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Displacement air diffuser QA Description The SCHAKO displacement air diffuser is ideal for industrial plants and laboratories which produce large amounts of hazardous substances. The supply air enters the room at a low velocity with a temperature difference of max -4 K in the cooling mode. The contaminated air is displaced by the low induction air flow. If the displacement air diffusers are used at floor level, the supply air spreads out across the floor and is directed upwards by the convection flow from heat sources. The return air should ideally be at high level when using displacement air...

Displacement air diffuser QA Smoke test Displacement air diffuser type QA-H-0600-0750-... Cooling mode VZU = 900 m3/h (resp. 250 l/s) Construction subject to change.

Displacement air diffuser QA Models and dimensions Dimensions QA-V, 90° throw Available sizes QA-R all sizes in 2 pieces around the circumference Depending on the size, the length is in one or two pieces (see p. 6) 1.) ring with toggle-type fastener Filter can be replaced by opening the toggle-type fastener Construction subject to change.

Dimensions of accessories Rubber lip seal (-GD1) Detail Q Size Construction subject to change.

Displacement air diffuser QA Technical data Pressure loss and noise level QA-R-0300-1000-... Correction factor for volumetric flow Correction factor for pressure loss 03/01 - 7 Construction subject to change. Version: 01.10.2019 No return possible!

Correction factor for pressure loss Construction subject to change.

Correction factor for pressure loss Correction factor for volumetric flow 03/01 - 9 Construction subject to change. Version: 01.10.2019 No return possible!

Correction factor for pressure loss Correction factor for volumetric flow 03/01 - 10 Construction subject to change. Version: 01.10.2019 No return possible!

Construction subject to change.

Displacement air diffuser QAMaximum end velocity of jet qa-v-0400-... Diagrams are valid up to a mounting height of 0.25 m from the bottom edge of the displacement air diffuser. Isothermal L = 750 Correction factor for length Construction subject to change.

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Displacement air diffuser QA Temperature ratios Diagrams are valid up to a mounting height of 0.25 m from the bottom edge of the displacement air diffuser. QA-V-0250-... 03/01 - 18 Construction subject to change. Version: 01.10.2019 No return possible!

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Supply air volume Pressure loss Density A-weighted sound power level horizontal throw Correction factor Maximum end velocity of jet Temperature ratio (TV = ATx / ATq ) Temperature difference between supply air temperature and room temperature (ato = tzu - tR) Temperature difference at point x Length Supply air temperature Room temperature Construction subject to change.

Displacement air diffuser QA Order code QA 01 Sample QA-R-0300-1000-SV-9010-GD0-DV0 Displacement air diffuser type QA I cylindrical, 360° throw for mid-room installation I nominal width 300 mm I length 1000 mm I galvanised sheet steel | painted to RAL 9010 | without rubber lip seal | without damper Order details 01 - Type QA = Displacement air diffuser type QA 02 - Model H = Half cylinder, 180° throw for installation on walls and columns R = Cylindrical, 360° throw for mid-room installation V = Quarter cylinder, 90° throw for installation in corners 03 - Nominal width 0250 = 0250 mm 0300 = 0300...

Displacement air diffuser QA Specification texts Displacement air diffuser with removable perforated faceplate for easy cleaning according to VDI 6022. Suitable for low-turbulence supply air introduction at low throw velocity. Consisting of a base, front casing and round connection pipe from the top made of galvanised sheet steel. To achieve even air distribution, a removable synthetic fibre filter mat is installed. The displacement air diffuser can also be provided with a high-quality powder coating in the RAL colour 9010 (white) or in a different RAL colour. - Type QA-V, 90° throw, for corner...