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Now showing items 41-50 of 176
Progressing Cavity Pumps - Proper Selection And Application
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1992)
The design and construction of progressing cavity pumps permits them to pump virtually any fluid from clean, low viscosity fluids like oil or water, to delicate products like whole cherries, to very abrasive, highly viscous ...
Design And Testing Of Seals To Meet API 682 Requirements
(Texas A&M University. Turbomachinery Laboratories, 1996)
In recent years, manufacturers of mechanical seals have been faced with meeting more stringent leakage requirements along with reliability and extended MTBPM. Regulations by Environmental Protection Agency and standards ...
Torsional Vibration In Pump/Driver Shaft Trains - The Role Of External Damping From Pump Impellers
(Texas A&M University. Turbomachinery Laboratories, 1996)
Consideration of torsional vibration in pump/driver shaft trains has become of increasing importance with the development of electronically controlled variable speed electric motors. Such motors not only provide a static ...
Double Row Angular Contact Ball Bearings In Centrifugal Pumps.
(Texas A&M University. Turbomachinery Laboratories, 1996)
Double row angular contact ball bearings are used extensively in ANSI type end suction centrifugal pumps and other fluid machinery. The double row angular contact ball bearing supports combined axial and radial loads, ...
Abrasive Wear In Pumps - A Tribometric Approach To Improve Pump Life
(Texas A&M University. Turbomachinery Laboratories, 1996)
The reduction of abrasive wear and extension of the endurance of pumps requires a system analysis. Various pump types demonstrate different tribological systems under abrasive wear, which are basically dominated by sliding, ...
Multiphase Gas-Liquid Pumping
(Texas A&M University. Turbomachinery Laboratories, 1996)
Pumping crude oil and gas without prior separation greatly reduces the machinery and platform space required. Multiphase pumps can be located at the surface or subsea and are designed primarily as a) two-screw rotary or ...
Considerations In Hot And Cold Alignment And Couplings
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1990)
Hot and cold alignment techniques are addressed, with graphical plotting of reverse dial indicator alignment maps. An alignment program with a two sets of data for cross checking and suggested proper tooling and procedures ...
Control Valve Induced Pipeline Vibrations In A Paper Pulp Pumping System
(Texas A&M University. Turbomachinery Laboratories, 1997)
A case history is presented pertaining to piping vibrations in a medium consistency paper pulp pumping system at a large North American integrated pulp and paper mill that ultimately resulted in pipe rupture. The system ...
Present Limits Of Operation Of Product Lubricated And Magnetic Bearings In Pumps
(Texas A&M University. Turbomachinery Laboratories, 1997)
Interest in nonoil lubricated bearings is growing, due to a number of benefits derived from these bearings: improved pump performance and reliability, enhanced pump maintainability, elimination of the cost and maintenance ...
Mechanical Seal Reliability Improved With API Piping Plan 23
(Texas A&M University. Turbomachinery Laboratories, 1997)
A reliable mechanical seal is a happy seal. A happy seal is one that runs in an environment that is cool, clean, and maintains a satisfactory vapor pressure margin. However, this is not always the case. Not all Pumped ...