BOC Edwards 18B4B, Инструкция по эксплуатации, Страница: 53 / 62

Feb 04 Issue A
18B4B Vapour Booster Pumps
PAGE
47
47
MA
IN
TE
N
A
NC
E
Pressure is unstable.
• The pump fluid-level is incorrect.
• The guard ring is incorrectly fitted/adjusted.
• The cooling-water flow is restricted.
• The pump interior assembly is assembled incorrectly.
• The cooling-water temperature is too high.
Backstreaming is excessive.
• The cooling-water temperature is too high.
• The cooling-water flow is restricted.
Pump fluid loss is excessive.
• The guard ring is incorrectly fitted/adjusted.
• The cooling-water flow is restricted.
• The cooling-water temperature is too high.
• The pump is stalled due to a high gas load or high backing
pipeline pressure.
Fault symptom Possible causes
Table 12 - Fault finding (Sheet 2 of 2)