Technical Knowledge

Industrial pump technical guides

Practical guides for engineers, maintenance teams and buyers who need to understand the problem before hiring the solution.

Pump cavitation: what it is, causes and how to prevent it

Pump cavitation explained: the gravel noise, how to confirm it through vibration and suction checks, impeller damage and 7 practical fixes.

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Pump mechanical seals: how they work, types and why they fail

How a mechanical seal seals the pump, the single, double and cartridge types, why seals leak early and the real causes of premature failure.

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Pump vibration analysis: what it detects and when to do it

How vibration analysis diagnoses unbalance, misalignment, bearing wear and cavitation in pumps before failure: standards, severity zones and routine.

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Rotor balancing: static vs dynamic and grade G2.5

Why rotors become unbalanced, the difference between static and dynamic balancing, what ISO 21940-11 grade G2.5 means and when to balance your pump's rotor.

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Pump and motor shaft alignment: causes and correction

What shaft misalignment is, the two types (parallel and angular), what it destroys, laser vs dial indicator alignment and when to check alignment.

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NPSHa vs NPSHr: how to calculate NPSH and what margin to use

NPSH explained: available vs required NPSH, how to calculate your installation's NPSHa, the recommended margin and how to avoid cavitation.

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