Operations & maintenance manual – ASTRA evo (DDE)
ARGALAIR 2020 | Rev. 6
5
0.4.1 ENVIRONMENTS IN DANGER OF EXPLOSION - ATEX DIRECTIVE
ASTRA evo pumps
(
ATEX version
) fulfill the requirements of ATEX Directive
2014/34/EU
with the following
rating:
II 2/2
GD
IIB
c
T4
Equipment group II:
machines intended for use on the surface (not in mines).
Category group 2:
equipment that guarantee a high level of protection.
II 2/2 GD
The first number indicates that the internal space of the equipment is intended to be used to transfer potentially
explosive fluids (see characteristics
zone 1
/
zone 21
). The second number indicates that the external surface of the
equipment is suitable for use in areas where during normal activities the formation of an explosive atmosphere
consisting in a mixture of air and flammable substances in the form of gas, vapor or mist is likely (
ZONE 1
). The explosive
atmosphere may also be in the form of cloud of combustible dust in the air (
ZONE 21
: area in which the formation of
an explosive atmosphere is likely to occur occasionally during normal activities).
IIB
Group related to fluids classified with
IIB
excluding the following products (Hydrogen, Acetylene, Carbon Disulfide).
c
Non-electrical equipment intended for use in explosive atmospheres, designed according to the criterion of
constructional safety
c
:
UNI CEI EN ISO 80079-37:2016: Explosive atmospheres - Part 37: Non-electrical equipment for
explosive atmospheres - Non-electrical type of protection constructional safety “c”.
T4
Class of assigned temperature (
maximum surface temperature 135°C
). The processed fluid temperature must fall
within such class range and the user must comply with the instructions containing in the manual and with the current
laws. Furthermore, the user must take into account the ignition point of the gases, vapors and mists in addition to
clouds of combustible powder in the air existing in the area of use.
ASTRA evo pumps
(
STANDARD version
) fulfill the requirements of ATEX Directive 2014/34/EU with the following
rating:
II 3/3
GD
IIB
c
T4
Equipment group II:
machines intended for use on the surface (not in mines).
Category group 3:
equipment that guarantee a normal level of protection.
II 3/3 GD
The first number indicates that the internal space of the equipment is intended to be used to transfer potentially
explosive fluids (see characteristics
zone 2
/
zone 22
). The second number indicates that the external surface of the
equipment is suitable for use in areas where during normal activities the formation of an explosive atmosphere
consisting in a mixture of air and flammable substances in the form of gas, vapor or mist is unlikely (
ZONE 2
) and - if it
occurs - is only of short duration. The explosive atmosphere may also be in the form of cloud of combustible dust in the
air (
ZONE 22
: area in which the formation of an explosive atmosphere is unlikely to occur during normal activities).
IIB
Group related to fluids classified with
IIB
excluding the following products (Hydrogen, Acetylene, Carbon Disulfide).
c
Non-electrical equipment intended for use in explosive atmospheres, designed according to the criterion of
constructional safety
c
:
UNI CEI EN ISO 80079-37:2016: Explosive atmospheres - Part 37: Non-electrical equipment for
explosive atmospheres - Non-electrical type of protection constructional safety “c”.
T4
Class of assigned temperature (
maximum surface temperature 135°C
). The processed fluid temperature must fall
within such class range and the user must comply with the instructions containing in the manual and with the current
laws. Furthermore, the user must take into account the ignition point of the gases, vapors and mists in addition to
clouds of combustible powder in the air existing in the area of use.
So it’s specified that the
WRN - FCN - ALN - SSN - SPN
pumps, according to the ATEX Directive, belong to
category 3
, for which they are intended to operate in potentially explosive environments classified as
zone 2.
Also available are
WRX - FCX - ALX - SSX - SPX
pumps, suitable to operate in potentially explosive
environments classified as
zone 1
.
Содержание ASTRA Evo DDE 030
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