Helios Ventilatoren SDE 180 Ductwork soundproofing

Flexible tubular silencer Robust design made of flexible aluminum pipe. Perforated inner lining with resin-bound acoustic insulation packing in approx. 50 mm thickness. Both sides with insertion nozzle with sealing ring, which can be inserted into the pipe. The 4-fold pipe friction resistor must be taken into account when calculating the system.

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