Exhaust Fans: EM 36
 EM36
is the ideal exhaust fan whenever high airflow capacity is
required. The unique propeller design is self-cleaning and
allows the highest efficiency to be reached.
The square fan housing and air conveyor (venturi) are made
of a strong galvanised sheet-steel. The 6-blade propeller
is statically and dynamic balanced for low noise and low vibration.
The propeller is available in stainless steel, galvanised
steel and pre-coated and galvanised steel.
To improve aerodynamic efficiency, the fan has been developed
in Munters euroemme's R&D lab. The test chamber has been
built according to ANSI / AMCA 210-85 Figure 15 specifications.
Construction details and airtightness have been verified by
personnel of the BESS Lab at the Agricultural Engineering
Department, University of Illinois - USA.
Propeller and shutter
 The
propeller is attached to a large v-belt pulley in which is
embedded a double ball bearing protected against water. The
belt transmission ensures low propeller rpm, which ensures
high efficiency and low energy consumption as well as low
noise. The shutter is made of galvanised steel for all models,
which is stronger than aluminium and plastic. The fan shutter
is tightly closed when the fan is not working preventing any
air leakage through the fan.
The patented centrifugal system hinders the shutter from
being closed by air pressure, keeping the efficiency of the
fan at a peak at all times by keeping the shutter fully and
firmly opened. The shutter does not have to be cleaned regularly
as dust does not affect its opening and closing movement.
All the plastic parts are made of acetalic plastic with UV
protection.
Equipment
- Fan housing and venturi made of strong galvanised sheet-steel.
- Shutters are made of pressed galvanised steel in order
to ensure highest strength.
- Each motor is individually tested for 100% quality control.
- Central hub and v-belt pulley are made from die-cast
aluminium.
- Propeller is statically and dynamically balanced.
- Shutter bearings are maintenance free.
- Patented centrifugal system permits a fully and firm
opening of the shutter.
- Shutter is opened by rotating weights placed over centrifugal
system arms.
- Shutter opening is not affected by the weight of dust
deposited on shutter blades.
- A powerful couple of springs keep the shutters firmly
closed when the fan is not operating.
- Every fan is individually checked for quality.
Curves refer to EM36 3Ph 50 Hz single
speed motor. Fan tested with shutter and wire mesh.
Order information
EM36-X-X-X e.g., EM36-b-2-wp-wm
- b : Code for electric motor according
to above table.
- 2 : Code for the type of propeller blades.
- Galvanised propeller blades.
- Precoated propeller blades.
- Stainless steel propeller blades.
- wp-wm : Options codes
- wp: Fan equipped with plastic CE
protection for belt and pulleys (on mesh side, standard
in Europe)
- np: Fan delivered without plastic
CE protection for belt and pulleys (on mesh side, standard
outside Europe)
- wm: Fan delivered with pyramidal
shape mesh for CE protection on shutter side.
- nm: Fan delivered without pyramidal
shape mesh for CE protection on shutter side (standard)
Motor Specifications
EM 36
Code |
Nominal power |
Type
phases |
Speed |
Frequency
[hz] |
Voltage
[V] |
Current
[A] |
rpm |
| [w] |
[hp] |
| a |
370 |
0.5 |
1 |
single |
50 |
230 |
3 |
1,380 |
| b |
370 |
0.5 |
1 |
single |
50 |
230 |
3 |
1,380 |
| c |
370 |
0.5 |
1 |
single |
60 |
220 - 240 |
3.3 |
1,700 |
| d |
370 |
0.5 |
3 |
single |
50 |
230 / 400 |
2.3 / 1.3 |
1,400 |
| e |
370 |
0.5 |
3 |
single |
60 |
230 / 400 |
2.3 / 1.3 |
1,700 |
| f |
370 |
0.5 |
3 |
multi* |
50 |
230 / 400 |
2.6 / 1.5 |
1,380 |
| g |
370 |
0.5 |
3 |
multi* |
60 |
230 / 400 |
2.6 / 1.5 |
1,650 |
| h |
550 |
0.75 |
1 |
single |
50 |
230 |
4 |
1,400 |
| i |
550 |
0.75 |
1 |
multi* |
50 |
230 |
4 |
1,400 |
| k |
550 |
0.75 |
1 |
single |
60 |
220 - 240 |
4.4 |
1,700 |
| l |
550 |
0.75 |
3 |
single |
50 |
230 / 400 |
2.8 / 1.6 |
1,400 |
| m |
550 |
0.75 |
3 |
single |
60 |
230 / 400 |
2.8 / 1.6 |
1,700 |
| n |
550 |
0.75 |
3 |
multi* |
50 |
230 / 400 |
3.2 / 1.8 |
1,380 |
| o |
550 |
0.75 |
3 |
multi* |
60 |
230 / 400 |
3.2 / 1.8 |
1,650 |
| p |
735 |
1.0 |
1 |
single |
50 |
230 |
5 |
1,380 |
| q |
735 |
1.0 |
1 |
multi* |
50 |
230 |
5 |
1,380 |
| r |
735 |
1.0 |
1 |
single |
60 |
220 - 240 |
5.7 |
1,700 |
| s |
735 |
1.0 |
3 |
single |
50 |
230 - 400 |
3.5 / 2 |
1,400 |
| t |
735 |
1.0 |
3 |
single |
60 |
230 - 400 |
3.5 / 2 |
1,700 |
| u |
880 |
1.2 |
3 |
multi* |
50 |
230 - 400 |
4.3 / 2.5 |
1,380 |
| v |
880 |
1.2 |
3 |
multi* |
60 |
230 - 400 |
4.3 / 2.5 |
1,600 |
| * Multi speed motors
must be regulated with auto-transformer which is not supplied.
|
Technical Specifications
| |
05 hp |
0.75
hp |
1.0
hp |
| Weight of fully equiped fan1 |
[kg] |
64 |
65 |
67 |
| Nominal propeller speed |
[rmp] |
460 |
510 |
580 |
| Airflow at 0 Pa1 |
[m3/h] [cfm] |
17,900 [10,535] |
19,880 [11,700] |
22,250 [13,095] |
| Airflow at 20 Pa1 |
[m3/h] [cfm] |
15,700 [9,240] |
17,930 [10,550] |
20,750 [12,210] |
| Specific performance at 0 Pa1 |
[m3/wh] [cfm/w] |
25.1 [14.8] |
22.3 [13.1] |
18.5 [10.9] |
| |
| Propeller diameter |
[mm] [inch] |
916 [36] |
| Number of blades |
|
6 |
| Number of shutter blades |
|
8 |
| Max. operating temperature |
[°C] [°F] |
50 [122] |
| IEC protective class of electric motor |
|
IP55 |
| Electric motor winding insulation grade |
|
F |
1 All values refer
to 3 phases 50 Hz single speed motor.
N.B Airflow data are measured at standard condition (20
°C, 1013 hPa). |
EM 36
is developed and produced by Munters euroemme S.p.A., Italy.
|
