The new X-GRILLE Cover ventilation grilles, made of high-quality aluminium combine function with an attractive design; they can be installed in walls, sills or rectangular ducts.
Optional equipment and accessories
Application
Special characteristics
Nominal sizes
Single grille
Horizontal run section
Other dimensions upon request
Variants
Fixing
VS, KF only with installation subframe
Parts and characteristics
Attachments
Accessories
Construction features
Materials and surfaces
Standards and guidelines
Maintenance
Functional description
Ventilation grilles are air terminal devices for the supply air and extract air of ventilation and air conditioning systems. They direct the supply air into the room. Ventilation grilles with adjustable blades allow for adapting the discharge direction to the local conditions. The result is a mixed flow ventilation in comfort zones and industrial zones, with good overall room ventilation.
Induction slows the airflow down, i.e. the airflow velocity decreases as the distance from the grille increases. The distance at which the airflow velocity reaches a certain defined value, e.g. 0.2 m/s, is called throw distance. The supply air jet from wall grilles that are installed near the ceiling achieves a larger throw distance than a free jet (from a grille that is not installed near the ceiling). Single grilles, groups of grilles and continuous horizontal runs all achieve different throw distances.
In cooling mode it is necessary to take account of the jet deviation towards the occupied zone, which increases as the supply air to room air temperature difference increases and the discharge velocity decreases. In heating mode the supply air jet deviates towards the ceiling. This has no negative effect on the airflow velocity in the occupied zone, but it may affect the complete ventilation of the room.
Nominal sizes | 225 × 125 to 1225 × 525 mm |
Horizontal run section | H: 125, 225, 325 mm |
Minimum volume flow rate | 16 – 568 l/s or 58 – 2045 m³/h |
Maximum volume flow rate, with LWA max. 40 dB(A) without attachments | 97 – 2651 l/s or 350 – 9544 m³/h |
Supply air to room air temperature difference | –12 to +4 K |
Volumen flow rates for single grille for supply air.
Geometric free area
125 | 0.013 | 0.019 | 0.026 | 0.032 | 0.039 | 0.050 | 0.063 | 0.076 |
225 | 0.021 | 0.032 | 0.042 | 0.053 | 0.063 | 0.081 | 0.102 | 0.123 |
325 | 0.051 | 0.068 | 0.085 | 0.102 | 0.131 | 0.165 | 0.199 | |
425 | 0.093 | 0.117 | 0.141 | 0.180 | 0.228 | 0.275 | ||
525 | 0.149 | 0.179 | 0.230 | 0.290 | 0.350 | |||
× LWA = 40 dB(A) with unrestricted airflow+ LWA = 40 dB(A) with airflow restricted by 50 %
Ventilation grilles, rectangular, made of high-quality aluminium, for supply and extract air. Function combined with an attractive design. Front border with horizontal clip-fixed cover plates. Preferably for wall and sill installation but also suitable for rectangular ducts.
Ready-to-install component which consists of a border and symmetrically and aerodynamically profiled, horizontal blades with a concealed linkage that allows for adjusting the blades simultaneously.
Special characteristics
Materials and surfaces
Technical data
Sizing data
Air-regenerated noise
This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.
Life cycle assessment
A life cycle assessment is available for the product series in form of an Environmental Product Declaration (EPD) that has been checked and published by a programme holder.
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Order example: X-Grille-Cover-AG/525×225/B1/VS
Attachments | Damper unit, opposed action blades |
Nominal size | 525 × 225 mm |
Installation subframe | With installation subframe |
Fixing | Concealed screw fixing |
Surface (border and blades) | RAL 9005, jet black, gloss level 70 % |
Surface finish - cover plates | RAL 9006, white aluminium, gloss level 30% |
Order example: X-Grille-Cover-E-R-AG/1025×225/D1/VS
Section | End section |
End section | Right end section |
Attachments | Damper unit, opposed action blades |
Nominal size | 1025 × 225 |
Installation subframe | For end section |
Fixing | Concealed screw fixing |
Surface (border and blades) | RAL 9005, jet black, gloss level 70 % |
Surface finish - cover plates | RAL 9006, white aluminium, gloss level 30% |
The weight table shows the available nominal sizes
X-GRILLE Cover, single grille
125 | 0.4 | 0.6 | 0.7 | 0.9 | 1.0 | 1.7 | 2.1 | 2.5 |
225 | 0.6 | 0.9 | 1.1 | 1.3 | 1.5 | 2.3 | 2.9 | 3.4 |
325 | 1.1 | 1.4 | 1.7 | 2.0 | 3.0 | 3.6 | 4.3 | |
425 | 1.9 | 2.3 | 2.7 | 3.9 | 4.7 | 5.6 | ||
525 | 2.7 | 3.2 | 4.5 | 5.5 | 6.5 | |||
Weights apply to ventilation grilles without attachments
X-GRILLE Cover, continuous horizontal run
125 | 2.0 | 4.0 |
225 | 2.8 | 5.6 |
325 | 3.5 | 7.0 |
Middle section M: 2000 mm
End section E: 950 – 2025 mm in increments of 1 mm
Weights apply to sections without attachments
Nominal length over 625 mm: with vertical centre mullionNominal height over 225 mm: with horizontal centre mullion
Installation and commissioning
These are only schematic diagrams to illustrate installation details.
Attachments -AG, -DG and Types AGW, DGW
Volume flow rate balancing
When several ventilation grilles are installed on the same duct, it may be necessary to balance the volume flow rates.
Air pattern
Principal dimensions
L [mm]
Nominal length of the ventilation grille
H [mm]
Nominal height of the ventilation grille
m [kg]
Weight
Nomenclature
LWA [dB(A)]
Sound power level of the air-regenerated noise
V [m³/h] and [l/s]
Volume flow rate
Δpt [Pa]
Total differential pressure
lS [m]
Distance from single grille or horizontal run section (throw distance)
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Kontakt
Tu smo za vas
Navedite svoju poruku i vrstu zahtjeva
Tel.: +385 1 61 55 401 | +385 1 61 58 598
Kontakt
Zahvaljujemo na vašoj poruci!
Vaša je poruka poslana i ubrzo će biti obrađena.
Naš odjel za servisne zahtjeve što skorije će vas kontaktirati.
Za opća pitanja u vezi s proizvodima ili uslugama možete i nazvati:
Tel.: +385 1 61 55 401 | Faks: +385 1 61 58 598
Type
Attachments
Nominal size [mm]
Installation subframe
Fixing
Surface (border and blades)
Surface finish - cover plates
