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INDUSTRIAL PUMPS
www.
debem.com
Chapter 2 - Introductory Information
Translation of Original Instructions - BOXER rev. 2021
2.4 IECEx MARKING AND DEFINITION
All BOXER Air Pumps comply with the Community Directives for the free circulation of goods applicable
to them
(
see Declaration of Conformity
)
.
BOXER Air pumps are manufactured in CONDUCT version in IECEx execution with class
Ex h IIB T4 Gb
and
Ex h IIIB T135°C Db
.
CAUTION
The Identification Plate of the pump shows the IECEx marking and the category of the equipment.
Check com-
pliance with he classification of the installation “Zone” before carrying out the installation.
The equipment user is responsible for classifying their installation zone.
The pumps in IECEx execution are not available with Hytrel
®
components and do not have a different
use relating to the Ambient Temperature shown on the plate.
Below is the definition of the IECEx marking of each execution.
Ex h
: Protection equipment «c», «b», or «k», in accordance with EN 80079-37.
IIB
: excluding the following gases: hydrogen, acetylene, carbon disulphide.
IIIB
: excluding the following powders: conductive powder.
T4/T135°C
: class of admitted temperatures. The processed fluid temperature value must fall within such class range
and the user must comply with the instructions contained in the manual and with the current laws. Fur-
thermore, the user must take into account the ignition point of the gases, vapours and mists in addition
to clouds of combustible powder in the air existing in the area of use.
The Technical File is deposited with IEC EUROFINS (EX-3935 Certificate).
Ex h * * *
Temperature Class
(group II):
Maximum
surface
temperature
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 tem-
perature is followed by the
letter “
T”
: e.g.
T100°C.
IECEx Mark
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 powders.
Equipment
Protection level:
Gb =
Protection Level b for Gas
Db =
Protection Level b for Powders
construction type (EN 80079-37)
