6 Commissioning/Start-up/Shutdown
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EtaLine Pro
1168.87/01-EN
6.1.5 Start-up
DANGER
Non-compliance with the permissible pressure and temperature limits if the pump
is operated with the suction and discharge lines closed.
Leakage of hot or toxic fluids!
▷
Never operate the pump with the shut-off elements in the suction line and/or
discharge line closed.
▷
Only start up the pump set with the discharge-side gate valve slightly or fully
open.
DANGER
Excessive temperatures due to dry running or excessive gas content in the fluid
handled
Explosion hazard!
Damage to the pump set!
▷
Never operate the pump set without liquid fill.
▷
Prime the pump as per operating instructions.
▷
Always operate the pump within the permissible operating range.
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 any) have been vented and primed with
the fluid to be handled.
ü
The priming and venting lines have been closed.
1. Fully open the shut-off element in the suction head line/suction lift line.
2. Close or slightly open the shut-off element in the discharge line.
3. Start up the pump set.
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.
DANGER
Seal leakages at operating temperature
Leakage of hot or toxic fluid handled!
▷
Once the operating temperature has been reached, re-tighten the hexagon
socket head cap screws between casing and casing cover.
6.1.6 Checking the shaft seal
Mechanical seal
The mechanical seal only leaks slightly or invisibly (as vapour) during operation.
Mechanical seals are maintenance-free.