Swirl diffusers

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TDF-SilentAIR


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

 


 


 

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FLEXTRO

Flexible plenum boxes for supply air and extract air

  • For circular and square diffuser faces
  • Plenum box made of plastic and galvanised sheet steel
  • For supply and extract air
  • For all types of ceiling systems
  • Horizontal duct connection
  • Equalising element that ensures a uniform airflow through the diffuser face (supply air variant)
  • With acoustically optimised and lockable damper blade
  • Spigot with double lip seal
  • Up to 50 % less weight
  • Approximately 60 % less transport and storage space required
  • For comfort zones and industrial zones

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layer

FD

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

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layer

AIRNAMIC

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

 

 

 


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layer

VDW


Circular and square ceiling swirl diffusers for high room air change rates

  • Nominal sizes 300, 400, 500, 600, 625, 825

  • Volume flow rate range 7 – 470 l/s or 25 – 1692 m³/h

  • Diffuser face made of galvanised sheet steel, powder-coated

  • 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 due 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, air control blades in black or white

  • Horizontal or vertical duct connection

  • Square plenum box with cord-operated damper unit and pressure tap

 

 

 


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VD

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

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layer

AK-Uni


 

Standard plenum box for supply and extract air for square diffuser faces and for all type TDV, RFD, TID, ADLQ, DLQ, ADLR and DLQL diffusers. 

  • Plenum box made of galvanised sheet steel
  • For all types of ceiling systems
  • Horizontal duct connection
  • Permanent equalising element that ensures an optimum airflow through the diffuser face (supply air variant)
  • For comfort zones and industrial zones

 

Optional equipment and accessories

  • Damper unit for volume flow rate balancing
  • Pressure tap and cord-operated damper blade for volume flow rate balancing
  • Lip seal

 

 

 


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layer

RFD

Circular and square ceiling swirl diffusers

  • Nominal sizes 5, 6, 8, 10, 12, 16 in
  • Volume flow rate range 8.2 - 770 cfm
  • Diffuser face made of galvanised sheet steel, powder-coated, or of aluminium (depending on variant)
  • For supply and extract air
  • For variable and constant volume flows
  • For all types of ceiling systems
  • With discharge nozzle ideal for cooling in case of freely suspended installation
  • High induction results in a rapid reduction of the temperature difference and airflow velocity
  • Air change rates of up to 35 per hour can be achieved by arranging several diffusers in a row with a minimum pitch of 3 ft (center line to center line)
  • Ideal for comfort zones


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colors
  • Horizontal or vertical duct connection
  • Plenum box with cord-operated damper blade and pressure tap
  • Shallow plenum box

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Please select your disired product properties:
  • Architecture and Design
  • Comfort areas
  • For great room heights
  • adjustable control blades
  • fixed control blades
  • low sound power level
  • varying heat loads
  • circular
  • circular-square
  • square
  • Aluminium
  • Plastic
  • Steel
With very low sound power level for comfort zones, with fixed air control blades TDF-SilentAIR

TDF-SilentAIR

With very low sound power level for comfort zones, with fixed air control blades

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Flexible plenum boxes requiring less transport and storage space FLEXTRO

FLEXTRO

Flexible plenum boxes requiring less transport and storage space

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For comfort zones, with fixed air control blades FD

FD

For comfort zones, with fixed air control blades

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For the most demanding requirements of technical function, comfort, and design AIRNAMIC

AIRNAMIC

For the most demanding requirements of technical function, comfort, and design

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With low sound power level for comfort zones, with individually manually adjustable air control blades VDW

VDW

With low sound power level for comfort zones, with individually manually adjustable air control blades

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For high rooms, with adjustable air control blades VD

VD

For high rooms, with adjustable air control blades

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Universal plenum box, available in many variants Uni-AK

AK-Uni

Universal plenum box, available in many variants

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With low sound power level for comfort and industrial zones, with fixed air control blades RFD

RFD

With low sound power level for comfort and industrial zones, with fixed air control blades

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With very low sound power level for comfort zones and individually manually adjustable air control blades TDV-SilentAIR

TDV-SilentAIR

With very low sound power level for comfort zones and individually manually adjustable air control blades

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For high rooms, with adjustable air control blades VDL

VDL

For high rooms, with adjustable air control blades

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For more refined comfort zones with special demands on architecture and design, with fixed air control blades XARTO

XARTO

For more refined comfort zones with special demands on architecture and design, with fixed air control blades

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VISUALISATION OF AIR FLOW - SWIRL DIFFUSER

In TROX Air flow studio, the flow behavior of the air with various air distribution system is made impressively visible. The introduction of smoke in an authentic situation with space heat load simulators shows real flow patterns.

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