Perdületbefúvók

For a seamless ceiling appearance without visual interruptions

• Non-visible due to the black coated functional unit located on the reverse of the diffuser face or ceiling tile
• Flexible combination options with various standard perforated metal ceiling tiles or a factory-made perforated sheet metal front
• Maximum comfort due to swirling air distribution, swift reduction of supply air velocities and temperature differences
• Easy installation, with either plenum box or direct air connection

Circular and square ceiling swirl diffusers

• Nominal sizes 300, 400, 500, 600, 625
  
  
• Volume flow rate range 10 – 265 l/s or 36 – 954 m³/h
  
  
• Diffuser face made of galvanised sheet steel, powder-coated
  
  
• For supply and extract air
  
  
• For variable and constant volume flows
  
  
• For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
  
  
• High induction results in a rapid reduction of the temperature difference and airflow velocity
  
  
• Ideal for comfort zones

Optional equipment and accessories

• Exposed diffuser face available in RAL Classic colours
  
  
• Horizontal or vertical duct connection
  
  
• Plenum box with cord-operated damper blade and pressure tap

Circular and square ceiling swirl diffusers for high volume flow rates at low sound power levels and low differential pressure

• Nominal sizes 600, 625
• Volume flow rate range 31 – 265 l/s or 110 – 954 m³/h
• Diffuser face made of galvanised sheet steel, powder-coated
• For supply and extract air
• For variable and constant volume flows
• For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
• Swirl unit inside for the best swirl effect and high induction levels
• Plenum box with acoustically optimised and lockable damper blade
• Ideal for comfort zones

Optional equipment and accessories

• Exposed diffuser face available in RAL Classic colours

Circular ceiling swirl diffusers, with manual or motorised adjustment of the air pattern to ensure draught-free ventilation of the occupied zone both in heating and cooling modes

• Nominal sizes 315, 400, 630, 800
• Volume flow rate range 65 – 1080 l/s or 234 – 3888 m³/h
• Diffuser face made of galvanised, powder-coated sheet steel and of aluminium
• For supply air
• For variable and constant volume flows
• High induction results in a rapid reduction of the temperature difference and airflow velocity
• Discharge direction can be adjusted manually or with an actuator
• Diffuser face with aerodynamically optimised contours
• Ideal for high rooms

Optional equipment and accessories

• Exposed diffuser face available in RAL CLASSIC colours
• Horizontal or vertical duct connection
• An extended border improves the horizontal air discharge in cooling mode
• Protective cage for use in gymnasiums
• Actuators for adjusting the air discharge direction
• Diffuser face can be removed from the room side

Circular and square ceiling swirl diffusers with fixed air control blades, for high volume flow rates at low sound power levels and low differential pressure due to innovative polymer technology

• Nominal sizes 160, 250, 300, 400, 600, 625
  
  
• Volume flow rate range 5 – 385 l/s or 16 – 1386 m³/h
  
  
• Plastic diffuser face with overlapping, three-dimensionally contoured blades, for the most efficient swirl and high induction
  
  
• For supply and extract air
  
  
• For variable and constant volume flows
  
  
• For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
  
  
• Diffuser face with gently sloped, flat border – only 3 mm high
  
  
• Plenum box with acoustically optimised and lockable damper blade
  
  
• Spigot for nominal sizes 160 and 250 allows for quick, simple and direct connection to the ductwork
  
  
• Diffuser face with bayonet fixing (no tools required) available for nominal size 160 or 250 and with a spigot

Optional equipment and accessories

• Exposed diffuser face available in RAL CLASSIC colours

Circular and square ceiling swirl diffusers that create high induction levels, for high room air change rates

• Nominal sizes 300, 400, 500, 600, 625
• Volume flow rate range 9 – 235 l/s or 31 – 846 m³/h
• Diffuser face made of galvanised sheet steel, powder-coated
• For supply and extract air
• For variable and constant volume flows
• For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
• High induction results in a rapid reduction of the temperature difference and airflow velocity
• Very high room air change rate possible thanks to row arrangement with a minimum pitch distance of 0.9 m
• Ideal for comfort zones
• Circular diffuser faces can be easily mounted without tools in a circular plenum box with horizontal spigot

Optional equipment and accessories

• Exposed diffuser face available in RAL CLASSIC colours
• Square plenum box with cord-operated damper unit and pressure tap

Square ceiling swirl diffusers, with manual or motorised adjustment of the air pattern to ensure draught-free ventilation of the occupied zone both in heating and cooling modes

• Nominal sizes 425, 600, 775, 1050
• Volume flow rate range 95 – 1490 l/s or 342 – 5364 m³/h
• Diffuser face made of aluminium with anodised finish
• For supply air
• For variable and constant volume flows
• High induction results in a rapid reduction of the temperature difference and airflow velocity
• Discharge direction can be adjusted manually or with an actuator
• Ideal for high rooms

Optional equipment and accessories

• Exposed diffuser face available in RAL CLASSIC colours
• Horizontal or vertical duct connection
• An extended border improves the horizontal air discharge in cooling mode
• Protective cage for use in gymnasiums
• Actuators for adjusting the air discharge direction

• Flexible plenum box
• Less weight, less transport and storage space
• Newly developed air distribution element to ensure a uniform air flow through a supply air diffuser
• Acoustically optimised damper blade for flow rate balancing
• Spigot with double lip seal
• For supply or extract air