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68
INDUSTRIAL PUMPS
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Chapter 2 - Introductory Information
Translation of original instructions -
S
CUBIC-
S
BOXER
rev.
2021
2.3 ATEX MARKING AND DEFINITION
All S
CUBIC e
S
BOXER
Air Pumps comply with the Community Directives for the free circulation of goods
applicable to them
(
see Declaration of Conformity
)
.
They are produced as standard in the STANDARD version, ATEX
execution
III 3G Ex h IIB T4 Gc
and
II 3D Ex h IIIB T135°C DcX
, for use in "
Zone 2- Zone 22
" (in the presence of flammable gas and
dust) as well as ATEX
execution
I M2 Ex h I Mb X
for use in mines in the low shock zone "
Zone M2
"
(in the presence of a potentially explosive atmosphere consisting of firedamp and coal dust).
Upon specific request when ordering, pumps can be supplied in the CONDUCT version, ATEX
exe-
cution
II 2G Ex h IIB T4 Gb
and
II 2D Ex h IIIB T135°C Db
, for use in "
Zone 1 - Zone 21
".
CAUTION
The Identification Plate of the pump shows the ATEX marking and the category of the equipment.
Check com-
pliance with the classification of the installation “Zone” before carrying out the installation.
The equipment user is responsible for classifying their installation zone.
Below is the definition of the ATEX marking for each execution.
: Safety symbol in accordance with DIN 40012 attachment A.
II 3 G/ II 3 D
: Surface equipment for use in areas where the presence of gases, vapours or mists in addition to clouds
of combustible powder in the air is unlikely during normal operation, both in external and internal areas
and, if it does occur, it will only persist for a short period (Zone 2 - Zone 22).
II 2 G/ II 2 D
: Surface equipment for use in areas with the presence of gases, vapours or mists in addition to clouds of
combustible dust in the air that occur occasionally during normal operation (EN 1127-1 par. 6.3), both in
external and internal areas (Zone 1 - Zone 21).
I M2
: M2 category equipment that can be installed in mines in "hazardous condition 2", i.e. in a potentially
explosive atmosphere consisting of firedamp and coal dust.
... * * * Ex * * * *
Temperature Class
(group II):
Temperature
superficial
maximum
Class
[°C]
T1
= 450
T2
= 300
T3
= 200
T4
= 135
T5
= 100
T5
= 85
Ambient reference tempera-
ture minus 5°C - 60°C.
For the class of powders,
the maximum surface
temperature is followed by
letter “
T”
: e.g.
T100°C.
Gas Group:
I
= Mines (Methane)
II
= Surface industries
IIA
= *Propane, etc.
IIB
= *Ethylene, etc.
IIC
= *Hydrogen,
*Acetylene etc.
* Example of Representative trigger gases.
Powder Group:
IIIA
= *Volatile fuels, etc.
IIIB
= *Non-conductive powder, etc.
IIIC
= *Conductive powder, etc.
*Example of Representative trigger pow-
ders.
Method of protection:
see list below.
Equipment protection level:
Gb =
Protection Level b for Gas
Db =
Protection Level b for Powders
in accordance with EN 80079-37
CE Mark
Identification Number
of the Notified Body
Equipment use in a
potentially explosive atmosphere
Group
Equipment:
M1
= protection
very high
M2
= protection
high
1
= protection
very high
2
= protection
high
3
= protection
normal
Group
Equipment
for surface:
I
= Mines
II
= Surface
Type atmosphere
explosive
(group II):
G D
Vapours Powders
of Gas
0 20
1 21
2 22