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Now showing items 101-110 of 176
Dry Running Bellows Type Tandem Seals For VOC Services
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
Dry running bellows seal technology, where the secondary (outer) seal operates in a dry condition, was originally developed in the UK and Europe for protection against primary seal failure. Over the past three years, it ...
Dynamic Loading On Pumps - Causes For Vibration
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1993)
Some insight into the mechanism which generate lateral dynamic loads, and hence vibrations, on centrifugal pumps is presented in a general way, and the individual loads are explained and quantified. Without extensive use ...
Solution To Cavitation Induced Vibration Problems In Crude Oil Pipeline Pumps
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1991)
An output was increased on the Eat-West crude oil pipeline in Saudi Arabia, increasing shaft seal failures were encountered. These limited the operation of the pipeline. Surveys on site and detailed model tests with flow ...
Supplier Quality Improvement Process
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1991)
The Chevron Supplier Quality Improvement Process is described herein. It starts by recalling the history of major mechanical equipment failures in the oil business. These problems led Chevron to the development of a ...
Design, Construction, And Applications Of Magnetically Coupled Centrifugal Pumps
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1990)
Since the early 1970s, the environmental protection has become more and more important when designing industrial plants and, today, this question is always first in any public discussion. Thus, the engineering profession ...
Evolution Of A Mechanical Seal Condition Monitoring System
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1990)
Mechanical face seals have been used in fluid handling equipment for many years, with a long history of reliability and safety. Most users of mechanical seals, however, tend to have a few critical service areas where process ...
Experimental Evaluation Of Bladder Type Pulsation Dampeners For Reciprocating Pumps
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1990)
Pulsation dampeners are frequently used to reduce piping pressure pulsations and vibrations in reciprocating pump systems. Despite their extensive use, scientific understanding of how the dampeners work and what design ...
Improving Pump Reliability In Light Hydrocarbon And Condensate Service With Metal Filled Graphite Wear Parts
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1990)
A number of single stage overhung and multistage horizontal pumps with a history of dry running seizure have been modified by replacing the metal stationary wear parts with metal filled graphite. After modification, the ...
The Role Of Off-Design Pump Operation On Mechanical Seal Performance
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
Field experience indicates that a high percentage of centrifugal pumps in industrial applications are not operated at their best efficiency point as related to product flow. Dry running, gas ingestion, vibration, cavitation, ...
CMA/STLE Pump Seal Mass Emissions Study
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1994)
The Chemical Manufacturers Association and the Society of Tribologists and Lubrication Engineers conducted a study of the leak rates from pumps equipped with mechanical seals. The resulting analysis indicates that attention ...