Swirl diffusers

Product finder

layer

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

TDV-SilentAIR

Circular and square ceiling swirl diffusers

  • Nominal sizes 300, 400, 500, 600, 625
  • Volume flow rate range 11 – 315 l/s or 40 – 1134 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
  • Air control blades can be adjusted individually for adjusting the air pattern
  • Ideal for comfort zones


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colours, air control blades in black or white
  • Horizontal or vertical duct connection
  • Plenum box with cord-operated damper blade and pressure tap

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layer

RFD

Circular and square ceiling swirl diffusers

  • Nominal sizes 125, 160, 200, 250, 315, 400
  • Volume flow rate range 4 – 330 l/s or 14 – 1188 m³/h
  • 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 0.9 m (centre line to centre line)
  • 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
  • Shallow plenum box

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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 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
  • Air change rates of up to 35 per hour can be achieved by arranging several diffusers in a row with a minimum pitch of 0.9 m (centre line to centre line)
  • Ideal for comfort zones


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colours, air control blades in black or white
  • Horizontal or vertical duct connection
  • Plenum box with cord-operated damper blade and pressure tap

read more

layer

DCS

Square ceiling swirl diffusers with perforated face plate, for comfort and industrial zones

  • Nominal sizes 600, 625
  • Volume flow rate range 4 – 260 l/s or 16 – 936 m³/h
  • Perforated 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, particularly for T-bar ceilings
  • Swirl unit inside, 6 sizes, for the best swirl effect and high induction levels
  • Ideal for comfort zones


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colours
  • Horizontal or vertical duct connection
  • Plenum box with lining

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layer

TDF-SilentAIR

Circular and square ceiling swirl diffusers

  • Nominal sizes 300, 400, 500, 600, 625
  • Volume flow rate range 10 – 295 l/s or 36 – 1026 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

read more

layer

ADD

Circular and square ceiling swirl diffusers

  • Nominal sizes 250, 300, 400, 450, 500, 600, 625
  • Volume flow rate range 20 – 465 l/s or 72 – 1674 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
  • 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

read more

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
  • Air change rates of up to 35 per hour can be achieved by arranging several diffusers in a row with a minimum pitch of 0.9 m (centre line to centre line)
  • Ideal for comfort zones


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colours
  • Plenum box with cord-operated damper blade and pressure tap

read more

Please select your disired product properties:
For high rooms, with adjustable air control blades Type VD

VD

For high rooms, with adjustable air control blades

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

TDV-SilentAIR

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

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

RFD

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

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

VDW

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

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For horizontal swirling supply air discharge creating high induction levels, with fixed air control blades Type DCS

DCS

For horizontal swirling supply air discharge creating high induction levels, with fixed air control blades

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With very low sound power level for comfort zones, with fixed air control blades Type TDF-SilentAIR

TDF-SilentAIR

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

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For the creative design of ceilings in comfort zones, with fixed air control blades Type ADD

ADD

For the creative design of ceilings in comfort zones, with fixed air control blades

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For comfort zones, with fixed air control blades Type FD

FD

For comfort zones, with fixed air control blades

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For high rooms, with adjustable air control blades Type 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 Type XARTO

XARTO

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

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

AIRNAMIC

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

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For high volume flow rates, with fixed air control blades Type FDE

FDE

For high volume flow rates, 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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Contact

Thank you for your message!

Visual contact Visual contact

Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +44 (0)1842 754545 | Fax: +44 (0)1842 763051