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P2.x ATEX
9 Appendices
9.1 P2.2/P2.4 ATEX technical data
Technical data
Nominal voltage:
Marking:
IP rating:
Dead volume:
Weight:
Materials in contact with media
varies by configuration:
The following table describes the temperature characteristics and the resulting limits for the permissible operation of the
sample gas pumps. The temperature classes apply both to the gas in the installation area (zone) and to the explosive pumped
medium in the gas path:
Temperature
Motor ambient
class
temperature
T3
-20 °C...50 °C
T4
1)
Due to the maximum continuous operating temperature of the factory-installed plastic screw-in fittings, the maximum per-
mitted media and ambient temperature for these versions is limited to ≤ 80 °C for pumps without a bypass valve and ≤ 75 °C for
pumps with a bypass valve.
2)
At a media temperature of > 85 °C, operation with a bypass valve is only permitted in the stainless steel version.
Feed curve 400 l/h
vacuum
bar (atm.)
Nl/h
at 60Hz + 10% flow
BE420002 ◦ 07/2024
see ordering information
II 2G Ex h IIC T3/T4 Gb X
electrical IP65
mechanical IP20
8.5 ml
approx. 7.5 kg (P 2.2 ATEX)
approx. 8.5 kg (P 2.4 ATEX)
PTFE, PVDF (standard pump with 100 °C valves)
+ PEEK (standard pump with 140 °C valves)
+ FKM (standard pump with 100 °C valves and bypass valve)
+ PCTFE, FKM (standard pump with 140 °C valves and bypass valve)
+ 1.4571 (VA pump body)
+ 1.4401, FKM (VA pipe fittings)
+ FKM (VA pump body with bypass valve)
P2.2
Pump head
Media temperature
ambient
without bypass
temperature
valve
max. 50 °C
max. 140 °C
max. 90 °C
bar (g)
flow curve
bar
1)
Pump head
ambient temper-
with bypass
ature
valve
2)
max. 135 °C
max. 100 °C
max. 85 °C
max. 90 °C
Bühler Technologies GmbH
P2.4
Media temperat-
1)
ure
1)
max. 140 °C
max. 90 °C
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