Elta Turboflow TF450 Contra Rotating Axial Flow Fan Single Phase AC - 450mm
Elta Turboflow TF450 Contra Rotating Axial Flow Fan Single Phase AC - 450mm
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Product Details
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Specifications
Product specifications
| Model | TF450/4-1AC |
| Type | Two stage contra-rotating axial flow fan |
| Diameter | 450mm |
| Max airflow | 7452 m³/h |
| Static pressure | 300 Pa |
| Motor | Single phase AC, 220-240V, 4 pole, 1465 rpm |
| Power | 0.90 kW (4.01 A) |
| Noise | 67 dB(A) inlet, 68 dB(A) outlet at 3m |
| Terminal box | IP55, mounted on the casing |
| Warranty | 1 Year Manufacturer |
Summary
See more specification See less specification
The Elta Turboflow TF450/4-1AC is a 450mm two stage contra-rotating axial flow fan for higher pressure duct systems. It moves up to 7452 m³/h in free air and the Elta datasheet shows it still delivering 4975 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 7452 m³/h
- Speed Controllable
What it is best used for
Ducted extract or supply where a 450mm duct has to work against real resistance: plant rooms and boiler rooms, changing rooms, squash courts and smaller gym halls, or a factory extract run with bends, grilles and an attenuator. At 200 Pa it still moves about 6030 m³/h.
It is not suitable for corrosive or explosive atmospheres, and at 67 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 alternatives
Two contra-rotating impellers in series let the TF450 develop far more pressure than a single stage cased axial of the same 450mm 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 TF500 moves up to 8222 m³/h (about 6541 m³/h at 200 Pa) on 500mm 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 450mm (061B-0450) 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 063-0450-MAN150 and AV mounts 062-003 to stop vibration reaching the ductwork, available to order, ask us.
- Elta ancillary pack APK450SI/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 | TF450/4-1AC |
| Type | Two stage contra-rotating axial flow fan |
| Diameter | 450mm |
| Max airflow | 7452 m³/h |
| Static pressure | 300 Pa |
| Motor | Single phase AC, 220-240V, 4 pole, 1465 rpm |
| Power | 0.90 kW (4.01 A) |
| Noise | 67 dB(A) inlet, 68 dB(A) outlet at 3m |
| Terminal box | IP55, mounted on the casing |
| Warranty | 1 Year Manufacturer |
| Airflow at 200 Pa | 6030 m³/h |
| Airflow at 300 Pa | 4975 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 | 540mm |
| Weight | 81 kg |
| Efficiency at best point | 52.7% (FMEG 59) |
| Speed controller | 149-TC110 |
| Wiring diagram | 152-502 |
Manuals & Guides
Product Description
The Elta Turboflow TF450/4-1AC is a 450mm two stage contra-rotating axial flow fan for higher pressure duct systems. It moves up to 7452 m³/h in free air and the Elta datasheet shows it still delivering 4975 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 7452 m³/h
- Speed Controllable
What it is best used for
Ducted extract or supply where a 450mm duct has to work against real resistance: plant rooms and boiler rooms, changing rooms, squash courts and smaller gym halls, or a factory extract run with bends, grilles and an attenuator. At 200 Pa it still moves about 6030 m³/h.
It is not suitable for corrosive or explosive atmospheres, and at 67 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 alternatives
Two contra-rotating impellers in series let the TF450 develop far more pressure than a single stage cased axial of the same 450mm 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 TF500 moves up to 8222 m³/h (about 6541 m³/h at 200 Pa) on 500mm 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 450mm (061B-0450) 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 063-0450-MAN150 and AV mounts 062-003 to stop vibration reaching the ductwork, available to order, ask us.
- Elta ancillary pack APK450SI/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 | TF450/4-1AC |
| Type | Two stage contra-rotating axial flow fan |
| Diameter | 450mm |
| Max airflow | 7452 m³/h |
| Static pressure | 300 Pa |
| Motor | Single phase AC, 220-240V, 4 pole, 1465 rpm |
| Power | 0.90 kW (4.01 A) |
| Noise | 67 dB(A) inlet, 68 dB(A) outlet at 3m |
| Terminal box | IP55, mounted on the casing |
| Warranty | 1 Year Manufacturer |
| Airflow at 200 Pa | 6030 m³/h |
| Airflow at 300 Pa | 4975 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 | 540mm |
| Weight | 81 kg |
| Efficiency at best point | 52.7% (FMEG 59) |
| Speed controller | 149-TC110 |
| Wiring diagram | 152-502 |
Manuals & Guides
Delivery & Returns
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What is a contra-rotating fan and why does the TF450 have two stages?
It has two impellers, one behind the other, turning in opposite directions. The second stage recovers the swirl from the first, so the TF450 reaches 300 Pa in the Elta datasheet table where a single stage cased axial of the same 450mm size would run out of pressure.
How much air does the Turboflow TF450 move?
Up to 7452 m³/h in free air, about 6030 m³/h at 200 Pa and 4975 m³/h at 300 Pa. Send us your system resistance and we will confirm the duty point.
Can the TF450 be speed controlled?
Yes. Elta list the 149-TC110 transformer controller for this fan. Speed controlled, the fan is rated for ambients up to +50°C rather than +70°C at fixed speed.
Can the TF450 be installed outside?
Yes. Elta rate the Turboflow for internal or external use. The motors are wired via a weatherproofed cable to an IP55 terminal box on the outside of the casing.
Can it be mounted vertically?
Yes. The motors have sealed for life ball bearings, so the fan can be mounted at any angle as long as it is properly supported.
How do I choose between the TF450, TF500, TF560 and TF630?
Match the fan to your duct size and duty. In free air they move 7452, 8222, 10577 and 16560 m³/h. The TF450 and TF500 are rated to 300 Pa and the TF560 and TF630 to 400 Pa in the Elta table. Send us your airflow and pressure if you are between sizes.