Spiro-SAFE premium silencer diameter 125 mm - length 900 mm (100 mm insulation)

Spiro-SAFE premium sound attenuator diameter 125 mm - length 900 mm (100 mm insulation)

The Spiro-SAFE premium sound attenuator diameter 125 mm - length 900 mm (100 mm insulation) is a circular ventilation sound attenuator made of galvanized steel, specifically designed for use in ventilation and air handling ducts. This attenuator is engineered to effectively reduce noise generated by airflow and mechanical fans, ensuring that sound levels in living spaces and technical rooms remain within acceptable limits. The connection of the sound attenuator features male (spigot) connections on both ends, each equipped with an integrated double EPDM lip seal, providing an airtight and reliable connection to round ventilation ducts.

Practical information

Sound absorption is achieved through glass wool located between the inner and outer casing of the attenuator. Depending on the model, the wool thickness is 50 mm or 100 mm for the PREMIUM-100. The mineral wool is flexible, cut from roll material, allowing it to conform well to the shape of the attenuator and ensuring uniform sound attenuation along the entire length of the product. This guarantees consistent noise reduction, even with variable airflow and smaller duct dimensions.

The outer casing is manufactured from high-quality galvanized steel to ensure durability and reliability, providing a robust and corrosion-resistant finish.

The construction is solid and functional, with a sturdy outer casing that withstands mechanical stresses during installation and use. The product code clearly indicates the type of attenuator, insulation thickness, duct diameter (Ød1), and attenuator length, simplifying the selection of the correct attenuator for any ventilation project, ranging from residential buildings to complex commercial installations.

Why is the premium variant better than the standard version?

The premium sound attenuator offers several advantages over the standard version that make it better suited for certain applications:

1. Wool thickness: The premium attenuator uses 100 mm thick mineral wool cut from rolls. This allows the insulation to better conform to the interior shape of the attenuator, resulting in more uniform sound attenuation.
2. Central core: From diameter 315 onwards, premium attenuators are equipped with a central core. This core directs air through a perforated inner tube, increasing the contact between sound waves and the absorption layer, thereby more effectively attenuating mid and high frequencies.
3. More uniform noise reduction: The combination of flexible insulation, excellent sealing, and well-thought-out construction enables the premium variant to provide more consistent noise reduction across a wide frequency range. In contrast, the standard variant may show less uniform attenuation, particularly at lower frequencies.