Axial fans

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Effects of overlapping dimension The axial overlap between the inlet nozzle and impeller cover plate influences the air performance and efficiency of a centrifugal fan. Curve [Pa] 1 [%] X 1 2 3 x / D = 0.6 % x / D = 0 % x / D = -0.8 % 3 3 1 2 2 0 0 [m³/h] Effects of installation space When mounting our product in a rectangular box, air performance might be reduced. 0,96 0,97 1,00 D Curve 0,99 B 0,98 0,5xD D H d h = Hydraulic diameter Formula: d h = 2 x B x H / (B + H) B = Width of box H = Height of box D = Outer diameter of the fan D Correction factor for air flow 0,92 0,93 0,94 0,95 1,4 1,6 1,8 2,0 2,2 2,4 2,6 2,8 Hydraulic diameter d h/D 402
AC axial A series Q-motor ESM EC-SYSTEMS Technology Accessories EC axial S series EC axial <strong>fans</strong> AC axial K series AC axial S series AC axial <strong>fans</strong> General information Air flow measurement for inlet nozzles with pressure-measuring point The differential pressure approach compares the static pressure before the inlet nozzle with the static pressure inside the inlet nozzle. D 0,5xD Air flow can be calculated on the basis of the differential pressure (difference in pressure of the static pressures) in keeping with the following equation: V = k . Δp W V in [m 3 /h] and Δp W in [Pa] If constant air flow control is used, then the nozzle pressure has to be kept constant: Δp W = V 2 :k 2 k takes into account the specific nozzle characteristics. One or four pressure measuring points are spaced along the circumference of the inlet nozzle. Connection on the customer side is accomplished via a premounted T tube connector. This tube connector is suited for pneumatic hoses with an internal diameter of 4 mm. 403 Contacts
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Axial fans version 07 The engineer
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AC axial K series AC axial S series
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How to order your ebm-papst product
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Interface converter RS232 - RS485 G
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