Turboflow TF

Contra Rotating Axial Flow Fan

  • Standard size 450mm
  • Air volume flow rates up to 2.07 m3/s
  • Static pressures up to 330 Pa
  • Suitable for operating temperatures up to +50°C
  • Ideal for internal or external use
  • Available in AC
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Overview

The Turboflow TF is a two stage axial fan which has been specifically developed to tackle higher pressure requirements with a straightforward, efficient and definitive approach.

Features and Benefits

Easy Installation

Motors are wired via a weatherproofed cable to an IP55 protected terminal box mounted on the outside of the unit casing for ease of electrical connection.

Efficient Performance

High efficiency adjustable pitch aerofoil impellers are provided with blades made from high quality pressure die cast aluminium. Increased blade chord and twist provides 7% higher efficiency reducing overall energy consumption. The use of contra-rotating impellers allow operation at higher pressures within a smaller fan diameter.

Controllability

The Eltadrive range of inverters has been designed encompassing the latest technology and combining robustness with reliability. Using an inverter to control fans via sensors to reduce fan speed can provide significant cost-savings through lower energy consumption.

Long Life

The use of robust three phase motors, coupled with inverter soft starts, reduces wear and prolongs life.

Warranty

Each TF has a 12 month warranty.

Specification

Casing

The all metal fan casing provides a long lasting and robust construction. The units have been constructed from a single sheet of steel, with both motors and axial impellers mounted within the length of the unit casing. All casing parts are heavy gauge mild steel sheet, roll formed and welded, then hot dip galvanised to BS EN ISO 1461:2009 after fabrication.

Motors

Motors are highly efficient, lightweight induction motors with sealed for life, maintenance free ball bearings, which allows the fan to be installed at any angle. Each motor is matched to the aerodynamic performance of the impeller. Motors are Class F insulated to EN 60034-5, weatherproofed to IP55. Fans are suitable for operating temperatures between -20°C and +70°C, dependant on model and -20°C and +50°C when used with a transformer speed controller (single phase models). Electrical connection to the motor is provided by an IP55 terminal box which is fitted onto the outer side of the fan casing.

Impellers

Adjustable pitch increased twist aerofoil impellers are provided with blades made from high quality pressure die cast aluminium (LM6), natural finish. Impellers are factory set at an angle to provide maximum performance. The hubs are manufactured from die cast aluminium alloy (LM24). Assembled impellers are to be dynamically balanced to ISO 14694 Grade G6.3.

Control

Speed control shall be via stepped Transformer or Eltadrive VSD, dependant on model. Eltadrive VSD IP20 or Switched IP66 shall provide precise motor control and energy savings. The Eltadrive range of inverters have been designed encompassing the latest technology and combining robustness with reliability. Using an inverter to control fans via sensors to reduce fan speed can provide significant cost-savings through lower energy consumption.

Quality Management

Units are to be designed and manufactured with procedures as defined in BS EN ISO 9001. All Turboflow TF units are to be tested to ISO 5801 (airside performance) and BS 848 Part 2 (sound performance).

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