SORDO-A, Size 125-500

SORDO-A

Sound attenuators for circular ducts

50 mm mineral wool
Galvanised sheet steel to Environmental Class C3
Fibre-migration proof with FarTex®
100 mm shorter
Air tightness class D
M1 classified
Excellent noise attenuation
Low pressure drop
Included in the MagiCAD database
Fire-resistance class EI30 to EI120*
** See the table for requisite safety distance

Calculate with your requirements

Product Description

Design

Material and Surface Treatment

The standard SORDO-A is made of galvanised sheet steel to Environmental Class C3 (equivalent to M2 to VVS-AMA 98).

The SORDO is fibre-migration-proof thanks to our new patent-pending solution with self-supporting surface layer, which is approved with regard to cleaning, fibre migration, resistance to ageing, emissions, etc.

The connection spigots are fitted with rubber seal rings.

Sound attenuating material consisting of 50 mm thick mineral wool.

Installation Information

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.

Nordic Swan listed

The product is listed in the database for building products that can be used in Nordic Swan Ecolabelled buildings.

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Include Accessory documents

Document	Article	Document type	Date
Sound attenuator for circular ducts (pdf 294.94kB)	SORDO-A	Technical catalogue	15/01/2024
Installation, Maintenance (pdf 132.46kB)	SORDO-A	IOM Manual	17/01/2024
Acoustics Overview (pdf 2.43MB)	CLA-A, CLA-B, SORDO-A, SORDO-B, SORDO-C, SORDO-P, SORDO-PF, CALMO, CADENZA, LARGO, LENTO, MORENDO, FACILE, ALD, CTM, CTK	Brochure	08/04/2023
M1 Certificate (pdf 167.9kB)	CLA-A; SORDO-A	Quality	12/05/2023
Building product declaration (pdf 50.46kB)	SORDO-A	Quality	24/05/2018
Type approval (pdf 180.06kB)	SORDO-A	Quality	21/10/2021

Whilst we have made every effort to ensure information on this website is up to date and accurate, the technical specification and availability of products/services listed on this website may vary market to market and are subject to change without notice. Please contact your regional representative or visit your local website for further details.

SORDO-A - Standard range
Dimension	Length	Working range	Attenuation
mm	mm	m³/s	dB(A)
100-400	500-1100	0-2	5-20