Straight circular silencer with 100 mm noise-absorbing mineral wool or synthetic filling. The silencer consists of a perforated inner duct connected with gasketed duct fittings and a galvanized steel casing. The space between the perforated duct and the casing is filled with sound-absorbing material.
- Sound-absorbing material:
- NRF – Mineral wool (fire resistance class EI60)
- NRP – Synthetic (Cleanliness Classification M1)
- Density class: D
- Standard dimensions: Ø100-1250 mm
- Standard lengths: 600, 900, 1200 mm