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Contact
Addr:ZhenBei Road, Putuo District, Shanghai, No. 915 (Jinshajiang Junction)
Tel:+86 21 3251 3913
Fax:+86 21 3251 3912
Email:info@yzvacuum.com
Pump common faults and their solutions
Add Time : 2013-11-13 16:25:49   Views : 1765
No
Failure
Reason
Workaround
1Pump does not absorb water, violent swing gauge, vacuum gauge pointer.Perfusion pump water shortage; plot pump air; suction pipe and tube sheet leak.  Enough to pump irrigation water; inspection lines, eliminate leakage factor.
2Vacuum gauge indicates high vacuum degree, still absorbent.Bottom valve did not open or severe blockage; big water pipe resistance; Suction height too high.Check the bottom valve repair, remove the blockage; clean or replace the suction pipe; reduce suction height.
3Outlet pressure gauge indicates the pressure, the pump no water or very little water.Outlet resistance is large; turning right; impeller clogged.Check or replace the coarse outlet; checking motor rotation; cleaning impeller.
4Flow is lower than expected values.Impeller clogged.Cleaning impeller.
5Pump power consumption is too large.
Mechanical seal stuck; loose impeller, the impeller or shaft surface damage; pump actual amount of traffic.
Check and replace mechanical seals; remove the impeller shaft for inspection; off a small water valve, reducing the flow.
6Pump vibration, noise.Pump shaft and motor shaft misalignment; bearings badly worn; pump cavitation.The pump and motor shaft centering; replace bearings; eliminate cavitation, can be taken off a small water valve, reducing pumping height and other measures.
7Pump sound unusual, no water pump.Too much traffic; too much resistance in the suction pipe, suction height is too high, water at air infiltration; the transmission fluid temperature.Off a small valve to reduce the flow of water; checking the suction pipe, check valve at the end, to reduce suction height, tighten the wire blocking the entrance; reduce the transmission fluid temperature.
8Bearing heating oil chamber no oil or lubricating oil is not enough; bearings badly worn; pump shaft and motor shaft misalignment.
Oiling; the pump and motor shaft centering.
Replace the bearings.
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Tel : +86 21 3251 3913    Website : Http://www.yzvacuum.com   Email :info@yzvacuum.com
Addr :ZhenBei Road, Putuo District, Shanghai, No. 915 (Jinshajiang Junction)



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