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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Beskrivning Pris 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-artikelnummer 825-7771
Tillv. art.nrR2S175-AB56-30
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230 V ac Centrifugal AC 440m³/h R2S175 - 175mm 69mm 175 (Dia.) x 69 Dmm 2350rpm 61dB(A) Ball - -
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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-artikelnummer 825-7730
Tillv. art.nrR2E250-AW50-05
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230 V ac Centrifugal AC 1780m³/h R2E250 - 250mm 141mm 250 (Dia.) x 141 Dmm 2650rpm 72dB(A) Ball - -
RS-artikelnummer 813-597
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12 V dc Blower DC 9.5L/s U97EM 136mm 98mm 105mm 98 x 136 x 105mm 11300rpm 62dB(A) Ball - -
RS-artikelnummer 825-7765
Tillv. art.nrR2S133-AE17-22
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968,44 kr
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230 V ac Centrifugal AC 320m³/h R2S133 - 133mm 91mm 133 (Dia.) x 91 Dmm 3200rpm 58dB(A) Ball - -
RS-artikelnummer 243-6417
Tillv. art.nrQG030-198/14
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1 075,40 kr
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24 V dc Tangential DC 100m³/h QG030 47.5mm 258mm 50mm 47.5 x 258 x 50mm 4250rpm 51dB Ball - Electronic
RS-artikelnummer 825-7683
Tillv. art.nrR2E220-AB06-05
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230 V ac Centrifugal AC 900 m³/h, 990 m³/h R2E220 - 220mm 71mm 220 (Dia.) x 71 Dmm 2700 rpm, 3050 rpm 74 dB(A), 75 dB(A) Ball - -
RS-artikelnummer 175-7072
Tillv. art.nrQG030-303/14
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964,32 kr
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24 V dc Tangential DC 139.4m³/h QG030 47.5mm 363mm 50mm 47.5 x 363 x 50mm 3900rpm 51dB Ball - Electronic
RS-artikelnummer 825-7642
Tillv. art.nrR2E180-AH05-15
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230 V ac Centrifugal AC - R2E180 - 180mm - - - - Ball - -
RS-artikelnummer 892-2078
Tillv. art.nrSE2B21 (081901)
VarumärkeAmetek
5 622,62 kr
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110 V ac, 115 V ac Regenerative SPA AC 5.8m³/h Minispiral 105.66mm 104.4mm 45.72mm 104.4 x 105.66 x 45.72mm 2850 rpm, 3400 rpm - Ball - -
RS-artikelnummer 825-7692
Tillv. art.nrR2E220-AB06-40
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2 076,11 kr
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230 V ac Centrifugal AC 900 m³/h, 990 m³/h R2E220 - 220mm 71mm 220 (Dia.) x 71 Dmm 2700 rpm, 3050 rpm 74 dB(A), 75 dB(A) Ball - -
RS-artikelnummer 243-6423
Tillv. art.nrQG030-303/12
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1 237,92 kr
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12 V dc Tangential DC 139.4m³/h QG030 47.5mm 363mm 50mm 47.5 x 363 x 50mm 3900rpm 51dB Ball - Electronic
RS-artikelnummer 243-6401
Tillv. art.nrQG030-198/12
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12 V dc Tangential DC 100m³/h QG030 47.5mm 258mm 50mm 47.5 x 258 x 50mm 4250rpm 51dB Ball - Electronic
RS-artikelnummer 826-1152
Tillv. art.nrD4E180-CA02-36
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230 V Centrifugal AC - D4E 180 - - - - - - - - -
RS-artikelnummer 892-2065
Tillv. art.nrNC33A3G/037792
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230 V ac Regenerative SPA AC 901.26m³/h Nautilair 273mm 184mm 306mm 184 x 273 x 306mm 2900 rpm, 3500 rpm - Ball 120.7 x 108mm -
RS-artikelnummer 825-7875
Tillv. art.nrRER175-42/18/2TDPU
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18 V dc Centrifugal DC 980m³/h RER175 - 175mm 69mm 175 (Dia.) x 69 Dmm 5400rpm 85dB Ball - -
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200 → 277 V ac EC Dual Inlet AC - G3G 262mm 227mm 130mm 262 x 227 x 130mm 2150rpm - Ball 105 x 115mm Electronic
RS-artikelnummer 250-943
Tillv. art.nrRLF35-8/12N
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12 V dc Centrifugal DC 9.6m³/h RLF35 51mm 51mm 15mm 51 x 51 x 15mm 6700rpm 55dB Ball 43 x 38mm Electronic
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Tillv. art.nrRL90-18/12N
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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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Tillv. art.nrG3G120-BB13-02
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115 V ac Centrifugal AC - G3G120 190mm 178mm 115mm 190 x 178 x 115mm 2320rpm - Ball 68 x 100mm Electronic
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