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High capacity, high level, large airflow range, variable air pattern swirl diffuser for large volume spaces. Installation flush with ceiling or free-hanging. ...Read more


High capacity, high level, large airflow range, variable air pattern swirl diffuser for large volume spaces. Installation flush with ceiling or free-hanging.

Overview

Adjustable blades affixed to a guide-ring assembly slide along a helical path over substantially radial fixed visible swirl vanes that are flush with the diffuser face, providing air direction adjustment (manual, thermal or electric) at a substantially constant pressure.

Airflow rate 

  • 70 – 4000 L/s (250 – 14,400 m³/h) 

Discharge height

  • 2.5 – 15 m

Nominal neck sizes

  • DN250
  • DN355
  • DN500
  • DN710
  • DN1000 (in selected markets)

Features

  • High capacity variable air pattern swirl diffuser for large volume spaces with high ceilings.
  • Substantially constant pressure manual, thermal or electric air pattern adjustment from horizontal to vertically downwards.
  • Air pattern adjustment via adjustable swirl vanes affixed to helically adjustable guide-ring - patents pending.
  • Helical twist of swirl vanes reduces vane pitch towards the periphery for increased airflow operating range.
  • Steep central swirl vane pitch increases airflow capacity and reduces pressure drop.
  • Four nominal neck sizes, each available with an optional reducer for reduced airflow.
  • Airflow rate range reduces by approximately 30% with each reduction in effective neck size.
  • Circular face shape standard for all sizes.
  • Optional square face for sizes DN250 - DN500, suitable for ceiling grids from 300 mm up to 600 mm, depending on diffuser neck size.
  • Installation freely suspended or flush with closed ceiling.
  • Substantially flush face with 20 radially off-set swirl vanes.
  • Similar aesthetic to HSC-FD.

 Download Technical Brochure >>

The shipping charge depends on a number of factors including the area you live, and the size/weight of the item(s) you have ordered. Our system will generate a shipping cost at checkout after you have entered your shipping details.

If you feel that our system has incorrectly calculated your shipping cost please contact us at shop@airdiffusion.com.au with details of the product(s) you are after and your postcode and we will follow up.

We carry most commonly ordered items in stock. Items in stock will be shipped within 1-2 business days. You will be sent a tracking number once item has been dispatched.

During checkout there is the option to save on postage and pick up at one of our local Air Diffusion stores. Click here for store locations