10
Pump
Start
NOT
E
The equipment should operate by controlling the flow, discharge pressure and motor speed mentioned within the
operating curve of the equipment, based on this the pump should not work in a range less than 25% at the highest
efficiency point (BEP).
Prime the pump when it is to be put into operation.
The water leaking from the stuffing box is warmer than the water flowing through the pump due to the friction between
the jacket and the packing installed inside the system. If the water leakage through the stuffing box is very low and
causes smoke or steam, the pump should be stopped and its installation checked.
Abnormal start-up
If the pump does not prime, it may be due to one or more of the following causes:
- Pulp accumulation in the suction pipe.
- Air entering the packing press.
- Impeller blockage by oversize or oversize solid material (clogging).
- Blockage in the discharge duct either by oversize particles, flow velocity less than the settling velocity or by the
discharge angle of the line.
5.5
Shutdown Procedure
Before turning off the pump, you should let it run for a short period only with clean water to free the system of
impurities, then turn off the control panel equipment to finally and after a while at lower power stop the water system
seal.
Pump Start
Summary of Contents for 100/75 HAD
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