Turboflow TF500 Contra Rotating Axial Flow Fan Single Phase AC 500mm

The Elta Turboflow TF500/4-1AC is a 500mm two stage contra-rotating axial flow fan for higher pressure duct systems. It moves up to 8222 m³/h in free air and the Elta datasheet shows it still delivering 5450 m³/h at 300 Pa, all inside a compact cased unit.Both motors are airstream rated single phase induction motors with sealed for life bearings, wired through a weatherproofed cable to an IP55 terminal box on the outside of the casing. The casing is heavy gauge steel, hot dip galvanised, it suits internal or external installation and carries a 12 month Elta warranty. 1 Phase AC Motor Up to 8222 m³/h Speed Controllable What it is best used forA step up for 500mm ductwork in sports centres, gymnasiums, commercial kitchens with longer duct runs, warehousing and stores. It holds about 6541 m³/h at 200 Pa, so it suits systems where a single stage cased axial of the same size would stall.It is not suitable for corrosive or explosive atmospheres, and at 64 dB(A) inlet at 3m it is not a quiet fan, so noise sensitive areas will need Elta flanged silencers. If speed control is needed in an ambient above 50°C, run it at fixed speed or look at a three phase model.Why choose this over alternativesTwo contra-rotating impellers in series let the TF500 develop far more pressure than a single stage cased axial of the same 500mm diameter, without moving up to a bulkier centrifugal box. The impellers are adjustable pitch aerofoils in pressure die cast aluminium, and Elta quote around 7% better efficiency from the increased blade chord and twist.Need more air? The Elta TF560 moves up to 10577 m³/h (about 8842 m³/h at 200 Pa) on 560mm ductwork. Three phase versions of the Turboflow range are also made, so ask us if a three phase supply is available.Installation notes The fan can be mounted at any angle. Make sure it is adequately supported and leave easy access to the casing and the IP55 terminal box for maintenance. Wire to Elta diagram 152-502. For speed control the link between U1 and Z2 is removed and the controller wired in. Fit a means of electrical isolation, and Elta recommend a starter with overload protection. Locate the discharge so exhaust air cannot be drawn back through the open flue of a gas or other fuel burning appliance. At first start up check that both impellers turn the right way, the airflow direction is correct and the current does not exceed the nameplate rating. Inspect and clean the motor, blades and guards at least once every 12 months. Bearings are sealed for life. You'll also need Elta matching flanges 500mm (061B-0500) for bolting the fan to flanged ductwork, sold each. Elta 149-TC110 transformer speed controller the controller Elta list for this fan, available to order, ask us. Elta flexible connector 063-0500-MAN150 and AV mounts 062-003 to stop vibration reaching the ductwork, available to order, ask us. Elta ancillary pack APK500SI/003 (flexible connections, matching flanges, AV mounts and mounting feet) available to order, ask us. Browse more cased axial fans, axial fans or Elta fans, or call us for help choosing the right fan.Specifications Model TF500/4-1AC Type Two stage contra-rotating axial flow fan Diameter 500mm Max airflow 8222 m³/h Static pressure 300 Pa Motor Single phase AC, 220-240V, 4 pole, 1465 rpm Power 0.88 kW (3.94 A) Noise 64 dB(A) inlet, 64 dB(A) outlet at 3m Terminal box IP55, mounted on the casing Warranty 1 Year Manufacturer Airflow at 200 Pa 6541 m³/h Airflow at 300 Pa 5450 m³/h Operating temperature -20°C to +70°C fixed speed, up to +50°C speed controlled Impellers Adjustable pitch aerofoil, pressure die cast aluminium Casing Heavy gauge steel, hot dip galvanised Overall length 550mm Weight 85 kg Efficiency at best point 56.7% (FMEG 63) Speed controller 149-TC110 Wiring diagram 152-502 Manuals & Guides Elta Turboflow TF Datasheet Elta Turboflow TF Installation Manual