYR609.30
Each
units
230 V ac Centrifugal AC 1195m³/h R2E225 - 225 (Dia.)mm 99mm 225 (Dia.) x 99mm 2500rpm - Ball - -
RS Stock No. 217-4181
Mfr. Part No.R2E133-BH66-05
Brandebm-papst
MYR574.38
Each
units
230 V ac Centrifugal AC 290m³/h R2E - 133mm 91mm - 2800rpm 56dB Ball - -
RS Stock No. 830-3032
Mfr. Part No.R3G220-RC05-03
Brandebm-papst
MYR1,320.45
Each
units
230 V ac Centrifugal AC 1015m³/h RadiCal - 220 (Dia.)mm 71mm 220 (Dia.) x 71mm 2580rpm - Ball - Electronic
RS Stock No. 825-7661
Mfr. Part No.R2E220-AA40-71
Brandebm-papst
MYR684.26
Each
units
230 V ac Centrifugal AC - R2E220 - 221.4mm 71mm 221.4 (Dia.) x 71 Dmm 2700rpm >70dB(A) Ball - -
RS Stock No. 250-858
Mfr. Part No.RLF35-8/14N
Brandebm-papst
MYR128.09
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. 813-547
Mfr. Part No.RG125-19/56
Brandebm-papst
MYR306.04
Each
units
230 V ac Centrifugal AC 86m³/h RG125 180mm 180mm 40mm 180 x 180 x 40mm 2550rpm 58dB Ball 165 x 165mm -
RS Stock No. 920-9196
Mfr. Part No.RER175-42/18/2TDMP
Brandebm-papst
MYR556.15
Each
units
48 V dc Centrifugal DC 865m³/h RER175 - 175 (Dia.)mm 69mm 175 (Dia.) 69mm 4800rpm - Ball - -
RS Stock No. 841-4886
Mfr. Part No.D2E146-HT59-02
Brandebm-papst
MYR948.51
Each
units
230 V Centrifugal AC 910m³/h D2E 146 216mm 220mm 199mm 216 x 220 x 199mm 1600rpm - Ball 138 x 110mm Electronic
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