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.