Spiro-SAFE Silencer Diameter 450 mm - Length 1200 mm (100 mm Insulation)

Spiro-SAFE Silencer Diameter 450 mm - Length 1200 mm (100 mm Insulation)

The Spiro-SAFE silencer with a diameter of 450 mm and length of 1200 mm (100 mm insulation) is a round ventilation silencer made of galvanized steel, specifically designed for use in ventilation and air handling ductwork. This silencer is engineered to effectively reduce noise generated by airflow and mechanical fans, ensuring that sound levels in occupied and technical spaces remain within acceptable limits.
The silencer features a male connection (insertion end) with an integrated double EPDM lip seal on both sides, 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 shells of the silencer. Depending on the model, the wool thickness is 50 mm or 100 mm for the PREMIUM-100 version. The mineral wool is flexible and cut from roll material, allowing it to conform well to the silencer’s shape 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 shell is manufactured from high-quality galvanized steel to ensure durability and reliability, providing a robust and corrosion-resistant finish.

The construction is sturdy and functional, featuring a strong outer casing designed to withstand mechanical stresses during installation and operation. The product code clearly indicates the type of silencer, insulation thickness, duct diameter (Ød1), and silencer length, making it easy to select the correct silencer for any ventilation project, from residential installations to complex commercial applications.

Why Is the Premium Variant Better Than the Standard?

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

1. Wool Thickness: The premium silencer uses 100 mm thick mineral wool cut from roll material. This allows the insulation to better conform to the internal shape of the silencer, providing a more uniform sound attenuation.
2. Central Core: Starting from diameter 315, the premium silencers include a central core. This core directs airflow through a perforated inner tube, increasing the contact of sound waves with the absorption layer. This especially enhances the attenuation of mid and high frequencies.
3. More Uniform Sound Reduction: The combination of flexible insulation, effective sealing, and thoughtful design ensures the premium variant provides more consistent noise reduction across a wide frequency range. In contrast, the standard variant may offer slightly less uniform attenuation, particularly at lower frequencies.