SystemAir PRF 125D2 Betriebsanleitung Seite 43

Designation
Group
Temperature
class
Table 3: Marking
1.6.5 Chemical components
The standard variants of the plastic used are polyethylene (PE) and polypropylene (PP).
As a matter of principle, the rotor material is the indicator for the selection.
NOTE
The following list has been produced to the best of our knowledge, all statements without guarantee
for correctness and completeness. Examination of the media to be transported is a matter for the plant
operator. Here, it is merely a question of a recommendation. We recommend not selecting pairs of sub-
stances manifesting a „0" in conduct.
Fan types PRF and PRF EX - 10.2013
II IIA Propane
IIB Ethylene
IIC Hydrogen
T1 450 °C I: Methane
IIA: Acetone, ammoniac, methane, methanol, propane,
toluene
IIB: Town gas
IIC: Hydrogen
T2 300 °C IIA: Ethyl alcohol, n-butane
IIB: Ethylene
IIC: Acetylene
T3 200 °C IIA: Otto fuels, diesel fuels, heating oils
IIB: Hydrogen sulphide
T4 135 °C IIA: Acetaldehyde, ethyl ether
Marking
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