The supply or inlet grilles are realized with fixed aluminium blades, with symmetrical or oriented flow, in extruded natural or silver anodized aluminium.
Airflow vary according to efflux speed and pressure drop for any grille dimension.
Walkable loads are indicated for grilles without counter frames, resting on the T0038 stringers. Such grilles can be classified as K3 (walkable grilles suitable for installation in areas with no vehicular traffic, such as residential buildings for commercial or public purposes) according to the UNI EN 1253-2 standard and support a load of 200 daN remaining in the elastic range and from 300 daN without breaks. The C80 aluminum grilles are also available in a smaller pitch variant (better anti-heel performance) or in the rollable-belt variant.
| NOMINAL DIMENSION (WxL) | Vk | 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | P+ (daN) | ||||
| Δp | 0.4 | 1 | 2.5 | 4 | 5.5 | 7 | 8.5 | 10 | ||||||
| 600x150 | Q=m3/h | 80 | 160 | 240 | 320 | 400 | 480 | 560 | 620 | 300 | ||||
| 600x200 | 110 | 220 | 330 | 440 | 550 | 660 | 770 | 880 | 300 | |||||
| 600x300 | 160 | 320 | 480 | 640 | 800 | 960 | 1120 | 1280 | 300 | |||||
| 600x600 | 320 | 640 | 960 | 1280 | 1600 | 1920 | 2240 | 2560 | 300 | |||||
| Q =airflow (m3/h) - ∆p = pressure drop (Pa) - Vk = efflux speed (m/sec) - P = walkable load (daN) | ||||||||||||||