VDW | TROX SE

Technical information

Schematic illustration of VDW-Q with square plenum box

① Diffuser face

② Central fixing screw

③ Adjustable air control blade

④ Plenum box

⑤ Cross bar

⑥ Suspension hole

⑦ Spigot

Optional

⑧ Lip seal

⑨ Damper blade for volume flow rate balancing

⑩ Pressure tap

⑪ Green cord for closing the damper blade

⑫ White cord for opening the damper blade

⑬ Measuring tube

⑭ Text label indicating plenum box variant

Ceiling swirl diffusers in air conditioning systems create a swirl to supply air to rooms. The resulting airflow induces high levels of room air, thereby rapidly reducing the airflow velocity and the temperature difference between supply air and room air. Ceiling swirl diffusers allow for large volume flow rates. The result is a mixed flow ventilation in comfort zones, with good overall room ventilation, creating only very little turbulence in the occupied zone.

Type VDW ceiling swirl diffusers have adjustable air control blades. The airflow direction can be adjusted to meet various local requirements. Horizontal air distribution consists of one-way, two-way or omni-directional flow. Vertical air discharge is possible but only for heating. The supply air to room air temperature difference may range from –12 to +10 K.

A damper blade (optional) simplifies volume flow rate balancing for commissioning. Pressure tap and cord-operated damper blade (optional) allow for volume flow rate balancing with the diffuser face in place.

To give rooms an aesthetic, uniform look, Type VDW diffusers may also be used for extract air. Air control blades are not required for extract air applications.

Nominal sizes	300, 400, 500, 600, 625, 825 mm
Dimensions ceiling panel	598 x 598 or 623 x 623
Minimum volume flow rate, with Δtz = -6 K	7 – 99 l/s or 25 – 357 m³/h
maximum volume flow, at LWA ≅ 50 dB(A)	80 – 470 l/s or 288 – 1692 m³/h
Supply air to room air temperature difference	-12 – +10 K

VDW

–

500 × 24

Q21

P1 - RAL 9016

1 Type
VDW Swirl diffuser

2 Construction style
R Circular
Q Square

3 System
Z Supply air
A extract air

4 Connection
H horizontal
V Vertical (the plenum box is always circular)

5 Damper blade for volume flow rate balancing
No entry required: Without damper unit
M With
MN With cords and pressure tap (only with square plenum box)

6 Accessories
No entry required: Without accessories
L with lip seal

7 Nominal size [mm]
300 × 8
400 × 16
500 × 24
600 × 24
600 × 48
625 × 24

Omly with construction style Q
625 × 54
825 × 72

8 Colour of air control blades
No entry required: supply air – black air control blades, extract air – no air control blades
Q11 Extract air – black air control blades
Q21 Supply air – white air control blades; extract air – white air control blades

9 Exposed surface
No entry: powder-coated RAL 9010, pure white
P1 Powder-coated, specify RAL CLASSIC colour

Gloss level
RAL 9010 GU50
RAL 9006 GU30
All other RAL colours GU70

Note: Circular plenum boxes with horizontal spigot are only available without damper unit and lip seal or with damper unit and lip seal. Features 2 and 4 define the plenum box geometry.

Downloads

product information

certificates

Environmental Product Declaration VDW

EPD_556814_VDW Environmental Product Declarations 900 KB pdf
Environmental Product Declaration VDW

VDW_EPD_2024_03_DE_en Environmental Product Declarations 450 KB pdf

production {"x-frame-options"=>"SAMEORIGIN", "x-xss-protection"=>"0", "x-content-type-options"=>"nosniff", "x-permitted-cross-domain-policies"=>"none", "referrer-policy"=>"strict-origin-when-cross-origin", "strict-transport-security"=>"max-age=31536000; includeSubDomains", "content-type"=>"text/html; charset=utf-8", "link"=>"</assets/application-3b58a4d4e5a0ce496ec32e94e37f84a3d4ac68bad1f7428fefb59515b85bfa00.css>; rel=preload; as=style; nopush,</assets/print-fec2e47d6d8dcc5d4c101139f17046ba981ca1c12f71e7e403fba50cc7584175.css>; rel=preload; as=style; nopush,</assets/other_js/modernizr.custom.93544-c26374a79d804901074bb4aa6fd3fa44ea22e840389915d2adce16b024021ef3.js>; rel=preload; as=script; nopush,</assets/other_js/js.cookie.min-de103d86d1919b40950f791699b4ce768137fde41af09b35ff92bde369732183.js>; rel=preload; as=script; nopush,</assets/other_js/jquery-3.5.1-2c4ce18a1a3f144c333912efc24a76c9a165a0dba9f88a499985df1af0a196a2.js>; rel=preload; as=script; nopush"}

By clicking the button, you allow us to provide you with an excellent website experience and easy shopping processes. These cookies include ones that are necessary for the operation of the site and for the control of our services and applications, as well as ones that are used solely for statistical purposes, for convenience settings or to display personalized content. You can decide which categories you want to allow and you can adjust the data utilisation settings based on your individual requirements. Please note that, depending on the settings that you have selected, all functionalities of the page might not be available. You can change your selection at any time.

TECHNICALLY NECESSARY

These cookies are necessary for the proper functioning of our website and cannot be disabled. As a rule, these cookies are set only in response to actions taken by you, such as setting your privacy preferences or filling the shopping cart. In addition, security-relevant functionalities or support via a dedicated webchat are integrated, including all session cookies from TROX set after you log in as a customer. You can set your browser to block these cookies or notify you about them. As a result, however, some areas of the website might not function as intended.

STATISTICS AND WEBSITE ANALYSIS

These cookies make it possible to collect data for statistics and analysis so that TROX can measure the performance of the websites visited, identify technical problems and find starting points for optimisation. They may be set by us or by third parties whose services we use on our sites. Users also help to identify, for example, which pages are used most frequently or only rarely or how people navigate between web pages. All information used by third parties is aggregated and anonymised.