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Displacement Flow Diffusers

Prevent air turbulence and thus drafts.


Application of Displacement Flow Diffusers

TROX Quellluftdurchlässe können im Wandbereich oder platzsparend im Raum integriert werden. TROX Displacement Flow Diffusers can be integrated into wall areas or as columns in a room to save space.

Displacement flow diffusers

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TROX HESCO displacement flow diffusers offer a variety of different shapes and guarantee an optimum compliance with all kinds of architectural demands. Depending on the customers’ requirements, bespoke designs supplement the large range of standard versions.

The displacement flow diffusers provide optimum comfort conditions combined with excellent acoustics and a uniform velocity profile over the entire outlet.

Special geometrically arranged plastic nozzles with integral air deflectors scoops guarantee that no maintenance is required.

Simple and quick selection and design of displacement flow diffusers is possible with the TROX design program “Easy Product Finder”.
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Type QLE · QLF

  • These two types are notable for their flat, space-saving construction and feature an elegant face construction.
  • Depending on the degree of activity of the persons in the occupied zone, the supply air can enter the space with a temperature difference of -1K to -6K in relation to the room air.


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rectangular

10 – 1,025 l/s
40 – 3,700 m³/h
24 – 2,177 cfm

L: 300 – 1,500 mm
H: 150 – 2,000 mm

Type QLI

  • Displacement flow
  • End mounted side entry spigot for fresh air
  • Heat exchanger vertically mounted with condensate drip tray for low chilled water temperatures

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rectangular

primary air:
4 – 50 l/s
14 – 180 m³/h

W: 900; 1200 and 1500 mm
H: 730 mm
D: 200 mm

Cooling capacity up to 1100 W
Heating capacity up to 1730 W

Type QLV

  • This displacement flow diffuser’s multi-cornered design is unique.
  • It is available in a 90° model for corner installation, a 180° model for wall installation and a 360° model as a freestanding “column”.

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90°; 180° and 360°

17 – 1,165 l/s
60 – 4,200 m³/h
35 – 2,470 cfm

Spigot 160 – 630 mm
B: 240 – 750 mm
H: 500 – 1,750 mm

Type QLW-AZ

  • With the TROX combination displacement air diffuser type QLW-AZ air is supplied and extracted through a single element in the wall.
  • The optional cross-talk sound attenuator effectively suppresses the transmission of sounds from room to room.


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rectangular

14 – 42 l/s
50 – 150 m³/h
30 – 89 cfm

L: 600 – 1,200 mm
H: 250 mm

Type QSH · ISH

  • TROX displacement flow diffusers type QSH/ISH are primarily used in industrial manufacturing and installed as free hanging units.
  • They can be adjusted individually for any temperature range.


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circular

195 – 2,220 l/s
700 – 8,000 m³/h
415 – 4,706 cfm

Ø 250 – 560 mm

Downloads Group Type Ident-No. Type / Size
         
Displacement flow diffusers Displacement Flow Diffusers Technical Leaflet L-08-1-04e PDF / 1.7 MB 

News

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Opportunities in the Grilles & Diffuser Market

TROX discusses the threats and opportunities for grille and diffuser manufacturers.
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Installation Examples

Unilever House

Unilever House

TROX installed over 600 fan coil units in this imposing building on the banks of the River Thames.
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Contact

Thetford Main Offices Small

TROX UK Ltd

Caxton Way, Thetford
Norfolk IP24 3SQ
Tel: +44 (0)1842 754545
Contact and locations