Noise-attenuating bend with 50 or 100 mm noise-absorbing mineral wool or synthetic filling. The silencer consists of a perforated inner tube and an outer shell made of galvanized sheet steel. For connection to the ventilation ductwork, the silencer is equipped with duct connections with rubber gaskets. The space between the perforated duct and the casing is filled with sound-absorbing material.
- Sound-absorbing material:
- NRFV – Mineral wool
- NRPV – Synthetic (Cleanliness Classification M1)
- Standard dimensions: Ø100-315 mm
