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Pump Wisdom: Chapter 17: Repair, Replace, or Modify? (Excerpt)

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Pump Wisdom Chapter 17 Repair, Replace, or Modify (Excerpt)

Pump Wisdom: Chapter 17: Repair, Replace, or Modify? (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 16: Using Failure Statistics and Root Cause Analysis Findings to Guide Reliability Improvement Efforts (Excerpt)

Chapter 17: Repair, Replace, or Modify? (Excerpt)
Repair or Replace?
A common question that comes up when pumps fail: Which pump warrants repair and which should simply be replaced? To answer the question, we need the following information concerning the pumps being evaluated (Chapter 17, Ref. 1):
m salvage = market salvage value
m post-repair = market value of the machine after repair
r value-added = value added to the machine by the repair
r cost = Repair cost


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