6.1.9 Heating up/keeping warm the pump (set)
CAUTION
Pump blockage
Damage to the pump!
▷ Prior to pump start-up, heat up the pump as described in the manual.
Observe the following when heating up the pump (set) and keeping it warm:
▪ Make sure that the temperature is increased continuously.
▪ Max. heating speed: 10 °C/min (10 K/min)
When the pump is used for handling fluids at temperatures above 150 °C make sure
that the pump has been heated throughout before starting it up.
The temperature difference between the pump's surface and the fluid handled must
not exceed 100 °C (100 K) when the pump is started up.
6.1.10 Start-up
DANGER
Non-compliance with the permissible pressure and temperature limits if the pump is
operated with the suction and/or discharge line closed.
Explosion hazard!
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 shut-off element 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. (⇨ Section 6.1.4 Page 35)
▷ 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.
✓ The system piping has been cleaned.
✓ The pump, suction line and, if applicable, inlet tank have been vented and
primed with the fluid to be handled.
✓ The lines for priming and venting have been closed.
CAUTION
Start-up against open discharge line
Motor overload!
▷ Make sure the motor has sufficient power reserves.
▷ Use a soft starter.
▷ Use speed control.
Fluid temperatures above
150 °C
Temperature difference
6 Commissioning/Start-up/Shutdown
MegaCPK
37 of 74
To Next Page
Loading...
Need help?
General
