How to troubleshoot and maintain SB electric liquid pump?

SB electric liquid pumps are widely used in chemical and petroleum industries for fluid transfer. This article provides troubleshooting guidance based on technical specifications.

Common issues include failure to start, which may be caused by power supply problems or motor overload. Check voltage (0.88-1.1kW range) and wiring connections first. Flow reduction often results from clogged filters or worn impellers - clean filters and inspect 25mm diameter pipelines.

Excessive noise during operation typically indicates bearing wear (10000-12000r/min speed) or cavitation. Measure bearing clearance and replace if over 0.1mm. Regular maintenance includes weekly lubrication checks and quarterly seal replacement.

For corrosive media applications, use 316L stainless steel models and flush with clean water after use. Seals should be replaced every 2-3 months when handling acids or alkalis to prevent premature failure.