KNF LAB LABOPORT N820.18 EX Originalbetriebsanleitung Seite 72

Use
T1
I Methane
IIA Acetone
Ethane
Ethyl acetate
Ammonia
Ethyl chloride
Benzene
Acetic acid
Carbon
monoxide
Methane
Methanol
Methyl chlo-
ride
Naphthalene
Phenol
Propane
Toluene
IIB Town gas
IIC Hydrogen
Transferred
medium
Environment of
the pump
12
Chemically-resistant Laboratory pump N820.18 EX / N840.18
3.4.3 Explosion groups
Combustible gases and vapors are classified according to ex-
plosion groups(I, IIA, IIB and IIC) and temperature classes.
The following table shows the classification of the most com-
mon combustible gases and vapors.
T2 T3
– –
i-amyl acetate Gasoline
n-butane Diesel fuel
n-butyl alco- Jet fuel
hol Heating oils
Cyclohex- n-hexane
anone
1,2-
dichloroethan
e
Acetic anhy-
dride
Ethylene Hydrogen sul-
Ethyl alcohol fide
Acetylene –
Tab.5:
The classification of gases and vapors into groups with re-
spect to explosion group and temperature class applies for
the transferred medium.
The pump may only be used to transfer gases and vapors
that belong to the respective explosion group and correspond-
ing temperature class (or below) (see designation on the type
plate) or that are not explosive and combustible.
The pump must not be set up in potentially explosive areas. It
is only suitable for transferring explosive atmospheres.
Translation of Original Operating Instruction, KNF 317428-317425 05/21
T4 T5 T6
– –
Acetaldehyde –
Ethyl ether –
– –
EX
–
–
–
Carbon
disulfide