Swirl diffuser 250 mm with uninsulated plenum box and side connection
This steel swirl diffuser with diffusion collar and fixed vanes, also called a ceiling diffuser, has a 250mm connection diameter, and is supplied with an uninsulated plenum box with 200 mm side connection. Thanks to its high inducing effect, the swirl diffuser is highly suited for efficiently displacing very cool or warm air. The swirl diffuser can be used for both extracting and supplying air.
The diffusion collar produces the so-called Coanda effect when air is being delivered. This is an effect where the jet of air tends to follow the surface, instead of a straight line in the original direction. The advantage of this is greater throw and better distribution of air through the room. This produces maximum comfort in the room.
It is easy to connect a spiral pipe or flexible hose to the side connection on the uninsulated plenum box.
Wall grille property | Value |
Nominal diameter | 250 mm |
Installation | With screw fixings provided |
Connection | To uninsulated plenum box with 200 mm side connection |
Material | Steel |
Adjustable flow | No |
Functions | Supply and extraction |
Air throw | Coanda effect |
Swirl diffuser colours
All swirl diffusers can be supplied in a mixed colour for you (see table). Mixed colours are paint finishes which are mixed specifically for you. All products come on 90-day approval (except for products finished with a 'mixed colour blend').
Mixed colour | Name | Coating | Finish |
RAL 9010 (tip) | Pure white | Powder coating | 70% gloss |
RAL9003 | Signal white | Powder coating | 70% gloss |
RAL9005 | Black | Powder coating | 30% gloss |
RAL9016 | Traffic white | Powder coating | 70% gloss |
(mixed colours shown in photos may differ slightly)
These mixed colours are available at no extra cost. Prefer a different mixed colour? This can be arranged - please contact us for a custom quote.
Brand | Grada |
Category | Swirl diffusers with diffuser ring |
GTIN | 8719544210142 |
Manufacturer's item number | WR220-FS--0250-RAL9010 |
Article number | 37050322-9010 |
Specifications
Frontview | Round |
Color | RAL 9010 |
Material | Steel |
Nom. duct diameter connection | 250 mm |
Right of return | No. Mixed colour customisation |
For modular ceiling systems | None |
Shape of plenum | Rectangular |
Without plenum | No |
Coating | RAL 9010 |
Colour type (no surcharge) | Bespoke |
Top connection on plenum | No |
Front diameter | 310 mm |