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
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 |
| 1 | Pump 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. |
| 2 | Vacuum 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. |
| 3 | Outlet 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. |
| 4 | Flow is lower than expected values. | Impeller clogged. | Cleaning impeller. |
| 5 | Pump 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. |
| 6 | Pump 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. |
| 7 | Pump 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. |
| 8 | Bearing 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. |
