SEAL SUPPORT SYSTEM
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United States of America Patent
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Issued Date -
Sep 11, 2014
app pub date -
Mar 8, 2013
filing date -
Mar 8, 2013
priority date (Note) -
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Abstract
An apparatus and method for preventing the temperature of liquid inside a seal support system from falling below the freezing point of the liquid while maintaining substantially constant pressure inside the seal support system, includes a pressure vessel in closed loop fluid communication with a mechanical seal. The closed loop includes a feed line to the mechanical seal and a thermostatic valve for releasing liquid when the temperature of the liquid falls below a predetermined temperature. A regulating valve supplies additional liquid to the vessel by way of an external supply line.
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