SONIE GNB

Acoustic ventilation louvre

The SONIE GNB is an acoustic ventilation louvre designed to reduce noise generated by ventilation systems while providing air intake or exhaust. Available in single- or double-bank configurations, it combines excellent acoustic performance, weather protection and an attractive appearance thanks to its aerodynamic blade design.

Characteristics

• Single or double acoustic louvre
• Thickness: 150 mm or 300 mm
• 1.2 mm galvanized steel frame
• 1 mm galvanized steel blades
• Rounded blade profile
• Clean architectural design
• One-piece non-hygroscopic mineral wool insulation
• 24 kg/m³ mineral wool protected by glass veil and expanded metal
• Integrated bird screen
• Large dimensions achieved by combining modules
• Mounting angle frames supplied
• Available in stainless steel 304L, stainless steel 316L or painted steel (RAL colours)

Performances

Acoustics

• Excellent acoustic performance (ISO 7235)
• Sound reduction index up to Rw 16 (-1;-4) for the double version (ISO 15186-1)

Weather resistance (EN 13030)

• Class B at 0 m/s
• Class C up to 1 m/s
• Class D from 1.5 m/s
• Air entry coefficient Ce = 0.293 (Class 3)

Pressure loss

• Aerodynamic blade profile minimizes pressure loss

Applications

• Commercial building ventilation
• Building façades with technical openings
• Air handling units (AHUs)
• Chillers
• Data centres
• Industrial facilities
• Hospitals
• Technical rooms
• Boiler rooms
• Outdoor HVAC equipment
• Acoustic enclosures

Options

Materials

• Stainless steel 304L
• Stainless steel 316L
• Painted steel (standard RAL colours)

Construction

• Single version, 150 mm
• Double version, 300 mm

Large dimensions

• Multi-module construction