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 dont rust.


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Description Price For Use With Inner Diameter Outer Diameter Depth
RS庫存編號 826-0966
製造零件編號96358-2-4013
Brandebm-papst
HK$175.71
單位
Backward Curved Centrifugal Fan, Ebm-papst Impeller 225 146mm 223mm 28mm
RS庫存編號 826-0711
製造零件編號51357-2-4013
Brandebm-papst
HK$325.24
單位
Backward Curved Centrifugal Fan 325mm 330/355mm -
RS庫存編號 175-7151
製造零件編號U97XX-009C3
BrandMicronel
HK$177.93
單位
U97EM series fans 34mm 37mm -
RS庫存編號 826-0963
製造零件編號9621-2-4013
Brandebm-papst
HK$302.47
單位
Ebm-papst Motorized Impeller 310 193mm 300mm 43mm
RS庫存編號 826-0960
製造零件編號96359-2-4013
Brandebm-papst
HK$267.41
單位
Backward Curved Centrifugal Fan, Ebm-papst Impeller 250 164.5mm 255mm 31mm
RS庫存編號 826-0948
製造零件編號9576-2-4013
Brandebm-papst
HK$121.61
單位
Backward Curved Centrifugal Fan, Ebm-papst Impeller 175/190 125.5mm 170mm 14mm
RS庫存編號 860-0260
製造零件編號31050-2-4013
Brandebm-papst
HK$348.326
/個 (每包:5個)
單位
Ebm-papst R4D310-AR 208.1mm 300mm 48mm
RS庫存編號 826-0979
製造零件編號96360-2-4013
Brandebm-papst
HK$365.47
單位
Backward Curved Centrifugal Fan, Ebm-papst Impeller 270/280 182.5mm 280mm 35mm
RS庫存編號 175-7145
製造零件編號U97XX-500A9
BrandMicronel
HK$181.84
單位
U97EM series fans 34mm 37mm -
RS庫存編號 825-6365
製造零件編號31051-2-4013
Brandebm-papst
HK$240.62
單位
Backward Curved Centrifugal Fan 280mm 310mm -
RS庫存編號 826-0957
製造零件編號9588-2-4013
Brandebm-papst
HK$108.92
單位
Ebm-papst Impeller 160, Forward Curved Centrifugal Fan 130mm 185mm 17mm
RS庫存編號 826-0944
製造零件編號9566-2-4013
Brandebm-papst
HK$75.36
單位
Backward Curved Centrifugal Fan, Ebm-papst Impeller 133 87mm 129mm 13mm
RS庫存編號 826-0720
製造零件編號54478-2-4013
Brandebm-papst
HK$511.28
單位
Backward Curved Centrifugal Fan 390mm 450mm -
RS庫存編號 826-0954
製造零件編號9609-2-4013
Brandebm-papst
HK$209.56
單位
Backward Curved Centrifugal Fan, Ebm-papst Impeller 220 155mm 252mm 21mm
RS庫存編號 825-6416
製造零件編號40075-2-4013
Brandebm-papst
HK$879.34
單位
Airflow Measurement - 400mm -
RS庫存編號 826-0950
製造零件編號9597-2-4013
Brandebm-papst
HK$167.37
單位
Ebm-papst Impeller 180, Forward Curved Centrifugal Fan 149mm 210mm 28mm