Spiro-SAFE silencer diameter 560 mm - length 900 mm (100 mm insulation)

Spiro-SAFE Sound Attenuator Diameter 560 mm - Length 900 mm (100 mm Insulation)

The Spiro-SAFE sound attenuator with a diameter of 560 mm and length of 900 mm (100 mm insulation) is a round ventilation sound attenuator made from galvanized steel, specifically designed for use in ventilation and air handling ducts. This attenuator is engineered to effectively reduce noise generated by air flow and mechanical fans, ensuring that noise levels in occupied spaces and technical rooms remain within acceptable limits.
Both ends of the attenuator feature a male spigot connection 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 and cut from roll material, allowing it to conform well to the shape of the attenuator and ensure uniform noise reduction across the entire product length. This guarantees consistent attenuation even with variable airflows and smaller duct sizes.

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

The construction is solid and functional, featuring a sturdy outer casing that withstands mechanical stress during installation and use. The product code clearly conveys information about the type of attenuator, insulation thickness, duct diameter (Ød1), and attenuator length, making it easy to select the appropriate attenuator for any ventilation project, ranging from residential buildings to complex commercial installations.

Why is the Premium Variant Better Than the Standard Variant?

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

1. Wool Thickness: The premium attenuator uses 100 mm thick mineral wool cut from roll material. This allows the insulation to better conform to the inner shape of the attenuator, providing more uniform sound attenuation.
2. Central Core: Starting from diameter 315, premium attenuators include a central core. This core allows air to flow through a perforated inner tube, increasing the contact of sound waves with the absorption layer, which improves attenuation particularly for mid and high frequencies.
3. More Uniform Sound Reduction: The combination of flexible insulation, effective sealing, and thoughtful construction ensures that the premium variant offers more consistent sound attenuation across a wide frequency range. The standard variant's attenuation can be less uniform, especially at lower frequencies.