Pumps Resorting Under The 2014/34/Ec Directive (Atex) - Packo AX Instruction Manual

2.4. Pumps resorting under the 2014/34/EC directive (ATEX)

PACKO pumps according to 2014/34/
EC are designed and manufactured
to reduce as much as possible the
risk of explosion. Nevertheless, the degree of
explosion safety of the pump in the installation
can only be assured by the joint precautionary
measures of the pump constructor PACKO and
the user.
The table below shows an overview of the risks
by pump type and whether the pumped liquid is
inflammable, as well as the preventive measures
available.
Pump
Liquid
Non-ignitable
Ignitable liquid
Non-combustible
Normal-priming pumps are pumps from the
series FP, NP, ICP, PHP, MCP, MFP, MWP, FPP,
IPP, SFP, FMS and NMS.
Air-handling pumps are pumps from the series
CRP, IRP, and PRP.
Self-priming pumps are pumps from the series
MSP.
The flashpoint of a liquid is the lowest tempera-
ture at which sufficient vapour is created above
a liquid so that it can ignite when mixed with air.
Dry-running
Risk
mechanical seal
(Friction faces
overheated are
source of ignition)
Flushed seal
or temperature
liquid
control of seal or
flow monitor by
Flushed seal
liquid
The cells in the table where the text is italicized
indicate the absence of the risk.
The cells in the table where the text is in bold
indicate risks prevented by modifications to the
pump by the constructor PACKO. The modifica-
tions can only prevent the risk through proper
use by the end-user.
The cells in the table where the text is underlined
indicate risks that the user must avoid.
Operating with
closed valve
(The outside wall
temperature can
be above the
temperature class)
user
Flow monitoring
by the user
A combustible liquid is not ignitable as long
as the temperature is lower than the liquid's
flashpoint. It is important to note that specific
components (primarily the mechanical seal and
the motor) of the pump can be warmer than the
temperature of the liquid being pumped. When
a mechanical seal runs dry, it becomes very hot
(up to 400°C +). As a result, a liquid with a flash-
point that is much higher than the temperature
at which it is being pumped must nevertheless
be considered as potentially inflammable when
assessing the risk of dry running of the mechan-
ical seal and the risk of leaks.
Leak
(igniting liquid can
be release into
atmosphere)
No danger
Flushed seal
or preventive
maintenance by
the user
No danger
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