MORENDO T3

Fire-resistant insulated sound attenuator
  • Fire-resistant insulated with 50 mm thick stone wool
  • In many applications, sound attenuators are installed in fire resistant insulated duct systems. In applications in which ventilation ducts are to be insulated with 50 mm thick fire-resistant stone wool, the fitter can either install external insulation onto the sound attenuator directly at the building site or place an order for the factory-insulated variant.
  • For the MORENDO, the factory-insulated variant is available as an accessory. You can choose to insulate the cleaning cover only (MORENDO T2) or insulate the whole sound attenuator (MORENDO T3).
  • The acoustic data do not change if the MORENDO T3 accessory is used.

The pressure drop increases because the fire-resistant insulation reduces the amount of free area. The reduction in free area is specified in Diagram 1.

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