Jet Fans ARR-AUR

The ARR-AUR are reversible (ARR) and unidirectional (AUR) tunnel fans for ventilation of aggressive atmospheres such as road traffic and train tunnels. In addition to performing standard ventilation they double-function as part of the fire-fighting resources and are tested and approved to meet requirements for smoke exhaust.
The design is characterised by the circular silencers and employs the renowned NovAx axial flow fans.

Product facts

• For tunnel installation
• Nine impeller diameters of Ø630 to Ø1600 mm
• Standard temperature range -20 to +40 °C
• Thrusts
  AUR: Up to 2882 N
  ARR: Up to 2755 N
• Sound power
  1D silencers: between 98 and 113 dB(A)
  2D silencers: between 94 and 109 dB(A)
• Sound pressure at 10 m/45° free field conditions
  1D silencers: between 70 and 85 dB(A)
  2D silencers: between 66 and 81 dB(A)
• F200, F300 and F400 approved for smoke extract
• Material static parts
  • Hot-dip galvanised sheet steel or
  • Stainless steel
• Hub of galvanised steel
  Optional: Powder coated
• Impeller blades of aluminium
• Deflectors on the outlets and for ARR also on the inlet
• Wire guard on the inlet for AUR
• Corrosion categories according EN-ISO 12944-2:2017
  Standard: C3
  Optional: C4 or C5

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