


effective attenuation across a wide frequency range (EN ISO 7235)
Aerodynamic design with optimized pressure loss and high mechanical robustness
A1 (M0), certified 400°C / 2 h for air velocities within the airflow passages up to 14 m/s.
SONIE BS
- Rectangular
- Standard acoustic baffle for HVAC ductwork



Description
The SONIE BS is a standard acoustic splitter designed for ventilation and air handling ductwork. It reduces noise generated by ventilation and air distribution systems.
It is certified for 400°C/2h operation and suitable for air velocities of up to 14 m/s through the airflow passages.
Characteristics
- Reinforced galvanized steel frame
- Aerodynamic rounded leading edge
- Ribbed construction for enhanced mechanical strength
- Monobloc rock wool infill
- Density: 40 kg/m³ ±10%
- Reaction to fire: Class A1
- 400°C/2h certified for air velocities up to 14 m/s
- Anti-fibre erosion fiberglass veil
- Available in 50, 100, 150, 200 and 300 mm thicknesses
Performances
Acoustic performance
- Tested in an independent laboratory in accordance with EN ISO 7235
- Excellent attenuation performance across a wide frequency range
Pressure loss
- The rounded frame profile can reduce pressure losses by up to 30% compared with a straight-edge profile in certain configurations
Mechanical robustness
- High-strength steel frame ensuring stability, long service life, and proven mechanical performance validated through testing
Fire resistance
- certified for operation at 400°C for 2 hours with air velocities within the airflow passages of up to 14 m/s, in accordance with the test report
Applications
- Commercial HVAC systems
- Air handling units (AHUs)
- Industrial ductwork systems
- Plant rooms and technical areas
- Fire-rated ventilation installations
- Noise attenuation in ventilation ductwork
Options
Materials
- 304L stainless steel
- 316L stainless steel
- Aluminium
- Painted steel
Sheet thicknesses
- 1.0 mm
- 1.2 mm
- 1.5 mm
Specific options
- Frame drain holes
- Upper and lower guide rails
- Reinforcements according to dimensions
- V-shape inlet profile and trailing-edge profile
effective attenuation across a wide frequency range (EN ISO 7235)
Aerodynamic design with optimized pressure loss and high mechanical robustness
A1 (M0), certified 400°C / 2 h for air velocities within the airflow passages up to 14 m/s.
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