Use and Care Manual

3
D: protection by flameproof enclosure "d"
IIB: used in IIB group gases
T4: temperature class
Gb: equipment protection level
See Figure 1 and 2 for the diagram of the fan.
The main dimensions of the fan see Table 2.
Figure 1: Diagram of ILG8EF10EX, ILG8EF12EX
Figure 2: Diagram of ILG8EF16EX, ILG8EF20EX
Table2: The main dimensions of the fan
Model A B C L H Φ1 Φ2 Φ3
BTF-25 210 175 / 380 375 140 280 325
BTF-30 225 220 / 380 425 165 330 380
BTF-40 295 325 575 450 670 218 435 480
BTF-50 325 425 675 480 770 268 535 580
2. Service condition
a) Ambient temperature: -20℃～+40℃;
b) Height above sea level: ≤ 2000mm;
2 3
1