WAMFLO
®
FN200X
3.0
3.0 TECHNICAL INFORMATION
2
FIL.WAMFLO_FN200.EX.M.A7.0522.EN Issue: A7
05.22
12
VALUES FOR ST1, ST2 CLASSES
The filter has been designed and tested to work with dust having explosion class St1, St2.
WAMFLO
®
ATEX
has a structural resistance of Pred = 1 bar (10.000 mm H
2
O, 1000 millibar, 100 KPascal).
Parameter
Unit
of measure
Zone 22
cat. 3D
Zone 21 cat. 2D
No fan
With fan
Minimum ignition temperature of
a 5 mm layer of dust (LIT)
°C
>=210
>=155
>=275
Minimum ignition temperature of
suspended powder (MIT)
°C
>=210
>120
>300
Minimum ignition energy (MIE)
mJ
>3
>3
>3
Maximum explosion pressure
(Pmax)
bar
<=9
<=9
<=9
Reactivity parameter (Kst)
bar m/s
<=300
<=300
<=300
The use of the round dust collectors in the presence of dust having other features than those indicated or in
areas with different classification falls under the direct and exclusive responsibility of the user.
NOTE:
The
WAMFLO
®
ATEX
filter must be installed in a plant provided with the suitable prevention, protection
and compartmentalization systems, according to the ATEX Directive, unless the risk analysis of the
system excludes the presence of ignition sources (of the exogenous type or foreign bodies with high
impact energy).
3.4 Compliance with the ATEX Directive
The dust collectors type
WAMFLO
®
ATEX
have been designed and manufactured in compliance with the
essential requirements for safety and health in case of machinery intended for use potentially explosive at-
mospheres zones (ATEX Directive).
WAMFLO
®
ATEX
series dust collector follow the principles of integrated
explosion safety, and they have been designed to:
1.
Avoid as far as possible that the equipment and the protective systems generate or release explosive mix-
tures.
2. Prevent the ignition of a possibly explosive atmosphere, by taking into account the nature of each source of
ignition (electric or not) of the filter.
3.
Optimizing the control and maintenance conditions, to ensure a perfect effectiveness.
4.
To meet predictable environmental conditions.
5.
Allow the outburst of the flame front in a controlled manner (by installing special venting panels) with a direct
or indirect effect, in case an explosion that could endanger persons and goods occurs despite all measures
taken. This allows limiting in a defined manner the area affected by fire and by the pressure generated by a
possible explosion.
6.
NOTE REGARDING PLANT CONFORMITY
