Spiro-SAFE silencer diameter 125 mm - length 600 mm (50 mm insulation)

Spiro-SAFE Noise Attenuator Diameter 125 mm - Length 600 mm (50 mm Insulation)

The Spiro-SAFE noise attenuator with a diameter of 125 mm and length of 600 mm (50 mm insulation) is a round silencer made from galvanized steel, available in various diameters and lengths. It is used in ventilation and air handling systems to reduce noise transmission through air ducts. The attenuator is designed to effectively dampen fan and airflow noise, ensuring comfortable sound levels in occupied spaces. It can be directly integrated into ventilation ducts and is suitable for both residential and commercial buildings.

Practical Information

Noise absorption in the Spiro-SAFE noise attenuator diameter 125 mm - length 600 mm (50 mm insulation) is achieved by mineral wool located between the inner and outer casing. Depending on the version, 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 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 to withstand mechanical stresses during installation and use. This ensures a long service life, excellent noise reduction performance, and reliable operation across various ventilation projects.

Thanks to its round shape and smooth interior, the noise attenuator causes low pressure losses in the ventilation system. This is crucial to avoid overloading fans or increasing energy consumption. The attenuator can be used in both supply and exhaust air ducts.

Why Is the Premium Variant Better than the Standard Variant?

The premium noise attenuator offers several advantages over the standard version, making it better suited for certain applications:

1. Wool Thickness: The premium noise attenuator uses 100 mm thick mineral wool cut from rolls. This allows the insulation to better conform to the inner shape of the attenuator, resulting in more uniform noise reduction.
2. Central Core: From diameter 315 upwards, the premium attenuators are equipped with a core in the centre. The central core directs air through a perforated inner tube, increasing the contact of sound waves with the absorption layer. This effectively dampens especially mid and high frequencies.
3. More Uniform Noise Reduction: The combination of flexible insulation, precise fitting, and thoughtful construction ensures the premium variant provides a more consistent noise reduction across a wide frequency range. The standard variant’s noise reduction can be less uniform, particularly at lower frequencies.