Storax Acoustic Louvre ST-448-150

Storax acoustic ventilation grilles provide optimal airflow and acoustic performance. The wall grilles comply with the standards of the Dutch Building Decree and are the solution for creating a closed façade. The acoustic grille is made from aluminum profiles and available in all RAL colors or anodized finishes. The slats are fitted with acoustic damping material (non-combustible mineral wool). Easy and invisible installation in the wall opening.

Specification

Material Made from aluminum profiles AlMgSi 0.5 (according to EN 12020-2) Acoustic damping material: non-combustible mineral wool Standard stainless steel mesh 304 – 6 x 6 mm 100% stainless Finish: natural or bronze anodized (20 micron) or powder-coated in all possible RAL, Sikkens, NCS, and Interpon colors (60–80 micron) Dimensions Slat pitch: 150 mm Minimum dimensions: – 250W x 410H Height increments: 150 mm Installation depth: – 143 mm Frame flange: 55 mm Mounting Wall anchor: mounting with a wall anchor, two positions available depending on wall thickness Screws: screwed from the outside through the frame flange (via standard or custom drill pattern) Sealing Options PU sealing strip: against water infiltration (PU sealing strip option) Silicone sealing: the outer frame flange can be sealed with silicone all around (Silicone option) Specifications ST-448-150 Technical Data Airflow: (According to EN 13030) K-factor (intake): 16.00 K-factor (exhaust): 21.24 Ce coefficient: 0.250 Cd coefficient: 0.217 Comfort: (According to EN ISO 140-10, EN ISO 717-1) Sound attenuation in open position Rw(C;Ctr): 11 (-1;-2) dB Visual free area: 54% Physical free area: 34% Water tightness: Class B (0 m/s) Slat spacing: 150 mm Weight per m²: approx. 22 kg Sound Attenuation per Frequency Frequency (Hz) Attenuation (dB) 63 7.1 125 4.5 250 4.0 500 6.3 1000 12.3 2000 13.5 4000 12.1

Technical specification