Louver & Enclosure
Conventional louvers: rainproof / decoration / sand-trap & filter / fireproof, used for air inlets/outlets and facade openings.
Acoustic louvers: maintain ventilation while reducing sound transmission; commonly used for cooling tower and M&E equipment noise control (hotels, data centers, equipment rooms, etc.).
Fireproof louvers: fusible link / interlock closure under fire conditions, meeting smoke/flame blocking requirements while maintaining operational ventilation (as applicable).
Acoustic louvers: ASTM E90-09 (sound transmission loss / acoustical performance). Provide professional acoustic calculations and ventilation pressure loss calculations.
Fireproof louvers: submit test/listing basis per project fire rating requirement; brochure indicates FRL90 (~90 minutes) type.
Structural & aerodynamic: provide wind-load/pressure-loss data and installation details for approval and coordination.
1）Acoustic louvers
Noise reduction: tested to ASTM E90-09; brochure shows typical acoustic ratings around STC10–STC26 (depends on model/depth).
Ventilation & airflow: maintain required airflow while reducing sound transmission; provide acoustic calculations + ventilation pressure loss calculations.
Product forms: linear / wing-curved options; acoustic louver doors can be provided for opening applications (customized per project needs).
2）Fireproof louvers
Fire rating: brochure indicates FRL90 (~90 minutes); fusible trigger temperature about 74°C.
Interlock: electrical interlock linked with the fire alarm system (as described).
3）Conventional louvers (Rainproof/Decoration/Sand Trap/Filter)
Functional selection: rainproof / decoration / sand-trap / filter per application; support services per brochure.
Product certifications: triple certified products described as AMCA / BSRIA / CE.
Acoustic louvers: provide ASTM E90-09 test reports (consistent with selected model and configuration).
Rainproof / sand-trap / filter: AMCA test reports available per selected type.
Structural & installation support: provide professional calculations and drawings (acoustic calculations, pressure loss, mechanical/structural calculations, detailed node drawings, etc.).
Data center / equipment room noise control: case applications of acoustic louver systems for noise reduction.
Hotel / cooling tower noise control: acoustic louver solutions for cooling tower & M&E areas.
Large projects in Middle East / Africa: commonly delivered as combination of acoustic louvers + conventional louvers (rainproof / sand-trap / filter).