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Read e-book online Pump User's Handbook: Life Extension, Fourth Edition PDF

By Heinz P. Bloch

ISBN-10: 1482228645

ISBN-13: 9781482228649

This textual content explains simply how and why the best-of-class pump clients are continually reaching better run lengths, low upkeep costs and unexcelled protection and reliability. Written through training engineers whose operating occupation was once marked through involvement in pump specification, install, reliability evaluate, part upgrading, upkeep fee relief, operation, troubleshooting and all available aspects of pumping expertise, this article describes intimately the way to accomplish best-of-class functionality and coffee existence cycle expense.

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Additional info for Pump User's Handbook: Life Extension, Fourth Edition

Sample text

While this practice would be of little consequence in numerous pumps operating within the limits of process and mechanical design intents, it proved costly for at least one user whose pump shaft was mechanically overloaded. Excessive forces and moments caused the retainer bushing to deflect and the cast iron bearing housing to break. Whether or not a retainer bushing designed for the wider engagement shown in Figure 2-15 would have prevented fracturing of the bearing housing is difficult to determine.

Discharge Piping System piping size is normally dictated by friction losses, which could have life cycle cost impact. 5 m/s). Discharge piping flow characteristics normally will not affect the performance and reliability of a centrifugal or axial (“dynamic”) pump, but a few exceptions exist nevertheless in a number of situations. Here are some examples: PUMP PIPING The purpose of pump piping is to provide a conduit for the flow of liquid to and from a pump, without adversely affecting the performance or reliability of the pump.

Final installation of restraints and anchors should take place after the pipe has been completely installed and all terminal and equipment connections are made. Provisions for a final piping field weld close to the pump are being used by the best performing reliability-focused user companies to ensure the piping system will be near a zero load condition, and to meet the offset and parallel recommendations listed below. Conventional Wisdom: Let the pipe fitter decide how to route the pipe and where to install pipe supports Fact: Only a computer-model can accurately determine where and what types of supports must be installed for stress-free installation.

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Pump User's Handbook: Life Extension, Fourth Edition by Heinz P. Bloch


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