4000 FFL SL |
3600 FFL SL |
3200 FFL SL |
2880 FFL SL |
2240 FFL SL |
1440 FFL SL |
|
Measured Throat Area (Av) in (m²) |
4.00 |
3.60 |
3.20 |
2.88 |
2.24 |
1.44 |
Aerodynamic Free Area (AvCv) in (m²) |
2.52 |
2.27 |
2.02 |
1.82 |
1.42 |
0.91 |
Discharge Coefficient (Cv0) |
0.63 |
0.63 |
0.63 |
0.63 |
0.63 |
0.63 |
Throat Length (mm) |
1800 |
1800 |
1600 |
1600 |
1600 |
1200 |
Throat Width (mm) |
2000 |
2000 |
2000 |
1800 |
1400 |
1200 |
Quantity of Blades |
12 |
11 |
9 |
9 |
8 |
7 |
Total Height (mm) |
140 |
140 |
140 |
140 |
140 |
140 |
Total Length (mm) |
1923 |
1923 |
1773 |
1773 |
1773 |
1373 |
Total Width (mm) |
2430 |
2230 |
2230 |
2030 |
1630 |
1430 |
Approximate Mass (kg) |
90 |
75 |
68 |
60 |
48 |
40 |
Recommended Purlin Spacing (mm) |
1800 |
1800 |
1600 |
1600 |
1600 |
1200 |
Discipline |
Tested To |
Coefficient of Discharge |
According to Ventilator Size |
Rain Testing |
Fully Waterproof |
Wind Load Testing |
Suction and Pressure Tested |
Temperature Rise |
Slowly and Rapidly Tested |
Fatique Testing |
30 000 Cycles Opened and Closed |
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