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Silencers are applied for noise absorption during the operation of the fan spread along the ducting systems. Suitable for installation into round ducts. The silencer will reduces the noise level in the air duct.

The SIL consists of a polypropylene inner duct, thermally and acoustically insulated with a glass wool layer and provided with an aluminium laminate outer jacket. Both ends are taped to create ready-made connections.

NEN 13180 Fulfils all the requirements and are classified as specified within NEN 13180: "Ventilation for buildings – Ductwork - Dimensions and mechanical requirements for flexible ducts"