Klimawent 808W18, Руководство по эксплуатации и обслуживанию, Страница: 5 / 16

5
04.06.2019
chem-proof Ex roof fan
SPARK-CHEM/Ex
Fig. No.2
– Dimensional drawing of the fans type SPARK-CHEM/Ex
Table No.2
– Dimensions of the fans type SPARK-CHEM/Ex
Type of the fan D D
0
A H n
Ø
[mm] [mm] [mm] [mm] [mm] [mm]
SPARK-CHEM-160/1500/Ex 160 184 420 429 8 7
SPARK-CHEM-200/1500/Ex 200 224 476 471 8 7
SPARK-CHEM-250/1500/Ex 250 274 550 523 8 7
SPARK-CHEM-315/1500/Ex 315 339 660 622 8 7
5. Structure and Function
Structure of the fan is illustrated on Fig. No.3. The subsequent constructional elements of the
fan (except the impeller) are of antistatic plastic (PE EL) . The impeller is made of stainless steel,
therefore it is possible to forward the chemically aggressive and flammable gases and vapours
as a
mixture
with the air. In the course of constructing there were selected materials that pre-
vents from ignition caused by hot surfaces or sparks caused by friction between the rotary ele-
ments of the fan
(constructional safety “
c
”).