ProMinent Sigma 1 Basic Operating Instructions Manual page 23

Tab. 1: Example of the division of gases into explosion groups and temperature classes
IIC
IIB
IIA
T4
-
Ethyl ether
Acetaldehyde Benzine,
Diesel fuel,
Aircraft fuel,
Heating oils,
n-hexane
T3 T2
- Ethyne
- Ethene
Ethanol,
n-butane,
n-butyl alcohol
WARNING!
Example 2
The pump label corresponds to "Unit group" II: the pump
may only be used in overground production systems,
which are not at risk from firedamp.
The pump label states e.g. "Explosion group" IIC and
"Temperature class" T4:
Ä Tab. 1 'Example of the division of gases into explo‐
sion groups and temperature classes' on page 23 shows
the following: the pump can be used for all gases in the
table or comparable substances but not for "Tempera‐
ture classes" T5 and T6 - refer to the corresponding
material safety data sheets.
The pump label is e.g. "EPL" Gb: the potentially explo‐
sive atmosphere may only occur in normal operation and
with expected faults. The pump in the example would
also be suitable for "EPL" Gc: the potentially explosive
atmosphere may only occur in normal operation.
Safety chapter
T1
Hydrogen
Mains gas (coal gas)
Acetone,
Ammonia,
Benzene (pure),
Acetic acid,
Ethane,
Ethyl acetate,
Carbon oxide,
Methanol,
Propane,
Toluene
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