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Monitoring Repairs To Your Pumps
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
Many centrifugal pumps are doomed to premature failure because the total pump installation was not evaluated or the repair activity coordinated to correct the basic cause of the initial failure. Pump users have a great ...
Justifying The Reinstallation And Upgrading Of Problem ANSI Pumps At An Operating Chemical Plant
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
Many facilities do not obtain the expected life out of ANSI and other centrifugal pumps, seals, and bearings that need to be obtained to be competitive in today’s market place. The analysis of this situation leads to two ...
Experimental Investigations In Respect To The Relevance Of Suction Specific Speed For The Performance And Reliability Of Centrifugal Pumps
(Texas A&M University. Turbomachinery Laboratories, 1996)
Recently, several recommendations have been proclaimed concerning limitations of the maximums suction specific speeds (n85) of centrifugal pumps. These recommendations result from statistical evaluations of pump failures ...
Modern Manufacturing Of Advanced Impeller And Diffuser Vane Profiles
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
Both fluid dynamics and manufacturing technology have seen rapid progress over the last few years. Vane profiles need no longer be developed in cavitation demonstration experiments, but can be optimized by computerized ...
Effect Of Mechanical Unbalance On Vibrations, Forces And Reliability Of A Single-Stage Centrifugal Pump
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
The effect of rotor mechanical unbalance on pump vibrations was tested for a typical ANSI pump. It was found that significant damping of vibrations occurs at actual (wet) operations as compared to dry run. Rotor forces and ...
Benefits Of A Balanced Interference Fit Bellows Seal Design In High Temperature Corrosive Applications
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1992)
Metal bellows seals, originally developed for the aerospace/defense industry, are now widely accepted in the petrochemical, chemical, and general industrial markets. Metal bellows seals offer enhanced dynamic tracking of ...
Zero Emission Solutions For Mechanical Seals On Light Hydrocarbons
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1992)
While simple mechanical seals will continue to improve in performance and be extensively used, there are occasions where zero leakage is required, and where the currently recognized option is the glandless pump, which ...
Corrosion In Pumps
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1992)
Many of the corrosion-related problems encountered in pumps during their useful lives are reviewed. Seven forms of corrosion are discussed with guidelines given that could mitigate pump damage if proper consideration were ...
Cavitation And Recirculation Field Problems
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1992)
Bone-Dry Running Tests Utilizing Diamond Like Carbon Coated Silicon Carbide Bearings And Polymer Lubricating Strips In An ANSI Magnetic Drive Pump
(Texas A&M University. Turbomachinery Laboratories, 1997)
Dry run failures in sealless pumps continue to be of major concern to users and, in some cases, have precluded the purchase of these types of pumps. Users are demanding robust pump designs that are more tolerant of dry ...