Ⅰ. Insufficient Flow Rate – Causes & Remedies
Possible Causes:
1.Impeller wear, broken vanes, or clogged impeller
2.Blocked inlet/outlet pipelines or valves
3.Excessive wear of the impeller sealing ring, damaged pump chamber gaskets, or worn sliding bearings
4.Incorrect rotation direction
5.Excessive pressure during suction
6.Inadequate liquid filling in the suction line
7.Liquid density exceeds specified value
Recommended Solutions:
1.Replace the impeller or clear blockages
2.Clean pipelines and valves to remove debris
3.Replace sealing rings and gaskets
4.Adjust rotation direction (standard: clockwise)
5.Fully prime the suction line, vent air before startup
6.Ensure liquid density complies with specifications
