Hydrostatic Tank Floor Relief Valve
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United States of America Patent
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Issued Date -
May 19, 2016
app pub date -
Nov 18, 2014
filing date -
Nov 18, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A hydrostatic tank floor relief valve of a construction described herein provides for equalization of hydrostatic pressure of fluid in a storage tank with hydrostatic pressure of ground water surrounding the storage tank. A high efficiency grate located in a flow channel of the hydrostatic tank floor relief valve blocks debris from entering the storage tank during pressure equalization, yet does not reduce effective flow rates through a flow channel of a given diameter. The hydrostatic tank floor relief valve optionally includes an elastomeric seal surface and a stainless steel seat ring that reduce the likelihood of particulate matter disrupting valve operation, and provide a more reliable seal.
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