Slide-in silencer - Sound absorber, around air duct SDE 16

Slide-in silencer - Sound absorber, around air duct SDE 16 – Maico – 0044.0216 – 4012799442165: Insertion silencer SDE 16 outer diameter 162mm, flexible, can be used as a silencer or for pressure regulation in flexible and spiral-seam pipes. Suitable for ventilation and ventilation. Can be flexibly adapted to the circumstances by removing the plugs. Small opening provided for air volume measurement. Little need for space. Easy to assemble. Can be installed later. Fire and mold resistant foam, in accordance with emission class M1 requirements. Easy to clean with a vacuum cleaner. Article: SDE 16, Installation location: Pipe, Material: PU foam, Weight: 0.1 kg, Nominal width: 160 mm, Suitable for nominal width: 160, Outer diameter: 162 mm, Width: 165 mm, Height: 165 mm, Depth: 50 mm, insertion loss at 63 Hz: 6.5 dB / 3 dB / 1.5 dB, insertion loss at 125 Hz: 7 dB / 3.5 dB / 2.5 dB, insertion loss at 250 Hz: 4 dB / 2.5 dB / 1.5 dB, insertion loss at 500 Hz: 9.5 dB / 5.5 dB / 3.5 dB, insertion loss at 1 kHz: 13 dB / 8.5 dB / 6 dB, insertion loss at 2 kHz: 16 dB / 8.5 dB / 6 dB, Insertion loss at 4 kHz: 18 dB / 15 dB / 12 dB, Insertion loss at 8 kHz: 22 dB / 20 dB / 17 dB, Insertion loss Note: Data for 1, 3 and 5 openings, Suitable for box fans: no, suitable for roof fans: no, suitable for pipe fans: no, suitable for heat recovery systems: no, suitable for wall-mounted fans: no, suitable for wall-mounted fans: no, suitable for residential building fans: no, suitable for centrifugal fans: no, suitable for circulation fans : no