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Square cross-section straight duct
Straight air duct with trapezoidal bracing, for larger sizes with internal bar bracing above 1500 mm width. Manufactured as standard in length L max = 1500 mm with fixed frame connection, but also available with loose frame with non-fixed connections. 0,7 mm for side lengths 0-799 mm, 0,9 mm for side lengths 800-1499 mm and 1,0 mm for side lengths over 1500 mm, in galvanised steel sheet. Available in air tightness B and C, as well as heat and smoke versions. Pressure class from -600Pa to 1000Pa.
| size “a” | MEZ frame | Plate thickness | Screw size | Air tightness | Heat and smoke dissipation | |||
| mm | mm | mm | „A” | „B” | „C” | + | ||
| 0 – 499 | MEZ 20 | 0,7 | M8 X 20 | + | + | + | + | |
| 0 – 799 | MEZ 20 | 0,7 | M8 X 20 | + | + | + | + | |
| 800 -1000 | MEZ 30 | 0,9 | M10 X 30 | + | + | + | + | |
| 1001 – 1250 | MEZ 30 | 0,9 | M10 X 30 | + | + | + | + | |
| 1251 – 1499 | MEZ 30 | 0,9 | M10 X 30 | + | + | + | + | |
| 1499 – 2499 | MEZ 30 | 1,0 | M10 X 30 | + | + | + | ||
| 2500 – | MEZ 40 | 1,0 | M10 X 30 | + | + | + | ||
| Premium frame | + | + | ||||||
ÉME IS LICENSED
