Vent Axia Centrifugal Roof Fans RMH series

  • Specially designed for use when medium pressure characteristics are required.


  • Equally suitable for flat or inclined roofs (maximum angle 30°), the range is suitable for kerb or purlin box mounting and boasts a wide range of accessories to suit many different industrial applications.
  • There are 5 sizes available 250, 315, 355/400, 450, 500/560 with duties ranging from 2.182m³/h to 13.068m³/h with pressure development available up to 600 Pa.
  • The mounting plate is molded with a fixed integral bell mouth to ensure optimum efficiency and precise alignment.
  • The weather-cowl is also molded to produce a smooth, internal surface and a tough, stable UV resistant finish.
  • Single phase 220-240V 50 Hz. Capacitor start and run. Three phase 380-415V 50Hz. A service isolator switch is provided for local isolation and the enclosure is protected to IP65
  • Most models are available with 4 and 6 pole motors.
  • The Mixed Flow roof range features a proven external rotor motor and backward curved mixed flow aluminum impeller assembly (355 Ø in polyamide) dynamically balanced, selected for performance and non-overloading characteristics.
  • The motors in this range are rated IP44
  • Ball bearings are greased for life and are designed to run at any angle.
  • Insulation is Class ‘B’ and operating temperature from -30°C to +40°C.

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