Common Pump Failures and Prevention
Understand the top causes of pump failures — cavitation, seal degradation, alignment issues — and preventive maintenance strategies.
Cavitation
Vapour bubbles collapsing against the impeller erode metal and destroy performance. Maintain adequate NPSH margin, keep suction lines short, and watch for the tell-tale gravel noise.
Seal Degradation
Mechanical seals fail from dry running, misapplied seal plans, and abrasive media. Monitor leakage rates and replace with OEM-spec seals — not generic equivalents.
Misalignment & Vibration
Laser-align at commissioning and re-check after thermal cycles. Trending vibration data catches bearing wear months before catastrophic failure.
A Preventive Maintenance Plan
Quarterly inspections, annual overhauls for critical duty, and a stocked spares kit of seals, bearings, and gaskets keep unplanned downtime near zero.
Key Takeaways
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