NRF 50mm 315-900 round silencer ETS NORD (Ø315mm, 50mm insulation),

– The ETS NORD NRF 315-900-50 is a compact, high-efficiency round silencer for 315 mm ventilation ducts.

– Built with 50 mm mineral wool insulation, a perforated galvanised steel inner tube, and a protective fabric liner, it offers long-lasting performance and superior sound attenuation.

– ETS NORD NRF 315-900-50 is complying with airtightness class D, this mineral wool silencer is fitted with a factory-installed rubber gasket to prevent air leakage and reduce pressure loss, enhancing overall system performance.

– It’s ideal for residential, office, and commercial HVAC installations where noise control is essential.

– The 900 mm length provides excellent attenuation while maintaining low airflow resistance. For even greater noise reduction, multiple silencers can be installed in sequence.

– Installation is quick and straightforward, with no sealants or adhesives required. The most effective noise reduction is achieved when the silencer is installed directly behind the fan or a duct elbow.

Technical Information:
Connection diameter (d) Ø (mm): 315
Diameter “d1” (mm): 415
Length “L” (mm): 900
Insulation thickness (mm): 50
Weight (kg): 16.3
Fire resistance class: EI15, E60
Material: Galvanised steel sheet, mineral wool