波纹管安全阀.docx

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ConcentrationorNon-ToxicLiquids(1)
Appendix:Figures
ShortNippleorNipplewithanElbowtoavoidimpingementonVessels,LinesorPersonnelWalkways
Note(2)
l~Platform
FigureA-:BonnetVentforBellowsValvesHandlingLowToxic
ConcentrationorNon-ToxicLiquids(1)
NOTES:
Thisarrangementappliesonlywhenboththevaporbeingrelievedandthevaporinthedischargesystempriortoreliefarenon-toxic.
(2)IfspecifiedbytheOwnerEngineer,theventpointmaybeextendedtotheedgeoftheplatformwithsupportssimilartothoseshowninFigureA-2.
FigureA-:BonnetVentforBellowsValvesHandlingLowToxic
ConcentrationorNon-ToxicLiquids(1)
FigureA-:BonnetVentforBellowsValvesHandlingLowToxic
ConcentrationorNon-ToxicLiquids(1)
FigureA-:BonnetVentforBellowsValvesHandlingHighToxic
ConcentrationVapors(1)
Appendix:Figures
n
FigureA-:BonnetVentforBellowsValvesHandlingLowToxic
ConcentrationorNon-ToxicLiquids(1)
FigureA-:BonnetVentforBellowsValvesHandlingHighToxic
ConcentrationVapors(1)
NOTES:
Thisarrangementappliesonlywhenboththevaporbeingrelievedandthevaporinthedischargesystempriortoreliefarenon-toxic.
(2)IfspecifiedbytheOwnerEngineer,theventpointmaybeextendedtotheedgeoftheplatformwithsupportssimilartothoseshowninFigureA-2.
FigureA-:BonnetVentforBellowsValvesHandlingLowToxic
ConcentrationorNon-ToxicLiquids(1)
FigureA-:BonnetVentforBellowsValvesHandlingHighToxic
ConcentrationVapors(1)
CSO
CSO
usedfo
gNote(2)
()
Loosefit
$Platform
NPS3/4in.
(20mm)
Handrail
~axto
1stsupport
Normallyplugged,
no
c
lo
soT
s
teoN
N
NOTES:
(1)Thisarrangementapplieswheneitherthevaporbeingrelievedorthevaporinthedischargesystempriortoreliefistoxic.
Testingvalvemaybeomittedwhensitedoesnotregularlytestforbellowsleakage.
.
Edgeofplatformnormallyrecognizedasasafelocation.
Dischargetobedirectedtoavoidimpingementonvesselslinesorpersonnelwalkway.
FigureA-:BonnetVentforBellowsValvesHandlingLowToxic
ConcentrationorNon-ToxicLiquids(1)
FigureA-:BonnetVentforBellowsValvesHandlingHighToxic
ConcentrationVapors(1)
CSO
Loosefit
NPS3/4in.
(20mm)
OpenFunnel
(Ifpermitted)
CSO
NPS1
in.(25mm)
Supportasneeded
Note(2)
linetoSealed
Seweratgrade
’Platform
FigureA-:BonnetVentforBellowsValvesHandlingLowToxic
ConcentrationorNon-ToxicLiquids(1)
FigureA-:BonnetVentforBellowsValvesHandlingHighToxic
ConcentrationVapors(1)
NOTES:
(1)Ifliquidreleaseispossibleonlyduringa搑emotecontingency?thearrangementinFigureA-1maybeusedsubjecttoOwner'sEngineerapproval.
IfspecifiedbytheOwner'sEngineer,theventpointmaybeextendedtotheedgeoftheplatformwithsupportssimilartothoseshowninFigureA-2.
FigureA-:BonnetVentforBellowsValvesHandlingLowToxic
ConcentrationorNon-ToxicLiquids(1)
FigureA-:BonnetVentforBellowsValvesHandlingHighToxic
ConcentrationVapors(1)
FigureA-:RuptureDisk-PressureReliefValveInstallation
Toflareheaderoratmosphere(nopockets)
NOTES:
(1)Optionalifspecifiedbyowner'sengineer.
(2)Pressureindicatorandvalveusedtocheckforblownrupturediskssoitshouldbeaccessible.
Showpressurereliefvalvetagnumberonpressureindicator.