Description
22
DVV-Ex XS-XL 23.02.2015
5.
Description
Roof radial fans type DVV-Ex with electric motor in explosion protection »flameproof enclosure (Ex d)« are intended
to exhaust potentially explosive atmospheres according to their Ex-identification.
The octagonal casing is manufactured from seawater resistant aluminium. The base plate with nozzle consists of hot-
dip galvanized steel. The inlet nozzle is coated with cooper sheet. Impellers with backward-curved blades are welded
and galvanized. They are fastened together with hub and secured screw directly on to the motor shaft. Dynamically
balanced to ISO 1940 T1, class G6,3. The earthing connection of electric motor is connected by a coopper strand with
the base plate.
Additional sound attenuator HSDV is available on request, factory mounted as DVVI-Ex fan.
Serial equipped with B5 electric motors 3x400V~, 50Hz, IP 55, insulation class F, with built-in PTC.
Electric motor
Connection
Single speed (4 pole, 6 pole, 8 pole)
Y or D
Two speed (4-6, 6-8)
Y/Y
Two speed (4-8) Dahlander
YY/Y
5.1
Technical data
Size
Max.
synchron
RPM at 50
or 60 Hz
Max. nomi-
nal power at
50 Hz*
Impeller
diameter
Max.
weight**
DVV-Ex
Max.
sound power
level inlet
Max.
sound power
level outlet**
min-1
kW
mm
kg
dB(A)
dB(A)
560-XS, XM,
XL
1500
2,2
520, 570
114
90
90
630-XS
1500
3
650
145
92
94
630-XM
1500
4
650
159
94
96
630-XL
1500
5,5
650
183
97
98
800-XS
1000
3
820
260
84
86
800-XM
1000
4
820
270
87
89
800-XL
1000
5,5
820
274
91
93
1000-XM
1000
7,5
980
379
92
95
1000-XP
1000
11
980
403
93
96
1000-XL
1000
11
980
405
92
94
*Motor data (input power P1, current, RPM) and data of the fan are visible on the name plate and on the test pro-
tocol.
**Single speed motors, without HSDV
5.2
Dimensions
Are on-line available (www.systemair.com).
6.
Installation
6.1
Safety information
WARNING
Hazard from falling parts!
•
Check the base before installation for load capacity/strenghth.
•
When selecting the hoisting device and fitting material observe the weight, tendency to vibrations and
shear forces (weight information on the name plate).
