CLA-B

The CLA-B is a rectangular sound attenuator for connection to circular ducts, is equipped with an acoustic centre baffle for improved sound attenuation data.

The standard CLA-B is made of galvanised sheet steel to environmental class C3 (equivalent to M2 as per AMA VVS2016). The connection spigots are fitted with rubber seal rings.

CLA-B up to dim 400 with mineral wool and self-supporting polyester surface layer FarTex^®.

The CLA-B dim 500 to 800.

The sound-attenuating material on dimension 500-800 ISOVER Cleantec^® PLUS, is a type-approved insulation material consisting of long-fibred compressed mineral wool.

The mineral wool is covered with a micro-perforated aluminium foil.

ISOVER Cleantec^® PLUS is type-approved for cleaning using liquids with a plastic brush or even a highpressure cleaning apparatus. Naturally it also conforms to relevant standards regarding cleaning, fibre entrainment, resistance to ageing and emissions, etc. to type-approval number 2706/92.

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.

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 R60 for elements of structure to fire-resistance class EI60.