Application
Special characteristics
Nominal sizes
Other dimensions upon request
Variants
Blade construction style
Parts and characteristics
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 | 245 × 95 to 1245 × 445 mm |
Minimum volume flow rate | 10 – 410 l/s or 36 – 1476 m³/h |
Maximum volume flow rate, with LWA max. 40 dB(A) without attachments | 55 – 1235 l/s or 198 – 4446 m³/h |
Supply air to room air temperature difference | –12 to +4 K |
Volume flow rates apply to supply air
EF, geometric free area
95 | 0.015 | 0.021 | 0.028 | 0.034 | 0.040 | 0.052 | 0.064 | 0.076 |
145 | 0.022 | 0.031 | 0.040 | 0.049 | 0.058 | 0.075 | 0.093 | 0.111 |
245 |
| 0.050 | 0.065 | 0.080 | 0.094 | 0.121 | 0.151 | 0.180 |
345 |
|
| 0.090 | 0.110 | 0.130 | 0.168 | 0.208 | 0.249 |
445 |
|
|
|
| 0.166 | 0.215 | 0.266 | 0.318 |
EF-G, geometric free area
95 | 0.018 | 0.025 | 0.033 | 0.040 | 0.047 | 0.061 | 0.076 | 0.090 |
145 | 0.026 | 0.037 | 0.047 | 0.058 | 0.069 | 0.089 | 0.110 | 0.131 |
245 |
| 0.060 | 0.077 | 0.095 | 0.112 | 0.145 | 0.179 | 0.214 |
345 |
|
| 0.107 | 0.131 | 0.155 | 0.201 | 0.249 | 0.297 |
445 |
|
|
|
| 0.198 | 0.256 | 0.318 | 0.379 |
× LWA = 40 dB(A) with unrestricted airflow+ LWA = 40 dB(A) with airflow restricted by 50 %
Ventilation grille cores, rectangular, made of aluminium, for supply and extract air.
Ready-to-install component which consists of fixed horizontal blades, two lateral mullions, and possibly a vertical centre mullion (depending on length).
Preferably for installation into an installation subframe provided by others.
Sound power level of the air-regenerated noise measured according to EN ISO 5135.
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.
|
|
Order example: EF-G-0/645×245
Blade pitch | 16.7 mm |
Blade construction style | 0° |
Nominal size | 645 × 245 mm |
Exposed surface | Anodised, E6-C-0, natural colour |
The weight table shows the available nominal sizes
EF
95 | 0.3 | 0.5 | 0.6 | 0.7 | 0.9 | 1.2 | 1.4 | 1.7 |
145 | 0.5 | 0.7 | 1.0 | 1.2 | 1.4 | 1.8 | 2.3 | 2.7 |
245 | 0.9 | 1.3 | 1.7 | 2.0 | 2.4 | 3.1 | 3.9 | 4.6 |
345 | 1.3 | 1.8 | 2.4 | 2.9 | 3.4 | 4.5 | 5.5 | 6.6 |
445 | 1.7 | 2.4 | 3.1 | 3.7 | 4.4 | 5.8 | 7.2 | 8.5 |
EF-G
95 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1.0 | 1.2 |
145 | 0.4 | 0.5 | 0.7 | 0.9 | 1.0 | 1.3 | 1.6 | 2.0 |
245 | 0.7 | 0.9 | 1.2 | 1.5 | 1.8 | 2.3 | 2.9 | 3.4 |
345 | 1.0 | 1.4 | 1.7 | 2.1 | 2.5 | 3.3 | 4.1 | 4.9 |
445 | 1.2 | 1.8 | 2.3 | 2.8 | 3.3 | 4.3 | 5.3 | 6.3 |
Installation and commissioning
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)
Share page
Rekommendera denna sida
Rekommendera denna sida ved att senda en link på mail.
Dela sidan
Tack för din rekommendation!
Din rekommendation har skickats och bör anlända inom kort tid.
Kontakt
Vi är här for dig
Vänligen skriv ditt meddelande och ärende
Kontakt
Tack for ditt meddelande!
Ditt meddelande har skickats och kommer att behandlas inom kort tid. Vår serviceavdelning återkommer til dig så snart vi har möjlighet.
Kontakt
Vi är här for dig
Vänligen skriv ditt meddelande och ärende
Kontakt
Tack for ditt meddelande!
Ditt meddelande har skickats och kommer att behandlas inom kort tid. Vår serviceavdelning återkommer til dig så snart vi har möjlighet.