RECTANGULAR SYMMETRIC BEND – BS
Characteristics:
- Measurement: DIN 18379
- Sheet type: galvanized
- Connection method: seam lock, spot weld
- Standard design: e = 30 mm, f = 30 mm, r = 120 mm
- Endings: P20, P20 LR, P30, P30 LR, bare end, outward bending
- Leakproofness standard: Class A, Class B, Class C
- Stiffeners: available in larger dimensions
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Rectangular bends have frames made of profiles and are additionally reinforced with transverse sheet corrugation. Rectangular elbows are used for changing the ductwork routing direction, without changing the duct cross-section.
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| A (mm) | B (mm) | e (mm) | f (mm) | r (mm) | α | Area (m2) |
| 200 | 200 | 30 | 30 | 120 | 90 | 1,00 |
| 300 | 400 | 30 | 30 | 120 | 90 | 1,23 |
| 400 | 400 | 30 | 30 | 120 | 90 | 1,40 |
| 400 | 600 | 30 | 30 | 120 | 90 | 2,38 |
| 600 | 600 | 30 | 30 | 120 | 90 | 2,86 |
| 700 | 700 | 30 | 30 | 120 | 90 | 3,77 |
| 800 | 800 | 30 | 30 | 120 | 90 | 4,81 |
| 1000 | 1000 | 30 | 30 | 120 | 90 | 7,27 |
| 2000 | 2000 | 30 | 30 | 120 | 90 | 27,11 |
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