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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 ...
Oil Lubrication Systems For Process Pumps And Related Equipment
(Texas A&M University. Turbomachinery Laboratories, 1997)
Oil lubrication systems, when required and provided for the pumping system, are the life insurance policy for the process. If the oil lubrication system should fail to perform, the results are bearing failures in pumps, ...
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 ...
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 ...
A Comparison Of Positive Displacement And Centrifugal Pump Applications
(Texas A&M University. Turbomachinery Laboratories, 1997)
Positive displacement and centrifugal pumps sometimes seem to inhabit different worlds. Users are generally much more familiar with one type than the other. This causes some confusion when the user’s expectations are based ...