Circular Ceiling Diffusers - Air Diffusion
Circular Ceiling Diffusers - Air Diffusion
Circular Ceiling Diffusers - Air Diffusion
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<strong>Circular</strong> <strong>Ceiling</strong> <strong>Diffusers</strong>Performance GuideDampersDamper type DT003Radial opposed blade damper accessiblethe diffuser face.Steel construction, finish black paint (RAL9005).75Ø NSize ØN H160 160 55200 200 69250 250 89315 315 109355 355 124400 400 139450 450 157500 500 175600 630 221N = duct sizeH = expected duct height3820Pressure loss with damper type DT003Example:V k = 5 m/s with damper 50% openpressure loss = 40Pa, NR + 71009080706050Δ p t (pa)4030252015109876543NR + 15NR + 725%150% 100%2 2.5 3 4 5 6 7 8 10v k (m/s)www.air-diffusion.co.uk 21
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