EBARA GS Series, Инструкция по эксплуатации, установке и техническому обслуживанию

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