centrifugal fan / ventilation / backward curved / in-line

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centrifugal fan / ventilation / backward curved / in-line centrifugal fan / ventilation / backward curved / in-line - RS


  • Configuration:


  • Function:


  • Other characteristics:

    backward curved, in-line, plastic, galvanized steel, for tube ducts

  • Air flow:

    Max.: 1,200 m³/h (42,377.6 ft³/h)

    Min.: 0 m³/h (0 ft³/h)


Tube fans (Type: RS)

flow rates up to 1,200 m³/h
size: 100 - 315 mm (tube diameter)
plastic casing
absolutely resistant to corrosion
backward curved impellers
can be used in all mounting positions
speed is 100% infinitely variable using auto transformers or electronic control
extremely low noise level


The sizes 100L - 315L have an elegant, high-impact, flame-retardant plastic housing with an integrated terminal box IP44 and guide vanes.

The impellers up to size 315 are made of plastic, the size 315L are made of galvanised sheet steel. The impellers are mounted directly on the rotors of the external rotor motors and are dynamically balanced on two levels with the rotor according to quality level G2.5 as per DIN ISO 1940.
Electrical connection

The electrical connection is made through a terminal box mounted on the casing with protection class IP44.

Rigid folded spiral-seam tubes (Spiro), flexible aluminium or plastic tubes with standardised diameter can be used. Rosenberg tube fans can be used in all mounting positions. When used over several floors of a building, the local fire safety regulations must be observed.