EC/AC centrifugal fans RadiCal

Inlet nozzles with measuring deviceWith piezometer ring- Material: galvanised sheet steelInlet nozzles with measuring device to determine air flow for backward curved centrifugal fansPart no.Sizek-valueDimensions96400-2-401325060see corresponding product page28003-2-401328077see corresponding product page31003-2-401331093see corresponding product page35503-2-4013355128see corresponding product page54501-2-4013400180see corresponding product page45910-2-2943 *450190see corresponding product page50920-2-2943 *500260see corresponding product page54492-2-4013560405see corresponding product page63310-2-4013630515see corresponding product pagesubject to alterations* Material: Plastic ABSAir flow determinationThe differential pressure approach compares the static pressure before theinlet nozzle with the static pressure inside the inlet nozzle. Air flow can becalculated on the basis of the differential pressure (difference in pressure ofthe static pressures) in keeping with the following equation:D0,5xDq V = k . Δpq V in [m 3 /h] und Δp in [Pa]If constant air flow is to be controlled to, then the nozzle pressure has to bekept constant:Δp = q V2: k 2Δpk takes into account the specific nozzle characteristics.Differences in static pressure are measured in 1/4 measuring point(s) alongthe circumference of the inlet nozzle. Connection on the customer side isacomplished via a pre-mounted T tube connector. This tube connector issuited for pneumatic hoses with an internal diameter of 4 mm.159