SORDO-B

SORDO-B is a circular sound attenuators for connection to circular ducts, equipped with acoustic centre baffle.

SORDO-B dim 315 to 400 with 100 mm thick mineral wool. The standard SORDO is made of galvanised sheet steel to Environmental Class C3 (equivalent to M2 to VVS-AMA 98) The SORDO-B dim 315 and 400 is fibre-migration-proof thanks to our solution with self-supporting surface layer FarTex^®, which is approved with regard to cleaning, fibre migration, resistance to ageing, emissions, etc. The connection spigots are fitted with rubber seal rings.

The SORDO-B dim 500 to 800 is made of galvanised sheet steel to Environmental Class C3 (equivalent to M2 to VVS-AMA 98 . Sound attenuating material consisting of 100 mm thick long-fibred, compressed rock wool lined with EUROLON. EUROLON withstands substantially higher air velocities and mechanical strain than that in other makes of ordinary staple fibre. The sound attenuating material is also covered with perforated sheet steel outside the EUROLON layer. The connection spigots are fitted with rubber seal rings.

The product can be mounted by means of approved hangers that satisfy the provisions to load bearing capacity rating R corresponding to the fire resistance the structural element of the building, for example load bearing capacity rating R 60 for elements of structure to fire-resistance class EI60.

The connection spigots on this product are designed for connection to ducts only. It is important to drive screws or blind rivets into the sheet-metal edge on the connection spigot.