Spiro-SAFE silencer diameter 160 mm - length 1200 mm (50 mm insulation)

Spiro-SAFE Sound Attenuator Diameter 160 mm - Length 1200 mm (50 mm Insulation)

The Spiro-SAFE sound attenuator diameter 160 mm - length 1200 mm (50 mm insulation) is a circular sound attenuator made from galvanised steel, available in various diameters and lengths. It is used in ventilation and air handling systems to reduce noise transmission through ductwork. The attenuator is designed to effectively dampen the noise generated by fans and air flow, ensuring a comfortable noise level in occupied spaces. 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 160 mm - length 1200 mm (50 mm insulation) is achieved by mineral wool located between the inner and outer casing. Depending on the variant, the wool thickness is either 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 from high-quality galvanised 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 noise reduction performance, and reliable operation across a variety of ventilation projects.

Thanks to the circular shape and smooth inner surface, the attenuator causes low pressure losses in the ventilation system. This is important to prevent fans from being overburdened or consuming extra energy. The attenuator can be used in both supply and extract air ducts.

Why Is the Premium Variant Better Than the Standard Variant?

The premium sound attenuator offers several advantages over the standard one that make it more suitable for certain applications:

1. Wool Thickness: The premium attenuator uses 100 mm thick mineral wool cut from a roll. This enables the insulation to better conform to the inner shape of the attenuator, resulting in more uniform sound attenuation.
2. Central Core: From diameter 315 upwards, premium attenuators feature a central core. The core ensures that air flows through a perforated inner tube, increasing contact between sound waves and the absorption layer. This particularly improves attenuation of mid and high frequencies.
3. More Uniform Sound Reduction: The combination of flexible insulation, good fit, and thoughtful construction ensures the premium variant delivers more consistent sound reduction across a broad frequency range. The standard variant’s sound reduction can be less uniform, especially at lower frequencies.