17
GA 01.600/10.02 - 07/01
Operation
2.6 Shut Down /
Shelving
During normal use of the TRIVAC D 5 E - D 16 E it will
be sufficient to electrically switch off the pump. Further
measures are not required.
After having pumped condensable media, let the pump
run for some time with the gas ballast valve open and the
intake line blocked (see Section 2.5.2).
When pumping aggressive or corrosive media and also
in the case of long process interruptions (overnight, for
example) we recommend that you let the pump run with
the intake line sealed and with the gas ballast switched
on.
This helps to prevent the occurrence of standstill corro-
sion.
If the pump is to be switched off for a longer period of
time after it has been pumping aggressive or corrosive
media or if the pump is to be shelved, proceed as
follows:
When hazardous substances have been
pumped ensure that the appropriate safety
precautions are observed.
For more information please contact our
technical sales department.
Seal off the intake port. The use of special conservation
or anti-corrosion oils is not required.
2.6.1 Shut Down through Monitoring
Components
When the pump has been switched off due
to overheating sensed by the motor coil pro-
tector (single phase pumps only), the pump
must only be started manually after the
pump has cooled down to the ambient tem-
perature and after having removed the
cause first.
2.6.2 Failure of the Control System
or the Mains Power
In order to prevent the pump from running
up unexpectedly after a mains power fail-
ure, the pump must be integrated in the
control system in such a way that the pump
can only be switched on again manually.
This applies equally to emergency cut-out
arrangements.
Warning
Warning
Warning
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