A typical fitting used in ventilation systems. Basically, it is used to change the direction of the ventilation installation by 45 degrees while maintaining the duct diameter.
| r=1,0 d1 | ||
| Nominal diameter | Surface m2 with assembly connector | Weight [kg] |
| 80 | 0,046 | 0,3 |
| 100 | 0,063 | 0,4 |
| 125 | 0,087 | 0,5 |
| 150 | 0,112 | 0,6 |
| 160 | 0,123 | 0,7 |
| 200 | 0,175 | 1,0 |
| 250 | 0,280 | 1,6 |
| 315 | 0,403 | 2,6 |
| 355 | 0,489 | 3,2 |
| 400 | 0,647 | 4,3 |
| 450 | 0,781 | 5,2 |
| 500 | 0,930 | 6,2 |
| 630 | 1,374 | 10,9 |
| 800 | 2,180 | 17,2 |
| 1000 | 3,219 | 28,8 |
| 1250 | 3,852 | 49,6 |