Search
Now showing items 1-10 of 12
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 ...
Design And Application Of Dual Gas Seals For Small Bore Seal Chambers
(Texas A&M University. Turbomachinery Laboratories, 1997)
Since the release of dual gas lubricated seal technology for process pumps over three years ago, this technology has provided a more versatile, efficient, safe, and less costly alternative to sealless pumps and traditional ...
Diamond Like Carbon Coatings - Tribological Possibilities And Limitations In Applications On Sintered Silicon Carbide Bearing And Seal Faces
(Texas A&M University. Turbomachinery Laboratories, 1997)
Promising new developments to master friction and wear under fry run conditions are diamond like carbon coatings. They offer high hardness and wear resistance, combined with a low coefficient of friction. Best coating ...
Development And Field Test Results Of High Performance Seals For An NGL Injection Pump
(Texas A&M University. Turbomachinery Laboratories, 1997)
Improvement in the efficiency of enhanced oil recovery techniques at the Kuparak, Alaska, oil field required replacement of reciprocating pump with a larger capacity centrifugal pump. During the specification of a high ...
Two-Phase Flow Performance Of A Heat Transport Pump
(Texas A&M University. Turbomachinery Laboratories, 1997)
Heat transport pumps in Canadian deuterium uranium reactor circulate coolant to remove fuel decay heat from the reactor core during normal and accident conditions. A loss-of-coolant-accident is one condition where heat ...
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 ...
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 ...
Twenty-Three Years Operating Experience With The World's Largest Boiler Feedwater Pump
(Texas A&M University. Turbomachinery Laboratories, 1997)
On the American Electric Power system, increases in generating unit size progressed from a 225 megawatt (MW) unit to the 1300 MW units, which remain the largest supercritical coal fired electric generating units in the ...
Rebuilding Process Pumps To Comply With Fugitive Emissions Standards
(Texas A&M University. Turbomachinery Laboratories, 1997)
Most states have adopted regulations that limit fugitive hydrocarbon emissions from mechanical seals in centrifugal pumps. In California, limits as low as 100 ppm have been imposed. Users are faced with few choices to meet ...
Pressure Ratings Of Mechanical Seals
(Texas A&M University. Turbomachinery Laboratories, 1997)
Although mechanical seals are widely used in many machines, there is no universally accepted system for establishing limits of pressure, temperature, and speed. As a result, manufacturers of mechanical seals may use different ...