Pressed bends are designed for building ventilation systems based on spiral and plain ducts. Seam welds improve the air tightness of the ventilation system, while the hemmed rim helps to avoid cutting injuries during handling and installation. The pressed form of the ventilation piece helps to reduce the flow resistance and pressure loss. The piece is connected with a duct by inserting one into the other.
| Ød1 nom (mm) | L (mm) | Weight (kg) |
|---|---|---|
| 80 | 80 | 0.3 |
| 100 | 100 | 0.4 |
| 125 | 125 | 0.6 |
| 140 | 135 | 0.8 |
| 150 | 150 | 0.9 |
| 160 | 160 | 1.0 |
| 180 | 175 | 1.2 |
| 200 | 200 | 1.5 |
| 250 | 250 | 2.4 |
