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Installation, Operating and Maintenance Instruction
The pump and motor should run evenly and
without vibrations; check at least once a week.
6.4.1 Flow min. / max.
If no other data are given in the curves or data sheets,
the following is valid:
Q
= 0,1 x Q
for for short time operation
min
BEP
Q
= 0,3 x Q
for continuous operation
min
BEP
Q
= 1,2 x Q
for continuous operation *)
max
BEP
Q
= Flow in efficiency optimum
BEP
*) on condition that NPSH
facility
6.4.2 Abrasive Media
On pumping liquids with abrasive components
an increased wear at hydraulic and shaft sealing
must be expected. The intervals of inspection
should be reduced compared to the usual
times.
6.4.3 Permitted number of starts
With electric motors, the permitted number of starts is
given in the attached motor operating instructions.
If no values for the switching frequency are given in
the motor operating manual, the values according to
Diagram 7 apply.
3
100,0
10,0
1,0
1
10
Motor power [kW]
If two different figures are given, the lower figure is
valid.
6.5 Lubrication of Bearings
Grease Lubrication – MPV Design Only
For quality of grease refer to chapter 7.4.
For quantity of grease refer to chapter 7.4.
The bearings are already filled with lithium based
grease at the factory and are thus ready for use.
The grease provided is suitable for a temperature
range from -30° to +90° C (measured at surface of
bearing bracket).
Re-lubrication via the two grease nipples (G).
Bearing
temperature
bracket) should lie max. 50° C over ambient
temperature and must not exceed 90° C, control
MPB 100-english
Article No 771074115
> (NPSH
+ 0,5 m)
pump
100
Diagram 7
(measured
at
bearing
page 85
weekly at least. On grease lubrication the bearing
temperature can temporarily be higher by 5-10° C
after regreasing, till a possible surplus of grease in
the bearings is cut.
6.6 Monitoring
In
areas
recommended to monitor the temperature of the
bearings and the vibrations of the bearing
bracket.
Regular monitoring and maintenance will extend
the life of your pump or pump system.
Check pump for leaks at least once a week.
On packing, check quantity of leakage at least
once a week (see chapter 6.2 section "Packing").
Check the regulating and monitoring devices of
any sealing, flushing or cooling systems once a
week to ensure that they function properly.
Outgoing cooling water should be hand warm.
With double mechanical seals, monitor pressure
and flow rate in mechanical seal area; check at
least once a week.
Pumps which are exposed to corrosive chemicals
or to wear through abrasion must be inspected
periodically for corrosion or wear and tear. The
first inspection should be carried out after six
months. All further inspection intervals should be
determined on the basis of the state of the pump.
6.7 Shutting down
Close the valve in discharge pipe right before
(max. 10 seconds) switching off the motor. This is
not necessary if there is a spring-loaded check
valve.
Switch off motor (make sure it runs down quietly).
Close the valve on suction side.
Close auxiliary systems. Do not shut down cooling
system until pump has cooled down.
1000
If there is any risk of freezing, empty pump,
cooling areas and pipes completely.
If the pump also remains under operating
conditions (pressure and temperature) when
stationary, leave all sealing, flushing and cooling
systems switched on.
The shaft sealing must remain sealed if there is a
risk of air being sucked in (in the event of supply
from vacuum systems or parallel operation with
shared suction pipe).
6.8 Storage / longer periods of non-
operation
6.8.1 Storage of new pumps
If the putting into operation shall happen a longer
period after the delivery, we recommend the following
measures for the storage of the pump:
Store pump at a dry place.
Rotate pump by hand at least once a month.
Model MPB, MPV
endangered
to
explosion
it
is
Revision 01
Issue 12/2006
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