Sheet metal ventilation aperture silencer LARGO

mineral wool

Angled sound attenuator with recessed connection for rectangular ducts LARGO is, due to its unique design with connection facing the side splitters, suitable for use both in ducts and in direct connection to the air handling unit. A low pressure drop is obtained as the baffle elements also serve as guide vanes for deflecting the air flow. Very compact rectangular attenuator Excellent aerodynamic characteristics Very low pressure drop – splitters function as trim rails Environmentally friendly acoustic material, approved by independent test institute: ISOVER Cleantec® PLUS Washable surface layer ISOVER Cleantec® PLUS. Can be supplied with inspection hatch Fire protected version with 50 mm mineral wool also available Connection dimensions from 400x300 mm to 2000x2000 mm Included in the MagiCAD database Technical description General The LARGO is an angle sound attenuator with aerodynamically designed baffle elements suitable for use both in ducts and in direct connection to ventilation units. Its pressure drop is low in that the baffle elements also serve as guide vanes for deflecting the air stream. Function The LARGO’s low pressure drop has been achieved by designing the acoustic baffle elements completely according to the basic laws of aerodynamics. To achieve this, the acoustic baffles are utilised according to the principle for deflecting the air stream by means of guide vanes. The means in many cases that the LARGO can replace a rectangular bend (without guide vanes) with maintained or even lower pressure drop. The low pressure drop can e.g. be utilised for the following: