Fans are installed vertically with a permissible deviation of axles from horizontal by not more than 30 degrees. The main feature of the fan is the increased total rated pressure, compared to the serial production units, due to construction advances.Advantages:
- hi-tech aerodynamic scheme with high pressure characteristic
- thermal shutdown in case temperature exceeds normal value or the bearings start to vibrate
- blades of the fan are made of non-inflammable material
- economic
- if required, the fan can be equipped with a muffler
Specifications:
|
Name
|
Value
|
|
Nominal diameter, mm
|
700
|
|
Rated capacity, m3/s
|
8.8
|
|
Total rated pressure, Pa
|
7100
|
|
Maximum overall efficiency, %
|
64
|
|
Electric drive power, kW
|
50*2
|
|
Rotation speed, min
|
3000
|
|
Electric motor protection
|
IP54
|
|
Height, mm, max
|
1080
|
|
Width, mm, max
|
1000
|
|
Set mass, kg, max
|
1030
|
Local ventilation fans VVM-7 have been tested at mine Chertinskaya (September 2005-March 2006), mine Gramot (2006), open-cut mine Olzherass (2006).
Sanitary and epidemiological certificate
License issued by Federal Office of Ecological, Technological and Atomic control
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