Lack of space is a frequent problem in air treatment installations. This means that it is often difficult to find enough straight lengths to install a straight silencer.

This problem can be eliminated by installing a curved silencer.

For the same length, it mostly has better attenuation than the equivalent straight silencer. In particular, you get better attenuation at high frequencies (4 and 8 kHz).

Fire classes without protective distance: EI 60, E 120

Fire classes with protective distance to:

evacuation person: 3 kW/m² EI 120 at distance 50 mmcombustible materials: 10 kW/m² EI 120 at distance 5 mm30 kW/m² EI 120 at distance 5 mm

Insulation thickness 100 mm.