Mechanical Supplies
Diffuser
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- Square, round and perforated face ceiling diffusers with fixed or adjustable cones, giving a horizontal or vertical discharge pattern. Neck size is selected on throw and noise criterion rather than on the duct size that happens to be available.
- The default supply outlet in false ceilings across offices, retail, hospitality and healthcare. The horizontal pattern uses the Coanda effect to hold the jet against the ceiling until it has mixed with room air — which is why a diffuser mounted too close to a bulkhead, or fed by a squashed flexible duct, dumps cold air onto the people below it.
- ASHRAE 70
- ASHRAE 113
- EN 12238
- EN ISO 5219
- AMCA 500-D
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