Axial fans

AC axialA seriesQ-motorESMEC-SYSTEMSTechnologyAccessoriesEC axialS seriesEC axial fansAC axialK seriesAC axialS seriesAC axial fansGeneralinformationAir flow measurement for inlet nozzleswith pressure-measuring pointThe differential pressure approach compares the static pressure beforethe inlet nozzle with the static pressure inside the inlet nozzle.D0,5xDAir flow can be calculated on the basis of the differential pressure(difference in pressure of the static pressures) in keeping with thefollowing equation:V = k . ∆p W V in [m 3 /h] and ∆p W in [Pa]If constant air flow control is used, then the nozzle pressure has to bekept constant: ∆p W = V 2 :k 2k takes into account the specific nozzle characteristics.One or four pressure measuring points are spaced along thecircumference of the inlet nozzle. Connection on the customer sideis accomplished via a premounted T tube connector. This tube connectoris suited for pneumatic hoses with an internal diameter of 4 mm.403Contacts