18
WARNING
Hazard of pressure
∀
∀
∀
3.
Check the pump for vibration. Excessive vibration suggests cavitation or foreign particles
in the impeller (see
4.
7.4
Possible malfunction when putting the pump into operation
If the motor circuit
1.
2.
3.
If the pump delivers for a short period of time only and then stops pumping, the magnetic
co
chapter
8. Shut
1.
2.
3.
4.
5.
6.
NOTE
Secure all valves to
Always wear personal protective equipment!
WARNING
Hazard of pressure
Use a manometer at the discharge line to check the system pressure and prevent it from going beyond
its limit specified in the technical data sheet (see Appendix).
If the system pressure is too high, the rear casing may burst releasing fluid.
When pressure testing the piping, take into account the maximum system pressure
pump as well, if
3. Check all screw joints and union pieces of the
Check the pump for vibration. Excessive vibration suggests cavitation or foreign particles
in the impeller (see
4. Make sure that the power input of the motor is less than or equal to the rated current
given on the motor’s nameplate.
If the power input is too high
side or decrease the density of the fluid, if possible.
Possible malfunction when putting the pump into operation
If the motor circuit
1. Before switc
2. Make sure that the suction line and the pump housing are filled with fluid.
3. Switch on the motor.
If the pump delivers for a short period of time only and then stops pumping, the magnetic
coupling has been overloaded and disengaged. In this case, follow the instructions of
chapter 10: Troubleshooting
Shut-down procedure
1. Switch off the motor.
2. Close the shut
3. When some fluid remains within the
accidental opening.
4. In case of crystalli
fluids against frost.
5. If the pump will be out of operation for a longer period of time, thoroughly rinse
with a clean and neutral liquid to prevent remaining fluid from depositing within the
pump and at the sleeve bearings.
6. In case the pump is shut down for repair or maintenance work, lock the driving unit
so that it cannot be switched on. Before dism
and discharge lines and empty the pump housing under monitored conditions.
NOTE
Secure all valves to
Always wear personal protective equipment!
Hazard of pressure
Use a manometer at the discharge line to check the system pressure and prevent it from going beyond
its limit specified in the technical data sheet (see Appendix).
If the system pressure is too high, the rear casing may burst releasing fluid.
When pressure testing the piping, take into account the maximum system pressure
pump as well, if possible.
Check all screw joints and union pieces of the
Check the pump for vibration. Excessive vibration suggests cavitation or foreign particles
in the impeller (see
∑
chapter
Make sure that the power input of the motor is less than or equal to the rated current
given on the motor’s nameplate.
If the power input is too high
side or decrease the density of the fluid, if possible.
Possible malfunction when putting the pump into operation
If the motor circuit-breaker switches off the motor, proceed as follows:
Before switching on the motor again, check whether the impeller turns readily.
Make sure that the suction line and the pump housing are filled with fluid.
Switch on the motor.
If the pump delivers for a short period of time only and then stops pumping, the magnetic
upling has been overloaded and disengaged. In this case, follow the instructions of
down procedure
Switch off the motor.
Close the shut-off valves.
When some fluid remains within the
accidental opening.
In case of crystallizing fluids, heat both the pump and the piping. Protect freezing
fluids against frost.
If the pump will be out of operation for a longer period of time, thoroughly rinse
with a clean and neutral liquid to prevent remaining fluid from depositing within the
pump and at the sleeve bearings.
In case the pump is shut down for repair or maintenance work, lock the driving unit
so that it cannot be switched on. Before dism
and discharge lines and empty the pump housing under monitored conditions.
Secure all valves to prevent an accidental opening!
Always wear personal protective equipment!
Use a manometer at the discharge line to check the system pressure and prevent it from going beyond
its limit specified in the technical data sheet (see Appendix).
If the system pressure is too high, the rear casing may burst releasing fluid.
When pressure testing the piping, take into account the maximum system pressure
.
Check all screw joints and union pieces of the
Check the pump for vibration. Excessive vibration suggests cavitation or foreign particles
chapter 10:
Make sure that the power input of the motor is less than or equal to the rated current
given on the motor’s nameplate.
If the power input is too high, reduce the delivery rate of the pump at the discharge
side or decrease the density of the fluid, if possible.
Possible malfunction when putting the pump into operation
breaker switches off the motor, proceed as follows:
hing on the motor again, check whether the impeller turns readily.
Make sure that the suction line and the pump housing are filled with fluid.
Switch on the motor.
If the pump delivers for a short period of time only and then stops pumping, the magnetic
upling has been overloaded and disengaged. In this case, follow the instructions of
Troubleshooting (see page
down procedure
Switch off the motor.
off valves.
When some fluid remains within the
ing fluids, heat both the pump and the piping. Protect freezing
If the pump will be out of operation for a longer period of time, thoroughly rinse
with a clean and neutral liquid to prevent remaining fluid from depositing within the
pump and at the sleeve bearings.
In case the pump is shut down for repair or maintenance work, lock the driving unit
so that it cannot be switched on. Before dism
and discharge lines and empty the pump housing under monitored conditions.
prevent an accidental opening!
Always wear personal protective equipment!
Use a manometer at the discharge line to check the system pressure and prevent it from going beyond
its limit specified in the technical data sheet (see Appendix).
If the system pressure is too high, the rear casing may burst releasing fluid.
When pressure testing the piping, take into account the maximum system pressure
Check all screw joints and union pieces of the
Check the pump for vibration. Excessive vibration suggests cavitation or foreign particles
Make sure that the power input of the motor is less than or equal to the rated current
given on the motor’s nameplate.
, reduce the delivery rate of the pump at the discharge
side or decrease the density of the fluid, if possible.
Possible malfunction when putting the pump into operation
breaker switches off the motor, proceed as follows:
hing on the motor again, check whether the impeller turns readily.
Make sure that the suction line and the pump housing are filled with fluid.
If the pump delivers for a short period of time only and then stops pumping, the magnetic
upling has been overloaded and disengaged. In this case, follow the instructions of
(see page 28).
down procedure
When some fluid remains within the pump, secure the shut
ing fluids, heat both the pump and the piping. Protect freezing
If the pump will be out of operation for a longer period of time, thoroughly rinse
with a clean and neutral liquid to prevent remaining fluid from depositing within the
pump and at the sleeve bearings.
In case the pump is shut down for repair or maintenance work, lock the driving unit
so that it cannot be switched on. Before dism
and discharge lines and empty the pump housing under monitored conditions.
prevent an accidental opening!
Always wear personal protective equipment!
Use a manometer at the discharge line to check the system pressure and prevent it from going beyond
its limit specified in the technical data sheet (see Appendix).
If the system pressure is too high, the rear casing may burst releasing fluid.
When pressure testing the piping, take into account the maximum system pressure
Check all screw joints and union pieces of the piping system for leakage.
Check the pump for vibration. Excessive vibration suggests cavitation or foreign particles
Make sure that the power input of the motor is less than or equal to the rated current
, reduce the delivery rate of the pump at the discharge
side or decrease the density of the fluid, if possible.
Possible malfunction when putting the pump into operation
breaker switches off the motor, proceed as follows:
hing on the motor again, check whether the impeller turns readily.
Make sure that the suction line and the pump housing are filled with fluid.
If the pump delivers for a short period of time only and then stops pumping, the magnetic
upling has been overloaded and disengaged. In this case, follow the instructions of
pump, secure the shut
ing fluids, heat both the pump and the piping. Protect freezing
If the pump will be out of operation for a longer period of time, thoroughly rinse
with a clean and neutral liquid to prevent remaining fluid from depositing within the
In case the pump is shut down for repair or maintenance work, lock the driving unit
so that it cannot be switched on. Before dismantling the pump, shut off the suction
and discharge lines and empty the pump housing under monitored conditions.
Use a manometer at the discharge line to check the system pressure and prevent it from going beyond
If the system pressure is too high, the rear casing may burst releasing fluid.
When pressure testing the piping, take into account the maximum system pressure
piping system for leakage.
Check the pump for vibration. Excessive vibration suggests cavitation or foreign particles
Make sure that the power input of the motor is less than or equal to the rated current
, reduce the delivery rate of the pump at the discharge
Possible malfunction when putting the pump into operation
breaker switches off the motor, proceed as follows:
hing on the motor again, check whether the impeller turns readily.
Make sure that the suction line and the pump housing are filled with fluid.
If the pump delivers for a short period of time only and then stops pumping, the magnetic
upling has been overloaded and disengaged. In this case, follow the instructions of
pump, secure the shut-off valves to prevent an
ing fluids, heat both the pump and the piping. Protect freezing
If the pump will be out of operation for a longer period of time, thoroughly rinse
with a clean and neutral liquid to prevent remaining fluid from depositing within the
In case the pump is shut down for repair or maintenance work, lock the driving unit
antling the pump, shut off the suction
and discharge lines and empty the pump housing under monitored conditions.
Use a manometer at the discharge line to check the system pressure and prevent it from going beyond
When pressure testing the piping, take into account the maximum system pressure, but do not test the
piping system for leakage.
Check the pump for vibration. Excessive vibration suggests cavitation or foreign particles
Make sure that the power input of the motor is less than or equal to the rated current
, reduce the delivery rate of the pump at the discharge
Possible malfunction when putting the pump into operation
breaker switches off the motor, proceed as follows:
hing on the motor again, check whether the impeller turns readily.
Make sure that the suction line and the pump housing are filled with fluid.
If the pump delivers for a short period of time only and then stops pumping, the magnetic
upling has been overloaded and disengaged. In this case, follow the instructions of
off valves to prevent an
ing fluids, heat both the pump and the piping. Protect freezing
If the pump will be out of operation for a longer period of time, thoroughly rinse
with a clean and neutral liquid to prevent remaining fluid from depositing within the
In case the pump is shut down for repair or maintenance work, lock the driving unit
antling the pump, shut off the suction
and discharge lines and empty the pump housing under monitored conditions.
Use a manometer at the discharge line to check the system pressure and prevent it from going beyond
do not test the
Check the pump for vibration. Excessive vibration suggests cavitation or foreign particles
Make sure that the power input of the motor is less than or equal to the rated current
, reduce the delivery rate of the pump at the discharge
Possible malfunction when putting the pump into operation
hing on the motor again, check whether the impeller turns readily.
If the pump delivers for a short period of time only and then stops pumping, the magnetic
upling has been overloaded and disengaged. In this case, follow the instructions of
∑
off valves to prevent an
ing fluids, heat both the pump and the piping. Protect freezing
If the pump will be out of operation for a longer period of time, thoroughly rinse it off
with a clean and neutral liquid to prevent remaining fluid from depositing within the
In case the pump is shut down for repair or maintenance work, lock the driving unit
antling the pump, shut off the suction
and discharge lines and empty the pump housing under monitored conditions.
If the pump delivers for a short period of time only and then stops pumping, the magnetic