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End Suction Centrifugal
Fault
Low flow rate continued
Water comes out initially
and then stops abruptly.
Power surge
The bearings are
overheating.
EBARA
PUMPS AMERICAS CORPORATION
www.pumpsebara.com
(t) 803.327.5005
Causes
- Leakage in the delivery pipe.
- Impeller worn.
- Significant head losses in the
system.
- Liquid temperature very high. The
liquid is volatile.
- Cavitation.
- The pump has not been primed.
- Air entering the system.
- Air bubbles in the suction pipes.
- The suction head is too high for
the pump.
- The voltage is low or the
imbalance between the phases is
high.
- The flow rate is too high or the
head is too low.
- Foreign bodies inside the pump.
- The mechanical seal was not
fitted correctly.
- Bearings damaged.
- Friction in the rotation areas. The
shaft is bent.
- The direction of rotation is not
correct.
- The density and/or viscosity level
of the liquid is high.
- Bearings damaged.
- In operation for a long time with
the valve closed or half-closed.
(f) 803.327.5097
GS Series
Measures to be taken
- Check and repair.
- Check the impeller.
- Review the project.
- Review the project.
- Seek expert advice.
- Prime the pump correctly.
- Check and repair the suction
pipe and shaft seal.
- Vent the pipes.
- Review the project.
- Check the power supply.
- Partially shut off the delivery valve.
- Remove foreign bodies.
- Fit it correctly.
- Replace the bearings.
- Repair in specialist workshop.
- Check and correct the
connection.
- Review the project.
- Replace the bearings.
- Avoid such a situation; close the
valve or stop the pump.
16
rev. 03/22
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