Identifying and Diagnosing Pump Issues

If you're trying to write a defensible site rule for pump minimum flow, ignore the "always run at 25% of BEP" myth. There is no universal percentage that protects every pump. Low-flow damage can start quickly, but the failures show up later—seal life shortens, bearings heat up, vibration creeps, and you get blamed for "bad seals."

Two open loops we'll close:

1. There are two minimum-flow limits, not one—and the governing limit is the one that matters.
2. You'll get a laminatable diagnostic checklist...

When a centrifugal pump drifts off its curve during a production shift, every minute costs tonnage. You need a fast, structured way to isolate the fault, stabilize the system, and decide what to fix now versus what can wait for a planned stop. This guide gives you a field-first process, symptom-focused diagnostics, and practical steps for slurry and process water services in mines and mineral plants. This quick guide focuses on centrifugal pump troubleshooting in field conditions.

You will see repeated...

You already pay for every kilowatt that passes through your pumps. The fastest way to lower that bill is to spot where energy is disappearing and fix the obvious culprits first. With a few quick tests and a practical eye on the pump curve and the performance curve, you can make meaningful optimization cuts without tearing apart your system.

The goal is simple: put each pump as close as possible to its best efficiency point, remove artificial losses, and keep suction conditions healthy. Small changes...