Mechanical Seal Reliability Improved With API Piping Plan 23
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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 fluids are cool, clean, and have satisfactory vapor pressure margins. It has been found that on a large number of pumps handling hostile services, installing an API Seal Flush Plan 23 is the answer. Presently, the authors have over 400 Plan 23 arrangements in services that range from hot water to light ends and heavy aromatics. The average service life for these successful installations is more than six years.
Dodd, V. Ray; Hinkel, Thomas E. (1997). Mechanical Seal Reliability Improved With API Piping Plan 23. Texas A&M University. Turbomachinery Laboratories. Available electronically from