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Geluiddemper Zehnder GDH450
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- Original Zehnder part
Description
Zehnder GDH 450 Silencer for Zehnder VDA 250/280 roof fan.
Note: Please have the replacement done by a professional, this part is a fragile component. Intovent is not responsible for failures, faults and/or breakages when the part is not installed by us.
Specifications
| Intovent article number | ITV0501225 |
| Manufacturer item number | 304000450 |
| Material | Sendzimir-galvanised steel |
| Nominal duct diameter (Millimetre) | 315 |
| Coated | No |
| Shape | Square |
| Construction | Suction side above the roof |
| Air volume at 50 Pa pressure loss (Cubic metre per hour) | 2000 |
| Pitch measure (Millimetre) | 450 |
| Outer size of sound absorber (Millimetre) | 550 |
| Damping 125 Hz (Decibel) | 2 |
| Damping 250 Hz (Decibel) | 7 |
| Damping 500 Hz (Decibel) | 12 |
| Damping 1000 Hz (Decibel) | 16 |
| Damping 2000 Hz (Decibel) | 18 |
| Damping 4000 Hz (Decibel) | 14 |
| Damping 8000 Hz (Decibel) | 10 |
| Operating height (Millimetre) | 500 |
