WARNING!
ATEX pumps in areas at risk from explosion
– A flow control is needed to stop the pump as
soon as no flow is detected.
WARNING!
ATEX pumps and flammable media
Only with material versions PP_, PV_ and PC_:
The ignition temperature is reduced significantly
below the ignition temperature at atmospheric
pressure due to compression with the discharge
stroke of the possibly ignitable vapour-air mixture.
– Do not allow it to run dry. Take appropriate pro‐
tective measures.
– Immediately switch off the pump in the event of
a diaphragm rupture.
WARNING!
ATEX pumps in areas at risk from explosion
If feed chemicals are metered, which tend to pro‐
duce exothermic reactions or self-ignite, they can
lead to high temperatures and ignition.
– Put in place measures in accordance with EN
80079-38.
WARNING!
ATEX pumps in areas at risk from explosion
– Electrically connect the electrical units listed on
the earthing diagram in the appendix, cleanly
and permanently, to an electrically clean
earthing point, - e.g., with an earthing bar on
your system.
– Electrically connect the electrical units fitted
with a potential equalisation cable to each
other, cleanly and permanently, to an electri‐
cally clean potential equalisation point - e.g.,
with a potential equalisation bar on your
system.
– Note the enclosed documentation for the indi‐
vidual electrical components.
WARNING!
ATEX pumps in areas at risk from explosion
– Use a suitable motor protection switch to pro‐
tect power end motors. Use motor protection
approved for this application with Ex"e" motors.
(Protection against warming caused by over‐
loading)
– Provide a time-delay residual current device.
– Observe the enclosed operating instructions for
the Ex motor.
Safety chapter
18
