Spiro-SAFE silencer diameter 150 mm - length 900 mm (50 mm insulation)

Spiro-SAFE sound attenuator diameter 150 mm - length 900 mm (50 mm insulation)

The Spiro-SAFE sound attenuator diameter 150 mm - length 900 mm (50 mm insulation) is a round sound attenuator, a ventilation accessory made from galvanized steel, available in various diameters and lengths, used in ventilation and air handling systems to reduce sound transmission through air ducts. The attenuator is designed to effectively dampen noise from fans and airflow, ensuring that noise levels in occupied spaces remain comfortable. It can be directly integrated into ventilation ducts and is suitable for both residential and commercial buildings.

Practical information

The sound absorption of the Spiro-SAFE sound attenuator diameter 150 mm - length 900 mm (50 mm insulation) is achieved through mineral wool positioned between the inner and outer casing. Depending on the version, the wool thickness is 50 mm or 100 mm. The mineral wool complies with fire class A1 according to EN 13162, meaning the material is completely non-combustible.

The outer casing is made of high-quality galvanized steel to ensure durability and reliability, providing a robust and corrosion-resistant finish. The construction of the standard attenuators is sturdy and functionally designed. The walls are solidly formed and resistant to mechanical stress during installation and use. This results in a long service life, excellent sound reduction performance, and reliable operation in various ventilation projects.

Due to its round shape and smooth interior, the sound attenuator causes low pressure losses in the ventilation system. This is crucial to prevent fans from being overburdened or consuming extra energy. The attenuator can be applied in both supply and exhaust air ducts.

Why is the premium variant better than the standard variant?

The premium sound attenuator has several advantages over the standard attenuator, making it better suited for specific applications:

1. Wool thickness: The premium sound attenuator uses 100 mm thick mineral wool cut from rolls. This ensures the insulation better conforms to the inner shape of the attenuator, providing a more uniform sound attenuation.
2. Central core: Starting from diameter 315, the premium attenuators are equipped with a central core. The core ensures that the air flows through a perforated inner tube, allowing sound waves greater contact with the absorption layer. This results in more effective attenuation of mid and high frequencies.
3. More uniform sound reduction: The combination of flexible insulation, good fitting, and thoughtful construction ensures the premium variant provides a more consistent sound reduction across a wide frequency range. The standard variant’s sound reduction can be less uniform, especially at lower frequencies.