A lower-speed curtain selection is unsuitable for the design airflow.
This model identifies the 4000 fpm vertical configuration explicitly.
The larger opening accommodates a wider stored curtain while retaining the narrow frame format. This configuration addresses vertical penetrations where operating air velocity exceeds the lower-speed selection.
| Duct Opening | 610 x 610 mm |
|---|---|
| Installation Plane | Vertical |
| Frame Construction | Galvanized steel |
| Frame Depth | 56 mm |
| Curtain Material | Galvanized steel |
| Thermal Release | 165 °F (74 °C) fusible link |
| Spring Material | Stainless steel |
| Operating Velocity Configuration | 4000 fpm |
| Pressure / Fire Configuration | 4 in. w.g. / 1.5 hours |
| Tùy chỉnh | Available to suit the installation opening and connected ductwork. |
This model identifies the 4000 fpm vertical configuration explicitly.
Sleeve geometry can accommodate the stored curtain and preserve its travel path.
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