The double-sided clip-fixed blades of the AL-500SGB provide an STC rating of 17 dB, and are ideal for large acoustic screens with continuous blades and concealed support posts.
| Dimensions |
Depth: 500mm Height: Minimum 150mm, No Maximum Height Width: Minimum 300mm, No Maximum Width |
| Blade Centres |
150mm |
| Rain Defence Performance (BS/EN 13030:2001) |
Class B - up to 0.5m/s suction velocity Class C - up to 1.5m/s suction velocity Class D - up to 3.5m/s suction velocity |
| Aerodynamic Performance (BS/EN 13030:2001) |
Air Inlet: 0.192, Class 4 Air Extract: 0.207, Class 3 |
| Sound Reduction Index (ISO 10140-2) | Frequency (Hz) | One-third Octave (dB) |
| 50 Hz | 10.1 dB 63 Hz | 6.2 dB 80 Hz | 6.6 dB 100 Hz | 7.7 dB 125 Hz | 6.9 dB 160 Hz | 7.0 dB 200 Hz | 7.2 dB 250 Hz | 7.8 dB 315 Hz | 8.0 dB 400 Hz | 10.6 dB 500 Hz | 12.3 dB 630 Hz | 13.7 dB 800 Hz | 14.8 dB 1000 Hz | 17.0 dB 1250 Hz | 19.1 dB 1600 Hz | 20.3 dB 2000 Hz | 23.1 dB 2500 Hz | 24.3 dB 3150 Hz | 24.3 dB 4000 Hz | 22.4 dB 5000 Hz | 21.8 dB |
|
| Geometric Free Area (active blades only) | 30% |
| Surface Finish Options |
Powdercoated Anodised Raw Aluminium (Mill) |
| Perimeter Frame Options |
Frameless |
