Ceiling swirl diffusers

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Type SDW

In addition to the existing range of TROX swirl diffusers, the type SDW swirl diffuser with manual adjustment has been developed. This enables the direction of discharge to be altered on site to cater for changes in room layout or partitions.
Due to the rotary swirling motion of the air discharge, induction of room air occurs very quickly, resulting in a rapid decay of supply air velocity and temperature differential. Air change rates of 30 per hour can be achieved with supply air temperature differentials of +10K to –10K.
The diffuser can be supplied with white or black air control blades depending on architectural requirements and is available with multiple border profiles to suit most ceiling systems. Air is supplied via top or side entry plenum boxes.The type SDW can be used for either supply or extract air  application. For supply air, special control elements are required. These are not necessary for use in the extract air mode.

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TDV-SilentAIR

Circular and square ceiling swirl diffusers

  • Nominal sizes 12, 16, 20, 24 in
  • Volume flow rate range 23 - 627 cfm
  • Diffuser face made of galvanized 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 colors, 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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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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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

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FDE

Square ceiling swirl diffusers

  • Nominal sizes 600, 625
  • Volume flow rate range 51 – 365 l/s or 184 – 1314 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
  • High induction results in a rapid reduction of the temperature difference and airflow velocity


Optional equipment and accessories

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

read more

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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 300, 400, 600, 625
  • Volume flow rate range 13 – 385 l/s or 47 – 1386 m³/h
  • Plastic diffuser face with overlapping, three-dimensionally profiled 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
  • Ideal for comfort zones


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colours

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VDW

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

  • Nominal sizes 12, 16, 20, 24, 25, 33 in.
  • Volume flow rate range 14 - 998 cfm
  • 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 3 ft (center line to center line)
  • Ideal for comfort zones


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colors, 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

VDL

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

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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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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

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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