Fluid pressure shutoff and relief valve
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United States of America Patent
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-
Jan 19, 1999
Issued Date -
N/A
app pub date -
Apr 22, 1996
filing date -
Jan 18, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A safety valve for a preventing over pressure in a fluid processing system utilizing a fluid pressure regulator in a fluid supply line upstream from the processing vessel is formed by a valve, normally maintained open by a pressure responsive collapsible pin, interposed in the fluid supply line upstream or downstream from the pressure regulator. Fluid pressure above a predetermined limit in a tube connecting the safety valve with the downstream side of the pressure regulator axially moves a piston in the safety valve toward and axially collapses the pin to close the safety valve and vent pressure downstream from the valve.
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