6 Commissioning/Start-up/Shutdown
21 of 40
Emporia MB
CAUTION
Abnormal noises, vibrations, temperatures or leakage
Damage to the pump!
▷
Switch off the pump (set) immediately.
▷
Eliminate the causes before returning the pump set to service.
ü
The system piping has been cleaned.
ü
The pump, suction line and inlet tank, if fitted, have been vented and primed
with the fluid to be pumped.
ü
The lines for priming and venting have been closed.
1.
Fully open the shut-off element in the suction head/suction lift line.
2.
Close or slightly open the shut-off element in the discharge line.
3.
Start up the motor.
4.
Immediately after the pump has reached full rotational speed, slowly open the
shut-off element in the discharge line and adjust it to comply with the duty
point.
6.1.4 Checking the shaft seal
Mechanical seal
The mechanical seal only leaks slightly or invisibly (as vapour) during operation.
Mechanical seals are maintenance-free.
6.1.5 Shutdown
CAUTION
Heat build-up inside the pump
Damage to the shaft seal!
▷
Depending on the type of installation, the pump set requires sufficient after-
run time – with the heat source switched off – until the fluid handled has
cooled down.
ü
The shut-off element in the suction line is and remains open.
1.
Close the shut-off element in the discharge line.
2.
Switch off the motor and make sure the pump set runs down smoothly to a
standstill.
NOTE
If the discharge line is equipped with a check valve, the shut-off element in the
discharge line may remain open, provided the site's requirements and regulations
are taken into account and observed.
For prolonged shutdown periods:
1.
Close the shut-off element in the suction line.
CAUTION
Risk of freezing during prolonged pump shutdown periods
Damage to the pump!
▷
Drain the pump and protect it against freezing.
Summary of Contents for Emporia MB
Page 1: ...Multistage Horizontal Centrifugal Pump Emporia MB Installation Operating Manual...
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