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Pump wisdom : problem solving for operators and specialists

Author: Heinz P Bloch
Publisher: Hoboken, N.J. : Wiley, ©2011.
Edition/Format:   eBook : Document : EnglishView all editions and formats
Database:WorldCat
Summary:
"PUMP WISDOM was compiled to explain elusive failure causes. Some have to do with pump selection, others have to do with overlooked installation criteria or are simply the result of small deviations that add up. In other words, while a certain assembly dimension may be allowed to reach a defined upper limit, allowing another, and yet another deviation to reach its upper limit on the remaining pump components will  Read more...
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Genre/Form: Electronic books
Additional Physical Format: Print version:
Bloch, Heinz P., 1933-
Pump wisdom.
Hoboken, N.J. : Wiley, ©2011
(DLC) 2010050397
(OCoLC)687712969
Material Type: Document, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Heinz P Bloch
ISBN: 9781118056745 1118056744 1118056728 9781118056721 1118041232 9781118041239 1283098768 9781283098762
OCLC Number: 729724631
Description: 1 online resource (xiv, 210 pages) : illustrations
Contents: Front Matter --
Principles of Centrifugal Process Pumps --
Pump Selection and Industry Standards --
Foundations and Base Plates --
Piping, Stationary Seals, and Gasketing --
Rolling Element Bearings --
Lubricant Application and Cooling Considerations --
Lubricant Types and Key Properties --
Bearing Housing Protection and Cost Justification --
Mechanical Sealing Options for Long Life --
Pump Operation --
Impeller Modifications and Pump Maintenance --
Lubrication Management --
Pump Condition Monitoring: Pump Vibration, Rotor Balance, and Effect on Bearing Life --
Drivers, Couplings, and Alignment --
Fits, Dimensions, and Related Misunderstandings --
Failure Statistics and Structured Failure Analysis --
Index. Machine generated contents note: 1 Principles of Process Pumps. --
Pump performance: Head and Flow. --
Operation at zero flow. --
Impellers and rotors. --
The meaning of specific speed. --
Process pump types. --
Process pump mechanical response to flow changes. --
Recirculation and cavitation. --
The importance of suction specific speed. --
What we have learned. --
2 Pump Types and Selection. --
Why insist on better pumps. --
ANSI and ISO vs. API pumps. --
What we have learned. --
3 Foundations and Base Plates. --
Securing pumps in place --
with one exception. --
Why not to install pump sets in the as-shipped condition. --
Conventional vs. pre-filled base plate installations. --
Epoxy pre-filled base plates. --
How to proceed if there is no access to specialist firms. --
What we have learned. --
4 Piping and Gaskets. --
Pipe installation and support. --
Sliding supports and installation sequence deserve special attention. --
Monitoring pipe stress while bolting up. --
Flange leakage. --
What to do prior to gasket insertion. --
Spiral wound and kammprofile gaskets. --
Pipe, hydraulic tubing or flexible connections. --
Gusseting. --
Concentric vs. eccentric reducers. --
Vibration problems in piping. --
What we have learned. --
5 Rolling Element Bearings. --
Bearing selection overview and windage as a design problem. --
Radial vs. axial (thrust) bearings. --
Oil levels, multiple bearings, and different bearing orientations. --
Upgrading and retrofit opportunities. --
Bearing cages. --
Bearing preload and clearance effects. --
Bearing dimensions and mounting tolerances. --
What we have learned. --
6 Lubricant Application and Cooling Considerations. --
Lubricant level and oil application. --
Issues with oil rings. --
Pressure and temperature balance in bearing housings. --
Cooling not needed on pumps with rolling element bearings. --
Oil delivery by constant level lubricators. --
Black oil. --
Lube application as oil mist (oil fog). --
Desiccant breathers and expansion chambers. --
What we have learned. --
7 Lubricant Types and Key Properties. --
Lubricant viscosities. --
When and why high film-strength synthetic lubricants are used. --
Lubricants for oil mist systems. --
What we have learned. --
8 Bearing Housing Protection and Cost-Justification. --
Non-contacting bearing protector seals. --
Contacting bearing protector seals. --
How venting and housing pressurization affect bearing protector seal performance. --
Cost justification overview. --
Advanced bearing housing (bearing protector) seal summary. --
What we have learned. --
9 Mechanical Sealing Options for Long Life. --
Still using packing? --
General overview of mechanical seals. --
All flush plans have advantages and disadvantages. --
Always obtain the full picture. --
Seal chamber pumping ring (circulating device) technologies. --
Lessons to apply to many services. --
What we have learned. --
10 Pump Operation. --
Starting centrifugal pumps. --
Surveillance of pump operation. --
Centrifugal pump shutdown. --
What we have learned. --
11 Impeller Modifications and Pump Maintenance. --
Maintenance essentials. --
Superior maintenance requires upgrading. --
Impeller upgrading with inducers. --
Distance from impeller tips to stationary internal casing components. --
Impeller trimmings. --
Impeller wear rings. --
Vane tip overfiling and underfiling. --
What we have learned. --
12 Lubrication Storage and Management. --
How bad is water contamination? --
Avoid solids contamination. --
Avoid questionable storage and transfer practices. --
Periodic audits. --
What we have learned. --
13 Pump Condition Monitoring. --
Vibration and its effect on bearing life. --
Monitoring methods differ. --
Vibration acceptance limits. --
Causes of excessive vibration. --
Rotor balancing. --
What we have learned. --
14 Drivers, Couplings, and Alignment. --
Driver selection. --
Coupling selection and installation. --
Installation and removal. --
Alignment and quality criteria. --
Consequences of misalignment. --
Thermal rise and predefinition of growth. --
What we have learned. --
15 Fits, Dimensions, and Related Misunderstandings. --
Low incremental cost of better pumps. --
Pump pedestals and bearing housings should not be water-cooled. --
Summary of bearing-related issues. --
Constant level lubricators. --
Bearing housing protector seals("bearing isolators"). --
Motor lubrication summary. --
Mechanical seal issues. --
Hydraulic issues. --
Impeller hydraulics. --
Mechanical improvement or upgrade options. --
Process pump repair dimensions. --
What we have learned. --
16 Failure Statistics and Successful Failure Analysis. --
Mean time between failures and repair cost calculations. --
Performing your own projected MTBF calculations. --
Older pumps vs. newer pumps. --
Reliability reviews start before purchase. --
Structured failure analysis strategies solve problems. --
The "FRETT" approach to eradicating repeat failures of pumps. --
What we have learned. --
Index.
Responsibility: by Heinz P. Bloch.
More information:

Abstract:

* Provides a concise explanation of how pumps function * Details the specifications to be considered when purchasing a pump. * Provides tips on installation of centrifugal pumps in process  Read more...

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"Seldom has so much practical advice (well-deserving the term wisdom ) been so readily available in easy-to-read, well-illustrated form. If you deal with pumps, don t miss it. (Electrical Apparatus, Read more...

 
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