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IONIZATION - ELECTROSTATIC FILTRATION |
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The EFX system represents an alternative to conventional pocket filters,
which facilitates the use of electrostatic filters.
Its application in ventilation systems and
particularly in the air conditioning field does not imply any kind of
constructive or dimensional change of the installation.
Through its multipolar connection system and
incorporated electronics, the EFX system filters can be easily installed
and uninstalled by the simple sliding of the unit through the frame
structure.
Main features :
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standard dimensions according to the
usual measures of pocket filters (592x592 and 592x287)
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isolated and incorporated electrics
can be rinsed/cleaned in water
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multipolar connection suitable for network supply (230V - 50/60Hz) as well as for several parallel
installed filters
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selfcentering system allows compensation of
manufacture intolerances up to 3 mm
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remote control/signal to monotoring system or directly from an LED in the filter itself.
Performance:
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high efficiency filtration 0.3-0.4 micron particles, comparable to class H efficiency according to UNI
1822
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excellent solution to fight outdoor pollution
of PM10, PM2.5 and PM1
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excellent protection of the heat exchanger
and of the air pipes from obstruction of polluting agents.
In relation to the conventional filtration, the
EFX system allows:
For its innovative content, the EFX system is
covered by a patent.
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FAQ
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Customer |
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Statement |
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AirClean |
AirClean |
AirClean |
AirClean |
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References |
Food |
Industrial |
Air Treatment
system |
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Needle Ionization
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Electrostatic |
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filter |
Ionization |
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Datasheet |
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Simple installation |
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The EFX system represents an alternative to the
common pocket filters and is believed to simplify the usage of
electrostatic filters. |
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Its adoption within ventilation plants in general,
and more specifically in air conditioning plants, does not imply any
variation regarding constructive and dimensional characteristics of the
plant. |
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Thanks to its multipolar connection system, assembly and disassembly
of the EFX electrostatic filters becomes simple. It
is enough to slide the filtering units in and out inside the filter
frame. |
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Energy Savings |
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In the electrostatic filter the initial pressure
drop increases only a little while the filter gets dirty. This
characteristic, combined with an extraordinary capacity of pollutants
accumulation, allows the filter to have a long lasting life.
In a traditional rigid pocket filter the initial
loss of pressure is higher than in an electrostatic EFX filter, and it increases considerably during its clogging. The bag must be replaced
when it has reached the maximum pressure of 450 Pa.
Comparing the EFX filter with two other different
filtering systems, operating at the same contaminated indoor air
conditions and at the same air flow capacity, we can observe that the
pressure loss of the EFX
filter increases very slowly, while in an F6 filter it
reaches the maximum pressure of 450 Pa before the EFX filter is saturated.
This means that maintenance is required to replace the F6 filter. Even more
evident is the durability of an F9, which needs to be replaced three
times during the life span of a single EFX-filter.
A higher flow restriction means merely higher
energy consumption for the bag filters. Compared with an electrostatic
EFX
filter, we estimate a doubled energy consumption using an F6-filter and three times more using
an F9-filter.
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Air Pressure Drop |
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Energy Savings |
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AirClean |
AirClean |
AirClean |
AirClean |
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Savings |
Filter
Information |
Clean rooms
Techn. info |
Clean rooms |
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Completely regenerable filter |
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The filter is embedded in a rigid and rugged
aluminum frame which gets dirty by attracting and holding airborne
particles of pollutants which remain accumulated on collector plates.
When the filter is saturated, it can be easily
rinsed in
water and a detergent to remove dirt and put it back as new.
If the rinsing procedures are made properly and
carefully the filter can last for many years. |
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Antibacterial Effect |
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Unfiltered Air |
Filtered Air |
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The electrostatic filter has an elevated
antibacterial effect thanks to its high collection efficiency of
submicronic particles and also because of its strong electric field
force.
In the A test below researchers have measured the
concentration of some bacteria commonly present in a given ambient air,
before and after the electrostatic filter. The efficiency is between 98
and 99,9%.
Test B shows how the concentration of mould in
the air gets reduced when the ambient air is equipped with an electrostatic
air filter. |
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A. Measurement of the bacterial
load in the air before and after the electrostatic filter |
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CFU before the
filter |
CFU after the
filter |
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M. luteus |
2896 |
0 |
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R. rubra |
830 |
9 |
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Muffe |
548 |
2 |
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B. Mould reduction inside
electrostatically filtered air |
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Operating hours of an
electrostatic filter |
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0 |
1 |
2 |
3 |
8 |
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CFU Muffe |
1000 |
335 |
200 |
20 |
18 |
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Incorporated electronics |
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An incorporated electronic circuit permits generation of the necessary working voltage directly in the filter
itself.
Through the multipolar connectors CA, CG, CT it
is possible to connect the power supply to the filter with a voltage
of 230V-50Hz and alert the alarm signal.
Efficient watertight solutions allow the
electronic box to be rinsed with the filter instead of having to remove
it. |
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Technical
data |
Dimensions |
Weight
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Electr.
Power |
Accum.
Capacity |
Airflow Capacity (m3/h) |
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mm |
kg |
w |
g |
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EFX 250 |
287 x 490 |
8 |
9 |
216 |
470 |
600 |
750 |
900 |
1200 |
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EFX 300 |
287 x 592 |
10 |
9 |
282 |
600 |
800 |
1000 |
1200 |
1600 |
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EFX 450 |
490 x 490 |
14 |
16 |
378 |
820 |
1050 |
1310 |
1570 |
2100 |
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EFX 500 |
490 x 592 |
16 |
16 |
494 |
1070 |
1400 |
1730 |
2100 |
2770 |
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EFX 550 |
592 x 490 |
16 |
16 |
460 |
990 |
1270 |
1590 |
1910 |
2550 |
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EFX 600 |
592 x 592 |
19 |
16 |
600 |
1300 |
1700 |
2100 |
2550 |
3360 |
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Filtration Class UNI 11254 |
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A |
B |
C |
D |
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Efficiency on DEHS at 0.4µm |
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Em≥99 |
99≤Em95 |
95≤Em90 |
80≤Em90 |
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Efficiency in % on particles > 0.5µm |
% |
99.6 |
99.5 |
98.4 |
97.3 |
93.2 |
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Charge loss |
Pa |
10 |
17 |
25 |
34 |
63 |
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Percentage of max air flow capacity |
% |
39 |
50 |
63 |
76 |
100 |
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Frame: Aluminium
Prefilter: Metal mesh |
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Characteristic Curves |
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Filter
clogging in g of ISO 12103-A2 dust |
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Percentage
of maximum air flow capacity |
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Percentage
of maximum air flow capacity |
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Selection Chart |
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The EFX filter series have been tested in
accordance with the UNI 11254 Standard which determines a specific
classification of electrostatic filters based on the efficiency
percentage measured with test dust DEHS on particles of 0,4 μm: A, B, C, D.
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Example:
Code EFX0012 |
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