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Long-throw rectangular diffusers – DF 47

Long-throw rectangular diffusers – DF 47
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Long-throw rectangular diffusers – DF 47 - 1

DF-47 Long-throw rectangular diffusers

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Long-throw rectangular diffusers – DF 47 - 2

CONTENTS DF-47 rectangular diffuser 2 Selection and correction charts 5

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Long-throw rectangular diffusers – DF 47 - 3

DF-47 rectangular diffuser Description The DF-47 long-throw rectangular diffuser is manufactured entirely of anodised aluminium with a natural finish. The diffuser is composed of a drum allowing the unit to be swiveled, thereby permitting the inlet airflow to be vertically positioned at an angle of ±20º. The unit is also equipped with deflecting blades for distributing the air in horizontal fan-shape or concentrating the inlet airflow in the desired direction. Application These long-throw, high-flow diffusers are particularly useful when the air jet should reach some distance or should be...

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Long-throw rectangular diffusers – DF 47 - 4

The AE model with the motor drive is longer, due to the servo motor. The CC model, constructed to be fitted directly to the round duct, can also be motor-driven (AE). The diffusers can be swiveled ±20° around the horizontal symmetry axis.

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Long-throw rectangular diffusers – DF 47 - 5

Notes - This selection table is based on laboratory tests as per ISO 5219 (UNE 100.710) and ISO 5135 and 3741. - AT is equal to 0°C (isothermal air). - The behaviour of the air jet with different At is shown in the following charts. Symbols Q = Air flow VK = Effective velocity AK = Effective area APt = Total pressure drop LwA = Sound power X0,3 - X0,5 - X1i0 = Throw for a terminal air velocity of 0.3, 0.5 and 1.0 m/s, respectively.

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Long-throw rectangular diffusers – DF 47 - 6

DF-47 DF-47 model Selection charts DF-47-1.-Maximum vertical penetration

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Long-throw rectangular diffusers – DF 47 - 7

DF-47 model DF-47-2.- Velocity of the air jet in the throw

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DF-47 model DF-47-3.1.- Vertical deviation of the air jet (non-isothermal jets)

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Long-throw rectangular diffusers – DF 47 - 9

DF-47 model DF-47-3.2.- Vertical deviation of the air jet (non-isothermal jets)

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Long-throw rectangular diffusers – DF 47 - 10

DF-47 model DF-47-3.3.- Vertical deviation of the air jet (non-isothermal jets)

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Long-throw rectangular diffusers – DF 47 - 11

DF-47 model DF-47-3.4.- Vertical deviation of the air jet (non-isothermal jets)

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Long-throw rectangular diffusers – DF 47 - 12

DF-47 model DF-47-3.5.- Vertical deviation of the air jet (non-isothermal jets)

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Long-throw rectangular diffusers – DF 47 - 13

DF-47 model DF-47-4.- Ratio between air flow velocities. DF-47-5.- Ratio between temperature differences.

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Long-throw rectangular diffusers – DF 47 - 14

DF-47 DF-47 model DF-47-6.- Induction rate DF-47-7.- Pressure drop and sound power level

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Long-throw rectangular diffusers – DF 47 - 15

DF-47 Symbols Common symbols used in all tables and charts in the catalogue. Distance between the equipment to the impact point of the jets (with another jet or wall) under isothermal conditions. Supply angle. Horizontal distance from the equipment to the impact point of the jets (with another jet or wall). Throw of the air jet. Deviation of the air jet caused by a temperature difference between the supply and ambient air. Installation height of the equipment. Height of occupied area. Height from the impact point of the jets (with another jet or wall) under isothermal conditions with...

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Long-throw rectangular diffusers – DF 47 - 16

THIS CATALOGUE IS INTELLECTUAL PROPERTY. Reproduction, either partial or total, by any means, including electronic, is prohibited without prior written authorisation from KOOLAIR, S.A. CEN-DF-47-0815-00

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Long-throw rectangular diffusers – DF 47 - 17

KOOLAIR, S.A. Calle Urano, 26 Poligono industrial nº 2 – La Fuensanta 28936 Móstoles - Madrid - (España) Tel: +34 91 645 00 33 Fax: +34 91 645 69 62 e-mail: info@koolair.com

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Long-throw rectangular diffusers – DF 47 17Pages

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Long-throw rectangular diffusers – DF 47
17Pages