WEGHTED PRESSURE RELIEF VALVE
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United States of America Patent
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N/A
Issued Date -
Nov 1, 2012
app pub date -
Apr 23, 2012
filing date -
Apr 27, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A subsea pressure relief valve includes a water-filled nozzle fluidly connected to a hydrocarbon distribution manifold. A valve body is connected to the distribution manifold, with an outlet of the nozzle coincident with an interior water-filled chamber of the valve body. A first seal element is removably seated against the nozzle outlet and an arm is hinged to the body and configured to apply a force along a seal axis and bias the first seal element into sealing engagement with the nozzle outlet until hydrocarbon pressure exceeds a sealing pressure of the applied force and unseats the first seal element from the nozzle outlet such that excess hydrocarbons exit through an outlet of the valve body. A weight is disposed on the arm at a distance from the seal axis.
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