Operation
6.2.3 Switching off
WARNING
Risk o f injury due to hot pump parts!
Use protective equipment when carrying out any work on
the pump.
NOTE
Material damage due to deposits!
If the pumped liquid has crystallized, polymerized or solid-
ified
–Flushthepump
– Ensure that the flushing medium is compatible with the
pumped liquid
1. Switch off the motor.
2. If there is no non-return valve in the pressure line: Close
the pressure-side fitting.
3. If necessary: Flush and empty the pump.
6.3 Shutting down the pump
WARNING
Risk of injury and poisoning due to hazardous pumped
liquids!
Safely collect any leaking pumped liquid and dispose of it
in accordance with envi ronmental rules and req uirements.
Take the f ollowing measures whenever the pump is shut
down:
Pump is Measure
...shut down
for a prolonged
period
Take measures according to
the pumped liqui d (→ Tab le
7 Me asures depending on the
behavior of the pumped liquid,
Page 20).
...emptied
Close the suction-side and
pressure-side fittings.
...dismounted
Isolate the motor from its power
supply and secure it against
unauthorized switch-on.
...put into
storage
Follow the storage instructions
(→ 4.3 Storage, P age 13).
Tab. 6 Measures to be taken if the pump is shut down
Duration of shu t down (dep ending
on process)
Behavior o f the
pumped liquid
Short
Long
Solids
sedimenting
Flush the
pump.
Flush the
pump.
Solidifying/
freezing,
non-corrosive
Heat up or
empty the
pump and
containers.
Empty the
pump and
containers.
Solidifying/
freezing,
corrosive
Heat up or
empty the
pump and
containers.
Empty the
pump and
containers.
Treat the
pump and
containers
with preser-
vative.
Remains liquid,
non-corrosive
––
Remains liquid,
corrosive
–
Empty the
pump and
containers.
Treat the
pump and
containers
with preser-
vative.
Tab. 7 Measures depending on the behavior
of the pumped liquid
20 SPF series BA-2014.01 626.0005 GB – 550 041
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