Fan Inlet Rings

Fan inlet rings are devices used to maximise the performance of fans, such as backward curved centrifugal fans, by guiding air into the impeller blade (the rotating part of a fan) inlet. Using a fan at peak efficiency minimises noise emitted and power consumption from the fan whilst delivering optimal performance.

What are fan inlet rings used for?

Fan inlet rings ensure smooth laminar flow (flow in parallel layers, with no disruption between the layers) of air as it enters the impeller.

How do fan inlet rings work?

Fan inlet rings are usually positioned with the ring surrounding the inlet, and slightly overlapping into the interior. This helps to reduce noise induced by turbulence, eliminate flow disturbances before air is let into the fan and keep power consumption to a minimum for maximum efficiency.

Fan inlet rings also serve the critical purpose of blocking exhaust air from re-entering the air intake. Due to the frequent exposure to atmospheric moisture, fan inlet rings are usually made of materials that don’t rust.


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Omschrijving Prijs For Use With Inner Diameter Outer Diameter Depth
RS-stocknr. 825-6365
Fabrikantnummer31051-2-4013
Fabrikantebm-papst
€ 17,27
Each
Aantal stuks
Backward Curved Centrifugal Fan 280mm 310mm -
RS-stocknr. 826-0711
Fabrikantnummer51357-2-4013
Fabrikantebm-papst
€ 22,72
Each
Aantal stuks
Backward Curved Centrifugal Fan 325mm 330/355mm -
RS-stocknr. 826-0960
Fabrikantnummer96359-2-4013
Fabrikantebm-papst
€ 29,33
Each
Aantal stuks
Backward Curved Centrifugal Fan, Ebm-papst Impeller 250 164.5mm 255mm 31mm
RS-stocknr. 175-7145
FabrikantnummerU97XX-500A9
FabrikantMicronel
€ 19,84
Each
Aantal stuks
U97EM series fans 34mm 37mm -
RS-stocknr. 826-0720
Fabrikantnummer54478-2-4013
Fabrikantebm-papst
€ 36,87
Each
Aantal stuks
Backward Curved Centrifugal Fan 390mm 450mm -
RS-stocknr. 826-0944
Fabrikantnummer9566-2-4013
Fabrikantebm-papst
€ 8,69
Each
Aantal stuks
Backward Curved Centrifugal Fan, Ebm-papst Impeller 133 87mm 129mm 13mm
RS-stocknr. 826-0948
Fabrikantnummer9576-2-4013
Fabrikantebm-papst
€ 13,74
Each
Aantal stuks
Backward Curved Centrifugal Fan, Ebm-papst Impeller 175/190 125.5mm 170mm 14mm
RS-stocknr. 826-0954
Fabrikantnummer9609-2-4013
Fabrikantebm-papst
€ 18,38
Each
Aantal stuks
Backward Curved Centrifugal Fan, Ebm-papst Impeller 220 155mm 252mm 21mm
RS-stocknr. 175-7151
FabrikantnummerU97XX-009C3
FabrikantMicronel
€ 19,00
Each
Aantal stuks
U97EM series fans 34mm 37mm -
RS-stocknr. 825-6416
Fabrikantnummer40075-2-4013
Fabrikantebm-papst
€ 95,09
Each
Aantal stuks
Airflow Measurement - 400mm -
RS-stocknr. 860-0260
Fabrikantnummer31050-2-4013
Fabrikantebm-papst
€ 24,278
Each (In a Pack of 5)
Aantal stuks
Ebm-papst R4D310-AR 208.1mm 300mm 48mm
RS-stocknr. 826-0957
Fabrikantnummer9588-2-4013
Fabrikantebm-papst
€ 9,68
Each
Aantal stuks
Ebm-papst Impeller 160, Forward Curved Centrifugal Fan 130mm 185mm 17mm
RS-stocknr. 826-0963
Fabrikantnummer9621-2-4013
Fabrikantebm-papst
€ 27,33
Each
Aantal stuks
Ebm-papst Motorized Impeller 310 193mm 300mm 43mm
RS-stocknr. 826-0950
Fabrikantnummer9597-2-4013
Fabrikantebm-papst
€ 13,24
Each
Aantal stuks
Ebm-papst Impeller 180, Forward Curved Centrifugal Fan 149mm 210mm 28mm
RS-stocknr. 826-0966
Fabrikantnummer96358-2-4013
Fabrikantebm-papst
€ 23,11
Each
Aantal stuks
Backward Curved Centrifugal Fan, Ebm-papst Impeller 225 146mm 223mm 28mm
RS-stocknr. 826-0979
Fabrikantnummer96360-2-4013
Fabrikantebm-papst
€ 25,34
Each
Aantal stuks
Backward Curved Centrifugal Fan, Ebm-papst Impeller 270/280 182.5mm 280mm 35mm