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. 841-4918
Mfr. Part No.G3G160-AC50-01
Brandebm-papst
kr 6 319,16
Each
Units
200 → 277 V ac EC Dual Inlet AC - G3G 262mm 227mm 130mm 262 x 227 x 130mm 2150rpm - Ball 105 x 115mm Electronic
RS Stock No. 250-987
Mfr. Part No.RLF100-11/14
Brandebm-papst
kr 679,04
Each
Units
24 V dc Centrifugal DC 64m³/h RLF100 127mm 127mm 25.4mm 127 x 127 x 25.4mm 5100rpm 64dB Ball 112 x 94.4mm Electronic
RS Stock No. 876-5162
Mfr. Part No.D3G133-BF05-14
Brandebm-papst
kr 1 901,18
Each
Units
- Centrifugal - - D3G133 - - - - - - Ball - -
RS Stock No. 860-0245
Mfr. Part No.R2E220-RA38-13
Brandebm-papst
kr 1 236,60
Each (In a Pack of 5)
Units
230 V Centrifugal AC - R2E220 - - - - - - Ball - -
RS Stock No. 825-7718
Mfr. Part No.R2E225-BD92-37
Brandebm-papst
kr 2 864,86
Each
Units
230 V ac Centrifugal AC 1340m³/h R2E225 - 225mm 99mm 225 (Dia.) x 99 Dmm 2950rpm 71dB(A) Ball - -
RS Stock No. 825-7894
Mfr. Part No.RG125-19/18N
Brandebm-papst
kr 904,08
Each
Units
48 V dc Centrifugal DC 87.5m³/h RG125 180mm 180mm 40mm 180 x 180 x 40mm 2550rpm 58dB Ball 165 x 165mm -
RS Stock No. 434-9826
Mfr. Part No.QLK45/1800A118-2518L-73RH
Brandebm-papst
kr 759,06
Each
Units
230 V ac Tangential AC 125m³/h QLK 79mm 265mm 71mm 79 x 265 x 71mm 2200rpm - - - -
RS Stock No. 787-8964
Mfr. Part No.FW1275-A1041C2AL
BrandARX
kr 148,07
Each
Units
12 V dc Blower DC 16.58m³/h CeraDyna 75mm 75mm 15mm 75 x 75 x 15mm 4500rpm 51.3dB(A) Sleeve 80.8mm -
RS Stock No. 826-1102
Mfr. Part No.D1G133-AB29-14
Brandebm-papst
kr 7 212,64
Each
Units
24 V dc Centrifugal DC - D1G 133 - - - - 1780rpm - - - -
RS Stock No. 825-7908
Mfr. Part No.RL65-21/12/2
Brandebm-papst
kr 629,01
Each
Units
12 V dc Centrifugal DC 56m³/h RL65 93.5mm 97mm 33mm 93.5 x 97 x 33mm 4500rpm 66dB Ball 71 x 71mm -
RS Stock No. 825-7816
Mfr. Part No.R4E310-AE13-16
Brandebm-papst
kr 2 952,91
Each
Units
115 V ac Centrifugal AC 2380m³/h R4E310 - 310mm - - 1650rpm 66dB(A) Ball - -
RS Stock No. 892-1753
Mfr. Part No.DR505AS72M/037543
BrandAmetek
kr 23 059,01
Each
Units
230 V ac, 460 V ac Regenerative AC 250.35m³/h DR505 366.5mm 345.2mm 374mm 345.2 x 366.5 x 374mm - - Ball - -
RS Stock No. 126-391
Mfr. Part No.PMB1275PNB1-AY(2).GN
BrandSunon
kr 198,20
Each
Units
12 V dc Blower DC 13.6cfm PMB 75.7mm 75.7mm 30mm 75.7 x 75.7 x 30mm 3400rpm 43.5dB(A) Ball 67.1 x 45.7mm Brushless
RS Stock No. 175-7072
Mfr. Part No.QG030-303/14
Brandebm-papst
kr 968,81
Each
Units
24 V dc Tangential DC 139.4m³/h QG030 47.5mm 363mm 50mm 47.5 x 363 x 50mm 3900rpm 51dB Ball - Electronic
RS Stock No. 826-1133
Mfr. Part No.D2E146-CD51-23
Brandebm-papst
kr 4 467,58
Each
Units
230 V Centrifugal AC - D2E 146 - - - - - - - - -
RS Stock No. 826-1317
Mfr. Part No.K3G097-AK34-43
Brandebm-papst
kr 3 726,58
Each
Units
26 V Centrifugal DC - K3G 097 - - - - - - - - -
RS Stock No. 332-5706
Mfr. Part No.QLZ06/2400A47 -3020LH-25ZX
Brandebm-papst
kr 705,82
Each
Units
230 V ac Tangential AC 120m³/h QLZ 96mm 317mm 83mm 96 x 317 x 83mm 1100rpm 33dB Sleeve - -
RS Stock No. 825-7645
Mfr. Part No.R2E180-AS77-22
Brandebm-papst
kr 1 947,44
Each
Units
- Centrifugal AC - R2E180 - 180mm - - - - Ball - -
RS Stock No. 860-0210
Mfr. Part No.R2E225-AC01-13
Brandebm-papst
kr 2 089,15
Each
Units
230 V Centrifugal AC - R2E225 - - - - - - Ball - -
RS Stock No. 263-7834
Mfr. Part No.RL90-18/12N
Brandebm-papst
kr 399,97
Each
Units
12 V dc Centrifugal DC 40m³/h RL90 120.6mm 120.6mm 37.3mm 120.6 x 120.6 x 37.3mm 2500rpm 58dB Ball 104.8 x 100.8mm Electronic
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