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Axial fans

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TechnologyAC axialS seriesAC axial <strong>fans</strong>GeneralinformationCentrifugal <strong>fans</strong> with backward curved bladesAC axialK seriesOperating rangeMiddle part of air performance curve:– Maximum efficiency– Minimal noiseTo the right and the left of the middle part of the air performance curve:– Reduced efficiency– Increasing noiseThe optimum operating range of the fan is shaded in green in the curvegiven here.Noise / efficiency curve0[Pa][%][dB(A)]AC axialA seriesEC axial <strong>fans</strong>optimum operating rangeEC axialS series0[m³/h]Effects of nozzle gap dimensionThe centrifugal air gap between the inlet nozzle and impeller cover plateinfluences the air performance and efficiency of the centrifugal fan.Curve[Pa][%]Q-motor1s / D = 0.4 %ESM2s / D = 1.0 %S3s / D = 1.4 %3 2 1EC-SYSTEMSD003 2 1[m³/h]Accessories401Contacts

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