Lutz Alu 41-L-DL, Перевод оригинальной инструкции

Страница: 11 / 24

11
0697-401 Pump
werke - 04/2021
en
!
CAUTION
Danger of injury due to tipping
over of empty drums and contai-
ners!
► The pump tube must always be positioned
vertically in the bunghole.
►
If necessary, use a drum adapter or emission-
proof drum adapter.
► Pump tubes with immersion depths of more
than 1200 mm (47 inches) should be fitted
with an installation flange (
→
Fig. 2, item 1).
► When installed in containers with liquids in
motion: The bottom end of the pump tube
must be secured additionally ( → Fig. 2, item
2).
5.3 Safe use
► Do not subject the outrun piece to tension or
pressure ( → Fig. 3).
► The bending moment M
B
at the outlet must
not exceed the following values:
Pump material Maximum bending
moment M
B
Polypropylene (PP) 10 Nm
Polyvinylidene fluoride
(PVDF)
20 Nm
Aluminium (Alu) 20 Nm
Stainless steel (SS
1.4571)
30 Nm
Hastelloy C (HC) 30 Nm
Tab. 5: Maximum permissible bending moment M
B
► Do not immerse the pump deeper than the
outrun piece (
→
Fig. 4).
► A foot strainer must be used when pumping
liquids containing large mechanical impurities
(e.g. fibrous materials) ( → Fig. 5).
► If the container is changed frequently and the
pump is heavy, use load handling equipment if
necessary.
6. Operation
3
All connections and fittings are properly
tightened.
NOTICE
Damage of property as a result of dry
running!
► Supervise the pump tubes or monitor with a
flow monitoring device.
► Ensure that the pump is pumping liquid.
► Pump tubes with mechanical seal never may
run dry.
- Sealless pump tubes may run dry 15 minutes
only.
6.1 Complete drainage of
container (pump tube RE)
3
Liquid flow interrupted completely
!
WARNING
Danger of injury and intoxication as a result
of splashing dangerous liquids at low level!
► Use containers with a cover.
► Tip the container up.
► Guide the intake port to the tipping point of
the container.
► End pump action: Close the sealing pot when
the motor is running:
- Pump tube RE SS for complete drum
drainage: Activate lever A ( → Fig 6, Item 1).
- Pump tube RE PP for complete drum
drainage: Activate lever A ( → Fig 7, Item 1).
► Switch off motor.
► Remove the pump tube and place in the next
container.