In-line thermal expansion tank
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United States of America Patent
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Jul 16, 2002
Grant Date -
N/A
app pub date -
Nov 8, 2000
filing date -
Nov 8, 2000
priority date (Note) -
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Abstract
An in-line expansion tank includes a sleeve defining a volume, a pipe positioned within the sleeve, and an annular flexible bladder disposed within the volume between the sleeve and the pipe. The pipe defines a fluid flow channel, an inlet at an upstream region of the pipe in fluid communication with the fluid flow channel, and an outlet at a downstream region of the pipe in fluid communication with the fluid flow channel. The bladder and the sleeve define an outer radial chamber therebetween. The chamber is pressurized during normal use and the bladder is configured to contact the pipe during operation at normal water pressure to minimize dead space between the bladder and the pipe. The tank includes a valve for pressurizing the chamber.
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