7030 & 7040 – Acoustic Wall-Mounted Louvres
Features
- Ventilation inlet and acoustic insulation
- Ideal for limiting noise generation from compressor
houses, pump houses, turbine rooms, generator
rooms, etc. - Modular units, available in standard size or
customised size - Factory or site assembled
- Maintenance free
7030 and 7040 are acoustic half chevron louvres that can be assembled in modular units. The 7030 louvre unites aerodynamic and acoustic performance with an important free area. The 7040 is a high acoustic performance louvre, with moderate free area and important quantity of acoustic material.
7030: Medium to High Performance Louvre
- Depth: 600 mm
- Blades height: 150 mm
- Blades pitch: 300 mm
- Any combination of height and width is possible (mullion above 2000 mm wide)
- Insulation: Rockwool 80 kg/m3
- Material: Aluminium, ZincAlume or Galvanised
- Colours: Standard Chromadek©, Standard COLORPLUS©, Standard RAL
- Bird mesh as an optional extra
(25 mm x 13 mm x 1.6 mm)
7040: High Performance Louvre
- Depth: 600 mm
- Blades height: 235 mm
- Blades pitch: 335 mm
- Any combination of height and width is possible (mullion above 2000 mm wide)
- Insulation: Rockwool 80 kg/m3
- Material: Aluminium, ZincAlume or Galvanised
- Colours: Standard Chromadek©, Standard COLORPLUS©, Standard RAL
- Bird mesh as an optional extra
(25 mm x 13 mm x 1.6 mm)
Standard Louvre Heights
| Number of Intermediate Blades | 7030 Standard Height (mm) |
| 2 | 1400 |
| 3 | 1700 |
| 4 | 2000 |
| 5 | 2300 |
| 6 | 2600 |
| 7 | 2900 |
Standard Louvre Heights
| Number of Intermediate Blades | 7040 Standard Height (mm) |
| 2 | 1189 |
| 3 | 1524 |
| 4 | 1859 |
| 5 | 2194 |
| 6 | 2529 |
| 7 | 2864 |
Standard heights show maximum free inlet area, however louvres can be manufactured to suit any opening dimension.
Acoustic Performances
| Frequency (Hz) | 7030 | 7040 |
| Noise Reduction (dB) | Noise Reduction (dB) | |
| 63 | 8 | 12.5 |
| 125 | 15.5 | 24 |
| 250 | 18 | 24 |
| 500 | 26 | 31.5 |
| 1000 | 35.5 | 36.5 |
| 2000 | 37 | 39.5 |
| 4000 | 33 | 34 |
Tests were carried out in accordance with ASTM E336-67T, section A2.3, “Test procedure for measuring transmission loss in non-laboratory type configuration”. The field transmission loss is determined as specified in section A2.3 E.336, and is defined as follows: FTL = NR-6.
Content Updated: 12/16