Inline Duct Fans
GTM GIS Series Silent Insulated Inline Duct Fan
Acoustic insulated inline duct fan for low-noise ventilation in offices, hotels and occupied buildings. Sizes 125–400 mm.
| Brand | GTM - German Technology Motors |
| Size_Range | 125-400 mm |
| Casing | Acoustic insulated |
| Noise | Silent version |
Performance Data
Technical Specifications
| Model Size | Diameter (Ø mm) | Max Airflow (m³/h) | Max Pressure (Pa) | Sound Power (dB(A)) |
|---|---|---|---|---|
| GTM-GIS-125 | 125 | 360 | 150 | 28 |
| GTM-GIS-150 | 150 | 580 | 190 | 32 |
| GTM-GIS-160 | 160 | 700 | 220 | 34 |
| GTM-GIS-200 | 200 | 1,050 | 300 | 38 |
| GTM-GIS-250 | 250 | 1,700 | 390 | 43 |
| GTM-GIS-315 | 315 | 2,800 | 500 | 48 |
| GTM-GIS-355 | 355 | 3,950 | 580 | 52 |
| GTM-GIS-400 | 400 | 5,600 | 680 | 56 |
* Values are nominal and subject to manufacturing tolerances. Consult GTM technical support for specific duty points or operating conditions.
Where It’s Used
Key Applications
Used when quiet extraction or supply air is required in occupied spaces without moving the fan outside the duct.
HOTELS
OFFICES
RETAIL
LOW-NOISE HVAC
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