Spiro-SAFE silencer diameter 355 mm - length 1200 mm (100 mm insulation)

Spiro-SAFE Silencer Diameter 355 mm - Length 1200 mm (100 mm Insulation)

The Spiro-SAFE silencer with a diameter of 355 mm and length of 1200 mm (100 mm insulation) is a round ventilation silencer made from galvanized steel, specifically designed for use in ventilation and air handling ducts. This silencer is engineered to effectively reduce noise generated by airflow and mechanical fans, ensuring that sound levels in occupied spaces and technical rooms remain within acceptable limits. The silencer connections on both ends feature male (insertion) connectors with integrated double EPDM lip seals, providing an airtight and reliable connection to round ventilation ducts.

Practical Information

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

The outer casing is made 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 shell designed to withstand mechanical stresses during installation and use. The product code clearly indicates the silencer type, insulation thickness, duct diameter (Ød1), and silencer length. This makes it straightforward to select the appropriate silencer for any ventilation project, from residential buildings to complex commercial installations.

Why is the Premium Variant Better than the Standard Variant?

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

1. Wool Thickness: The premium silencer uses 100 mm thick mineral wool cut from rolls. This allows the insulation to better conform to the internal shape of the silencer, resulting in more uniform noise attenuation.
2. Central Core: From diameter 315 upwards, the premium silencers feature a central core. This core directs airflow through a perforated inner tube, increasing the contact of sound waves with the absorption layer. This is particularly effective at reducing mid and high-frequency noise.
3. More Uniform Noise Reduction: The combination of flexible insulation, secure connections, and thoughtful design means the premium version provides more consistent noise attenuation across a wide frequency range. The standard variant may exhibit slightly less uniform noise reduction, especially at lower frequencies.