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Write short note on Trouble shooting in centrifugal pumps .
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written 5.5 years ago by
teamques10
★ 64k
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• modified 5.5 years ago |
The following table identifies issues with centrifugal pumps and ways to rectify them:
| ISSUE | CAUSE | REMEDY |
|---|---|---|
| Pump fails to prime or loses the prime | i)Air,leak in suction lines ii)Suction,strainer is clogged iii)Defective,priming valve, packing or seal | i)Clean,and tighten suction connections ii)Remove,dirt and other materials from strainer iii)Replace the defective part |
| No discharge from pump | i)Total head is too high ii)Pump,is not properly primed iii)Impeller,or discharge line is clogged iv)Wrong,direction of rotation | i)Re-evaluate,head calculations and measure elevation differences between pump and liquid,source. ii)Re-prime,the pump iii)Back flush pump to clear obstruction iv)Check,wiring |
| Pump output is poor | i)Excessive,air in liquid ii)Impeller,is clogged iii)Wear rings are worn | i)Clean and tighten suction lines ii)Disassemble,pump or piping and clean to remove obstruction iii)Replace,the rings |
| Excessive power consumption | i)Speed,is too high ii)Driver,and pump misaligned | i)Replace motor and correct wiring ii)Realign driver with pump |
| Noisy pump | i)Worn,motor bearings ii)Magnetic,hum | i)Replace bearings ii)Replace motor |
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