Openable rectangular silencer with round connections and mineral wool or synthetic filling. Silencers Ø400-630 include a noise-absorbing element. Suitable for general ventilation system silencer, especially in situations where the silencer dimensions should be smaller and the absorption values should be good..
- Sound-absorbing material:
- NTFA – Mineral wool
- NTPA – Synthetic (Cleanliness Classification M1)
- Standard dimensions: Ø100-630 mm
- Standard lengths: 300, 600, 900 mm
