Spiro-SAFE premium silencer diameter 500 mm - length 1200 mm with core (100 mm insulation)

Spiro-SAFE premium sound attenuator diameter 500 mm - length 1200 mm with core (100 mm insulation)

The Spiro-SAFE premium sound attenuator diameter 500 mm - length 1200 mm with core (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 occupied spaces and technical rooms remain within acceptable limits.
The connection on both ends of the attenuator features a male spigot with an integrated double EPDM lip seal, providing an airtight and reliable joint with 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 variant, the wool thickness is 50 mm and 100 mm for the PREMIUM-100 model. The mineral wool is flexible and cut from roll material, allowing it to conform closely to the shape of the attenuator and ensuring uniform sound attenuation along the entire length of the product. This guarantees consistent damping even with variable airflow and smaller duct dimensions.

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 sturdy and functional, with a strong outer casing designed to withstand mechanical stresses during installation and operation. The product code clearly indicates the type of attenuator, insulation thickness, duct diameter (Ød1), and length of the attenuator. This makes it easy to select the right attenuator for any ventilation project, from residential buildings to complex commercial installations.

Why is the premium variant superior to the standard variant?

The premium sound attenuator offers several advantages over the standard attenuator 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 inner shape of the attenuator, providing a more uniform sound attenuation.
2. Central core: From diameter 315 onwards, the premium attenuators are equipped with a central core. This core ensures that air flows through a perforated inner tube, increasing the contact between sound waves and the absorption layer. As a result, mid and high frequencies are attenuated more effectively.
3. More consistent sound reduction: The combination of flexible insulation, precise fitting, and thoughtful design ensures that the premium variant delivers a steadier sound reduction across a wide frequency range. The sound attenuation of the standard variant can be somewhat less uniform, especially at lower frequencies.