DQF
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Catalog excerpts

05/16 - 2 Construction subject to change. Version: 20.09.2019 No return possible!

Model DQF-Q-... DQF-R-... DQF-...-Z-... DQF-...-A-... Description The ceiling swirl diffuser type DQF-... has been developed in particular for comfort rooms with a high air change rate. The swirl diffuser is made either with a square faceplate (type DQF-Q-...) or a round faceplate (type DQF-R-...) with integrated air deflection blade. The diffuser plate achieves a horizontal swirl jet. The diffuser can be used for both supply and return air installations. The swirl diffuser is suitable in particular for installations with variable volumetric flow. A stable jet pattern is guaranteed by the...

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Swirl Diffuser DQF Fastening Screw mounting (-SM) (DQF-Q-... only) - for model with ball-impact guard only (-BS) - with 4 raised countersunk head tapping screws (on-site) Concealed mounting (-VM, as standard) - only possible in connection with plenum box type SK-R-11-... - Traverse fixing by a M6 screw according to DIN EN ISO 10642 for mounting at the plenum box. MODELS Square faceplate DQF-Q-... round faceplate DQF-R-... 05/16 - 4 Construction subject to change. Version: 20.09.2019 No return possible!

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Swirl Diffuser DQF Dimensions DQF-...-Z-... with SK-R-11-Z-... (for supply air, with concealed mounting) DQF-...-A-... with SK-R-11-A-... (for return air, with concealed mounting) b = suspension on-site Available sizes NW Spigot position KHS= standard height of plenum box Special height of plenum box = øD + 137 mm, but at least 235 mm Dimension of plenum box SK-... for spigot position S0 / S2 / S3 / S5 on request. See page 6 for detail X. 05/16 - 5 Construction subject to change.

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Swirl Diffuser DQF Dimensions of accessories Ball-impact guard (-BS) (only possible for DQF-Q-... with SM mounting) (at an extra charge) Damper (-DK1 / -DK2), for SK-R... without cable-operated adjustment (-DK1) with cable-operated adjustment (-DK2) SZV = cable-operated adjustment Rubber lip seal (-GD1), for SK-... Detail X Detail Z Volumetric flow meter (-VME1), for SK-... (not for use with a damper) Thermal insulation, for SK-R-... internal (-Ii) external (-Ia) 05/16 - 6 Construction subject to change. Version: 20.09.2019 No return possible!

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Swirl Diffuser DQF Fastening methods Screw mounting (-SM) (DQF-Q-... only for model with ball-impact guard only 1.) Indentation for slotted shallow-raised countersunk-head tapping screw DIN ISO 7051 pitch 3.9 (screws provided on site) 2.) Indentation for slotted shallow-raised countersunk-head tapping screw DIN ISO 7051 pitch 4.8 (screws provided on site) Version: 20.09.2019 Construction subject to change. No return possible!

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Swirl Diffuser DQF Technical data Pressure loss and noise level (supply air), with plenum box Damper position (DS): 0% = CLOSED / 100% = OPEN 05/16 - 8 Construction subject to change. Version: 20.09.2019 No return possible!

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Swirl Diffuser DQF(return air) with plenum box and damper Damper position (DS): 0% = CLOSED / 100% = OPEN Maximum end velocity of jet05/16 - 9 Construction subject to change.

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Swirl Diffuser DQF (supply air), with plenum box 05/16 - 10 Construction subject to change. Version: 20.09.2019 No return possible!

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Swirl Diffuser DQF Critical throw 05/16 - 11 Construction subject to change. Version: 20.09.2019 No return possible!

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Supply air volume Supply air volume Pressure loss A-weighted sound power level Density Maximum end velocity of jet Average end velocity of jet vmittel = vmax x horizontal + vertical throw Temperature difference between supply air temperature and room temperature (ATO = tZU- tR ) Critical throw Temperature ratio (TV = aTx / aTo) Induction ratio (i = Vx / Vzu) Nominal width Temperature difference at point x total air jet volume at point x total air jet volume at point x Supply air temperature Room temperature Construction subject to change.

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Swirl Diffuser DQF Order details DQF 01 Sample DQF-Q-Z-500-SB-9010-VM-BO Ceiling swirl diffuser type DQF I square faceplate I supply air I NW500 I faceplate made of sheet steel I faceplate painted to RAL9010 I concealed mounting I without ball-impact guard Order details 01 - Type Model DQF = ceiling swirl diffuser 02 - Model Q = Square faceplate 05 - Material SB = Sheet steel AL = Aluminium (only available with VM) 06- Paint 9010 = RAL colour white (standard) xxxx = RAL colour can be freely selected ELOX = Natural colour anodised (only for AL) 07 - Mounting VM = concealed mounting...

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Swirl Diffuser DQF Order details SK 01 Plenum box, square design I for round air diffusers I air diffuser DQF I supply air I NW500 I concealed mounting I galvanised sheet steel I with damper with cable I with rubber lip seal I with volumetric flow meter I without ROB model I without box insulation I standard height of plenum box I standard spigot diameter I 1 lateral spigot I Order details 01 - Plenum box SK = Plenum box, square design 02 - Model R = for round air diffusers with round diffuser support 03 - Air diffuser (must be ordered separately) 11 = suitable for DQF-... 04 - Type of air...

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Specification texts Ceiling swirl diffuser type DQF-Q-... for square supply and return air models. Especially suitable for use in comfort rooms with a high air change rate and for VAV installations with variable volumetric flows (between 40 and 100%). Consisting of square faceplate made of sheet steel, with integrated fixed air deflection blades. For use up to -14 K. Sophisticated design allows easy cleaning to VDI 6022. Product: SCHAKO type DQF-Q-... - with round faceplate. Product: SCHAKO type DQF-R-... Air throw: - Supply air (-Z) - Return air (-A) Nominal size: - NW310 (-310) - NW400...

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