Type VDL

For high rooms, with adjustable air control blades

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

VDL 00132524_0
  • Application
  • Description

Application

  • Type VDL ceiling swirl diffusers are used as supply air diffusers for high rooms in comfort and industrial zones
  • For production halls, gymnasiums, theatres and conference rooms as well as for large internal spaces in airports, railway stations and shopping centres
  • For mixed flow ventilation with different air patterns in heating and cooling modes
  • Horizontal swirling supply air discharge in cooling mode
  • The efficient swirl creates high induction levels, thereby rapidly reducing the temperature difference and airflow velocity
  • Air discharge from 0° (horizontal) to 90° (vertical)
  • For variable and constant volume flows
  • For supply air to room air temperature differences from –12 to +15 K
  • For room heights exceeding 3.8 m
  • With freely suspended installation, an extended border supports the horizontal air discharge in cooling mode

Special characteristics

  • For high rooms, with adjustable air control blades
  • Diffuser face with aerodynamically optimised contours
  • The air pattern can be adjusted manually or with an actuator
  • Horizontal or vertical duct connection

Nominal sizes

  • 315, 400, 630, 800

Variants

  • A: Diffuser face without flange
  • B: Diffuser face with flange


Connection

  • F: Diffuser face only
  • H: Horizontal duct connection, with plenum box
  • V: Vertical duct connection, with plenum box


Diffuser face

  • N: Non-removable diffuser face
  • D: Removable diffuser face, only in variant with plenum box

Parts and characteristics

  • Circular diffuser face
  • Removable or non-removable diffuser face
  • Radially arranged fixed or adjustable blades for air discharge from horizontal (0°) to vertical (90°)
  • Diffuser face with or without flange
  • Adjustment mechanism covered by decorative cap

Accessories

  • Lip seal
  • Electric actuators for adjusting the air discharge direction
  • Extended border and protective cage

Useful additions

  • TDC temperature difference control module

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with groove for lip seal (if accessory lip seal has been ordered)

Materials and surfaces

  • Blades, casing, duct collar, extended border, plenum box and cross bar made of galvanised sheet steel
  • Diffuser face and decorative cap made of aluminium
  • Protective cage made of steel mesh
  • Blades, duct collar, extended border, plenum box, diffuser face and decorative cap powder-coated RAL 9010, pure white
  • P1: Powder-coated, RAL CLASSIC colour

Standards and guidelines

  • Sound power level of the air-regenerated noise measured according to EN ISO 5135

Maintenance

  • Maintenance-free as construction and materials are not subject to wear
  • Inspection and cleaning to VDI 6022

References

Moses Mabhida Stadium - Durban (South Africa)

  • Task
  • Solution
  • Result
In Durban on the east coast of South Africa, the new, futuristic Moses Mabhida Stadium is currently being built for the 2010 Football World Cup.
In addition to the highly modern indoor stage, the stadium will include a sports museum and an athletic institute. 
The breathtaking stadium, which is covered by a 100 meter high arch made of steel, has room for 70,000 spectators.
TROX is supplying not only fire dampers for the safety of the spectators, but it is also providing a pleasant climate in the stadium.
To meet the comfort requirements of large halls, the owner decided on swirl diffusers of the VDL series, which provide an optimum distribution of warm and cool air in the comfort zone due to changes in the slat adjustment.
Due to the worldwide energy shortage and ongoing discussion about the climate, increasingly energy-efficient solutions in the area of heating, cooling, and ventilation technology are also in demand in South Africa. Thanks to innovative solutions, TROX was able to meet these requirements with its components and systems.

Share page

Recommend this page

Recommend this page by sending a link by mail.

Fields marked with an (*) are required fields.

Share page

Thank you for your recommendation!

Your recommendation has been sent and should arrive shortly.


Contact

We are here for you

Visual contact Visual contact

Please specify your message and type of request
Tel.: +7 495 221-5161 | Fax: +7 495 221-5171

Fields marked with an (*) are required fields.

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.: +7 495 221-5161 | Fax: +7 495 221-5171

Contact

We are here for you

Visual contact Visual contact

Please specify your message and type of request
Tel.: +7 495 221-5161 | Fax: +7 495 221-5171

Attachment (max. 10MB)

Fields marked with an (*) are required fields.

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.: +7 495 221-5161 | Fax: +7 495 221-5171