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 30, E 120
Fire classes with protective distance to: evacuation person:
3 kW/m² EI 120 at distance 50 mm
10 kW/m² EI 120 at distance 5 mm30 kW/m² EI 120 at distance 5 mm
Insulation thickness 50 mm.