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Pump Wisdom: Chapter 13: Pump Condition Monitoring: Pump Vibration, Rotor Balance, and Effect on Bearing Life (Excerpt)

Pumps & Operations
Pump Wisdom Chapter 13 Pump Condition Monitoring Pump Vibration,

Pump Wisdom: Chapter 13: Pump Condition Monitoring: Pump Vibration, Rotor Balance, and Effect on Bearing Life (Excerpt)

Explore key facets of centrifugal pump ownership, installation, operation, and troubleshooting

The Second Edition of Pump Wisdom: Essential Centrifugal Pump Knowledge for Operators and Specialists delivers a concise explanation of how pumps function, the design specifications that must be considered before purchasing a pump, and current best practices in lubrication and mechanical seals.

This new edition also contains new startup and surveillance tips for pump operators, as well as repair versus replacement or upgrade considerations for maintenance decision-makers, new condition monitoring guidance for centrifugal pumps, and expanded coverage of operator best practices.

Read Pump Wisdom: Chapter 12: Lubrication Management (Excerpt)

Vibration and its effect on bearing life

Pumps, like all rotating machines, vibrate to some extent due to response from excitation forces, such as residual rotor unbalance, turbulent liquid flow, pressure pulsations, cavitation, and pump wear. The magnitude of vibration will also be amplified as flows deviate from best-efficiency (Fig. 13.1) and as the vibration frequency approaches the resonant frequency of a major pump, foundation and/or connected piping.


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