Regulators - Lawrence Berkeley National Laboratory

SGEM 2006: SEction 9 [REGulatoRS] 1419

Introduction 142

ScientificRegulators 146

RegulatorsforNon-CorrosiveGases 151

RegulatorsforReactiveandCorrosiveGases 157

RegulatorsforDetectagas™ 161

Auto-ChangeOverManifold 162

Flowmeters 164

Regulators

9 Regulators

SGEM 2006: SEction 9 [REGulatoRS]142

introductionTheBOCrangeofscientificgasesequipmentwithinthissectionhasbeenselectedonthebasisofitscompatibilitywiththeintendedduty.

the key issues in the handling of scientific gases are:

Safety(particularlyverytoxicgases)and

Reticulationwithoutchangeinpurity.

TherangeallowsgreatflexibilityofdesignsopleasecontactBOCScientifictodiscussyourspecificgascontrolrequirements.

the Boc range of scientific gases equipment consists of:

Regulators

Manifolds

Controlvalves

Flowmeters

Purgeassemblies

Thenecessaryinstallationservicesandaccessories

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considerations When Specifying a Scientific RegulatorThefollowingmustbecarefullyconsideredwhenchoosingaregulatorforscientificapplications:

Typeofgasanditscharacteristics

Compatibilityofgaswithmaterialsofconstruction

Maximumanticipatedinletpressure(kPaorpsig)

Outletpressurerangerequired(kPaorpsig)andaccuracy/tolerance

Flowraterequiredandrange(litres/minute)

Theimportanceofmaintainingconstantpressurethroughouttheapplication.Thiswilldeterminewhetherasingleordualstageregulatorshouldbeused.

Whileallpressureregulatorsoperateinasimilarmanneritisincorrecttoassumethatthesameregulatorsmaybesuitedtobothindustrialandhighpuritygasapplications.

Thesignificantdifferencesinthedesignandmaterialsofconstructionofscientificregulatorsdifferentiatethemfromindustrialregulators.

Thefollowinginformationisprovidedtoallowtheusersofhighpuritygasestodeterminethetypeofregulatorthatwillbestsuittheirintendedapplication.

OurScientificSalesSpecialistand/orScientificSupportCentrecanassistyouinmakingthecorrectselectionandalsoorganisethesupplyoftherequiredgasorgasesintheoptimumcontainersize(s).Forfurtherdetailspleasecontact1800658278(AUS)or0800111949(NZ).

Regulator Design For High Purity Duty (Scientific)Scientificorhighpurityregulatorsareusedtoreduceandregulatetheflowofhighpressuregasfromeitheracylinderorpipelineandtodeliveratdesiredpressurefortheapplicationtohand.Theymaintaintheselectedorsetdeliverypressureasthepressureinthegascylinderdecreaseswhilstgasisbeingwithdrawn.

Theprimaryobjectiveofascientificregulatoristomaintainthequalityandintegrityofyourhighpuritygassuchthatitisnotcontaminatedbythematerialswithwhichthegascomesintocontactwithinsidetheregulator.

Theregulatormustnotallow;

airtoleakintothegasstream(atmosphericcontamination)

gastoleaktotheatmosphereorbeabsorbedwithintheregulator(potentialworkplacecontamination)

off-gassingfrommaterialsofconstruction(internalcontamination)

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9Regulators


Dual Stage Regulators

Themaindifferencewithdualstagepressureregulationisthattheregulatorisdesignedtomaintainamoreconstantoutletpressure.

Thefirststageprovidestheinitialprimarypressurebreakdowntoavalueslightlymorethanthemaximumrequiredoutletpressure.

Thismeansthesecondstagehasasmallerpressuredifferentialtocontendwithandasaresultthecombinedeffectofusingtwostageswillgivefinerpressurecontrolwithlessvariation.

Adualstageregulatoriseffectivelytwosinglestageregulatorsinoneregulatorbody.

Thefirststageispre-setatanintermediatepressure,normally3500kPaorbelow.

Thesecondstageisadjustableandreducestheintermediatepressuretothedesiredpressure.

Sincethesecondstageseesonlyminorvariationsininletpressurefromthefirststage,outletpressurewillremainconstantthroughoutthelifeofacylinder.

Dual Stage regulator applicationsProcesseswhicharesensitivetosmallchangesinpressure.

Longtermpressurecontrolofcylindersofpermanentgasese.g.forusewithcarriergasesforgaschromatographs.

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How Regulators control Your Gas Flow

Single Stage Regulators

Theregulatorcontrolsthesetpressurebybalancingtheoutletgaspressureonthediaphragmagainstthecompressedspring.

Whentheadjustingknobisscrewedin,thespringisforceddownontothediaphragm,whichpushesdownontheseatspindle.Oncethespindleisforcedawayfromitsseathighpressuregasentersthelowpressurechamberoftheregulator.

Iftheoutletfromtheregulatorisisolated,pressurebuildsupintheregulatorlowpressurechamberuntilthediaphragmcompressesthemainspring.Thiswillcausethespindleto‘reseat’,shuttingoffthegasflowfromthehighpressuregasinlet.

Whenthegasisuseddownstreamthepressureinthelowpressurechamberdrops,allowingthemainspringtoforcethediaphragmdownagain,openingthespindleandraisingthepressureinthelowpressurechamber.

Why delivery pressure gradually rises with single stage regulators

Thesetoutletpressureforasinglestageregulatorwillremainconstantaslongasitsinletpressureremainsconstant.However,inthecasewheretheregulatorisuseddirectlyonagascylinder,theinletpressurewilldecreaseasthegascylinder’scontentisdepletedandtheoutletpressurewillrise.

Thereasonthatthisoccursisthatdecreaseinthegascylinderpressure(i.e.regulatorinletpressure)reducestheforceonthehighpressuresideoftheseatthereforecausingacorrespondingriseintheoutletpressure.Theriseinoutletpressure(asinletpressuredecreases)ofmostsinglestageregulatorsisbetween5–7kPaper1000kPa.

Thismeansthattheoutletpressurewillriseapproximately70–110kPaoverthelifeofacylinderiftheadjustingknob(i.e.springcompression)isnotreadjustedtocompensateforthedropinthecylindergaspressure.

Single Stage Regulator applications

Singlestageregulatorsaresuitedfor:

Processeswhichareinsensitivetothepressureincrease.(i.e.asthecylinderpressuredecreases).

Shorttermgasdeliveryapplications(typically<20mins)e.g.theintroductionofsamplegasfromacylinderforanalysistoananalyticalinstrumentsuchasgaschromatograph,processanalyseretc.

Controlofpressurefromcylinderscontainingliquefiedgases.notEAtconstantambienttemperature,thepressureingascylinderscontainingliquefiedgasesremainsconstantuntiltheliquidcontentsrunsout.

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A AdjustingKnob

B L.P.Adj.Spring

C DiaphragmPlate

D Diaphragm

E H.P.Adj.Spring

F SpringButton

A AdjustingKnob

B AdjustingSpring

C DiaphragmPlate

D Diaphragm

A C DB

A C DB E FCD

9 Regulators


the Materials of construction for Scientific RegulatorsTheprimaryconsiderationwhenselectingaregulatorforahighpuritygasserviceistoensurethatallmaterialswhichcomeincontactwiththegasarestableandcompatiblewiththegas.theyshouldalsobestableundertheanticipatedpressureandtemperaturerange.Itisalsoimportanttoselectregulatorsthatkeeptoaminimumthenumberofmaterialswhichcomeincontactwiththegas.

the Body

Thebodyoftheregulatorhasthelargestsurfaceareaexposedtothegas.Thetwomaterialsmostcommonlysuppliedforthebodyofahighpuritygasserviceregulatorarebrassand316stainlesssteel.

Brass Body:Regulatorbodiesmadefrombrassarecompletelymachinedfromasinglepieceofbrass.Theirbodycavitiesarenormallydesignedtominimisetheinternalareaandpermitthoroughpurging.Brassisrecommendedforinertandhighpuritygasservice.

Stainless steel Body:Grades316and316Lofferthehighestlevelofcompatibilitywithawiderangeofhighpuritygases.

Regulatorswith316stainlesssteelbodiesarerecommendedfor;

Corrosivegasservice

Reactivegasmixtures

Ultrahighpuritygasservice.

the Diaphragm

Thetwokeyissuesformaterialselectionsarethediaphragmandthemethodofsealingthediaphragm.

Diaphragmsforallhighpurityapplicationsmustbemanufacturedfrom316stainlesssteel.Regulatorswithelastomericdiaphragmsmustneverbeusedinhighpuritygasapplications.Elastomericmaterialsareporousandwill;

Allowsignificantquantitiesofairtoenterthegasstreamandcontaminatethegaswithair(mainly,oxygen,nitrogenandmoisture).

Allowadsorptionofsomegasesintotheelastomericdiaphragm.Thiswillalsoalterthecompositionofthegasmixtureflowingoverit.

Theuseofa316stainlesssteeldiaphragmwilleliminatebothofthesepossibilities.

Thebody/diaphragminterfacewilldeterminetheleakintegrityoftheregulator.Ametaltometalseal,withoutanOringorcoatings,ensuresthehighestintegrity.Metaltometalsealscanlimitheliumleakratestotherangeof1x10-9cc/secHe*.Regulatorswithsecondarysealsatthediaphragmtypicallyhaveleakratesintherangeof1x10-8cc/secHe.*He(Heliumgas)hasaverysmallmolecularsizewhichmeansitisidealforleaktesting.Theflowratesquotedareextremelylow.

the Seat

Regulatorseatsmustbemadeofasoftresilientmaterialtoensureahighintegritysealbetweenthehighandlowpressuresectionsoftheregulator.Theseatmaterialmustbecompatiblewiththegasservice.ThebestmaterialsforhighpurityservicearefromtheTeflon®familyofmaterials.®DuPontregisteredtrademark

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How Gas characteristics affect Regulator SelectionOtherthandictatingthetypeofmaterialrequiredfortheregulator,thegasapplicationdeterminesthetypeofinletconnectionthatshouldbespecifiedfortheregulator.Thismakesitimpossibletoconnectunsuitableequipmenttoacylinder.

Ifanydoubtexistsastotheproperconnection,aBOCScientificSalesSpecialistshouldbeconsulted.

HighpurityGasesmaybeseparatedintocategoriesbasedontheirpropertiesasfollows.

inert gases

Inertgasesarenon-corrosiveandgenerallycompatiblewithmostmaterials.However,forinstrumentcalibrationorpurgingapplications,itispossibleforhighpuritygasessuchasnitrogen,argonandheliumtobecomecontaminatedbythediaphragmand/orsealantmaterialsusedincommonindustrialregulators.

Highpuritygasregulatorswhichhaveabrassbodywitha316stainlesssteeldiaphragm,areusuallyacceptableforinertgasservice.

Ultrahighpuritygasapplicationsrequirearegulatorwithastainlesssteelbodyanda316stainlesssteeldiaphragm.

corrosive gases

Corrosivegasespresentspecialchallengesintheselectionofregulators.

Mostofthegasesclassifiedascorrosive(e.g.,HCl,Cl2andH2S)arecorrosiveonlyinthepresenceofmoisture.

Regulatorsmadeentirelyof316stainlesssteelarerecommendedforhighpuritycorrosivegasservice,butthesealsomustbekeptdrytoavoidrapidcorrosionoftheregulator’sinterior.Wherewetcorrosivegasesarehandled,itmaybenecessarytospecifyaregulatormadeofmoreexoticmaterials,suchasMonel,Hastelloy,nickelplatedbrassorpolyvinylchloride.

toxic gases

Toxicgasespresentapotentialsafetyhazardintheworkplaceandspecialcaremustbeexercisedtopreventtheirreleaseintotheatmosphere.Thus,itisextremelyimportantthatregulatorsselectedfortoxicgasservicebeequippedtocaptureanyrelease.

Gasismostlikelytoleakfromthespringcaseifthediaphragmfails.Topreventexternalleakage,atoxicgasregulatorshouldbeequippedwithasealedspringcaseandacapturedventassembly.Thisallowsforventingthegasfromthespringcasetoasafelocation.Apressurereliefvalvemustbefittedimmediatelyaftertheregulatortoprotectlowpressurecomponentsdownstreamshouldtheregulatorvalveassemblyfailtoseal.Thepressurereliefvalvemustbepipedtoasuitabledisposalsystem.

inlet pressure

Thestandardhighpressureinletratingforregulatorsis20,000kPasettled.Therearehowever,HighPressure(HP)andExtraHighPressure(EHP)cylinderswithratingsofupto40,000kPa.Inaddition,manyhighpuritygasesareliquefiedorarestoredatlowpressure.Forthesegasesaregulatorwithanappropriatelyrangedinletpressuregaugewillenabletheusertoassessacylinder’scontentsmoreaccurately.AtStandardTemperatureandPressure(1atmosphereand15degreesCentigrade)

Scientific diaphragm

9Regulators


outlet pressure

Regulatorsaredesignedwithdifferentadjustmentspringsinthespringcasetoachieveaspecificoutletpressurerange.Thelowendrangeisnormally0–100kPabutmaybeaslowas0–13kPa.Theupperlimitinthediaphragmtyperegulatorisusuallyabout3500kPa.

Flow rate

FlowrequirementsformostHighPurityGasapplicationswillbefairlylowandareexpressedinlitresperminute(LPM).Flowcurves

displayagraphofMaximumFlowasafunctionofInletPressureandOutletPressure.

Graphsshowthemaximumflowobtainablefromaregulatoratagivenoutletpressureforasetinletpressure.

Althougharegulatorshouldnotbeusedtocontrolflow,theyaredesignedforhigh,mediumandlowflowperformance.Flowcurvesareusedtodetermineifaregulatorwillmeettheflowrequirementofaspecificapplication.Aflowmeterandcontrolvalvecanbeincorporatedintotheprocesslinetocontrolandindicateflow.

Guide to Boc Part numbering System

HPS type of Regulator

HPS HighPuritySingleStage

HPT HighPurityDualStage

HPL HighPurityLine

GPS GeneralPurposeSingleStage

SGS CorrosionResistantSingleStage

SGT CorrosionResistantDualStage

SGL CorrosionResistantLine

LB LectureBottle

Example

H P S 5 0 0 - 1 2 5 - 5 8 0 - 4 S

125Delivery Pressure (psi)OutletPressureRange

15 0–15psi(104kPa)

40 0–40psi(276kPa)

80 0–80psi(552kPa)

125 0–125psi(863kPa)

200 0–200psi(1,380kPa)

300 0–300psi(2,070kPa)

500 0–500psi(3,450kPa)

NOTEDeliverypressuremustbequotedinpsi.

580inlet FittingCylindertoregulator

Brass(sometimesChromeplated)

10 Type(AustralianStd)

20

30

50

60

110 CGA(InternationalStd)

580

350

346

540

590

Stainless Steel:

15 Type(AustralianStd)

32

44

705 CGA(InternationalStd)

660

330

240

4Soutlet FittingRegulatortothehose

BV Shut-offValve1/4˝

DK DRKdiaphragm1/4˝

4M 1/4˝malefitting

4F 1/4˝femalefitting

2S 1/8˝Swagelok

4S 1/4˝Swagelok(mostcommonlyused)

FM Flowmeter

Regulator Series option

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Scientific Regulator Selection Guide

ScientificRegulators

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Scientific Regulator Quick Reference chartIfthefollowingtablesdonotcontainaregulatortosuityourrequirements,pleasecontactyourlocalScientificSalesSpecialistorourScientificSupportCentreforfurtherdetails(refertobackcoverforcontactdetails).

Regulator Model typical usage

Regulator Description

Max. inlet Pressure (kPa)

outlet Pressures available (kPa)

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inert and non-corrosive Gases – Short term applicationsThesesinglestageregulatorsmaybeusedwhereaslightvarianceindeliverypressureisacceptableascylinderpressuredecreases.Typicallyforgasapplicationtimeframesof<30minutes.

HPS500 ForveryHighpurity,non-corrosivegasapplicationsUsewithHighPurityHydrocarbons,Inert,Oxidising,RareandFlammableGasesNOTE:CannotbeusedforAcetylene

SingleStageBrassRegulator

20,000 0–1050–2800–5600–8750–14000–28000–3500

HPS270 UsewithHighPurity,InertandRareGaseswherebettercontroloverlowdeliverypressuresisrequired.

SingleStageforgedBrassRegulator

20,000 0–105

HPS280 UsewithHighPurityAcetylene SingleStageforgedBrassRegulator

20,000 0–105

inert and non-corrosive Gases – long term applicationsThesedualstageregulatorsshouldbeusedwhereconstantdeliverypressureiscriticaland/orwhenthegasapplicationtimeframeismorethan30minutes.

HPT500 ForveryHighpurity,non-corrosivegasapplicationswhereconstantdeliverypressureisrequiredascylinderpressuredecreases.UsewithHighPurityHydrocarbons,Inert,Oxidising,RareandFlammableGasesNOTE:CannotbeusedforAcetylene

DualStageBrassRegulator

20,000 0–2800–5600–8750–14000–28000–3500

HPT270 UsewithHighPurity,Inert,andRareGaseswherebettercontroloverlowdeliverypressuresisrequired.

DualStageForgedBrassRegulator

20,000 0–105

Reactive and corrosive Gases – Short term applicationsThesesinglestageregulatorsmaybeusedwhereaslightvarianceindeliverypressureisacceptableascylinderpressuredecreases.Typicallyforgasapplicationtimeframesof<30minutes.

SGS500 ForveryHighpurity,reactivegasapplicationswhereslightvarianceindeliverypressureisacceptableascylinderpressuredecreases.UsewithcriticalHighPurity,mildcorrosiveortoxicgasapplications.

SingleStageStainlessSteelRegulator

20,000 0–1050–2800–5600–8750–14000–28000–3500

LB165 Lecturebottlescontainingcorrosivegases SingleStageRegulator

20,000 0–1050–280

S455 Toughestdemands.UsagewithlowpressurecorrosivegasessuchasChlorineandHydrogenChloride

SingleStageCorrosiveGasRegulator

20,000 0–1000–2800–840

S408 Fortoxic,lowpressuregasessuchasAmmoniaandSulphurDioxide

SingleStageMildlyCorrosiveGasRegulator

20,000 0–1050–350


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Regulator Model typical usage

Regulator Description

Max. inlet Pressure (kPa)

outlet Pressures available (kPa)

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Reactive Gases and corrosive Gases – long term applicationsThesedualstageregulatorsshouldbeusedwhereconstantdeliverypressureiscriticaland/orwhenthegasapplicationtimeframeismorethan30minutes.

SGT500 ForveryHighpurity,reactivegasapplications.UsewithcriticalHighPurity,mildcorrosiveortoxicgasapplications.

DualStageStainlessSteelRegulator

20,000 0–1050–2800–5600–8750–14000–28000–3500

Scientific Regulator Selection chart

Gas Regulator Body/Series inlet connection

Acetylene HPS280 CGA510(1B,2B),Type20(G,E,D)

Air zerograde Instrumentgrade

HPS500,HPT500,HP54 AS2473Type60,Type61

Alpha,BetaandSpectra-Seal™Mixtures:

NonFlammable HPS500,HPT500 Type10

Oxidising HPS500,HPT500 Type10

Flammable HPS500,HPT500 Type20

Flammable,Toxic HPS500,HPT500 Type20

Corrosive,Toxic SGS500,SGT500 Type44(orBSNo.14)

Corrosive,Toxic,Flammable SGS500,SGT500 BSNo.15

Ammonia LB165S408

CGA180(LB)CGA660(QF,UF)Type32(WT,WH,S,R)

Argon HPS500,HPT500 Type10CGA580(B,1A)

Arsine SGS500 CGA350

BoronTrichloride Notrequired–usecontrolvalve CGA660

1,3Butadiene LB150 CGA170(LB)CGA510

n-Butane LB150 CGA170(LB)CGA510

1-Butene LB150 CGA170(LB)CGA510

2-Butene(cisandtrans) LB150 CGA170(LB)CGA510

CarbonDioxide HPS500,HPT500 AS2473Type30(D,E,F,G)

CarbonMonoxide LB150HPS500,HPT500

CGA170(LB)CGA350Type20(D)

CarbonylSulphide LB165SGS500,SGT500

CGA180(LB)CGA330


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Chlorine(highpurity) LB165S455

CGA180(LB)CGA660

Cyanogen SGS500 CGA660

Deuterium LB150HPS500,HPT500

CGA170(LB)CGA350

Dichlorosilane Notrequired–usecontrolvalve CGA678

Dimethylether Notrequired–usecontrolvalve CGA170(LB)CGA510

Ethane LB150HPS500

CGA170(LB)CGA350

Ethylene(technicalgrade) LB150HPS500,HPT500

CGA170(LB)CGA350AS2473Type20(D,G)

EthyleneOxide Notrequired–usecontrolvalve AS2473Type40

Germane HPS501 CGA350

Halocarbon11,12,113,114,115,142b,C318 Notrequired–usecontrolvalve CGA660CGA170(LB)

Halocarbon13,1113,116,13B1,115,142b,23,

LB150HPS501

CGA170(LB)CGA510

Helium HPS500,HPT500,HP54 AS2473Type10CGA580(1A,6)

Hexafluoropropylene LB150SGS501

CGA170(LB)CGA660

Hydrogen HPS500,HPT500,HP54 CGA350AS2473Type20(D,E,G)

HydrogenBromide LB165SGS500

CGA180(LB)CGA330

HydrogenChloride(highpurity) LB165SGS500S455

CGA180(LB)CGA330

HydrogenFluoride Notrequired–usecontrolvalve CGA180(LB)CGA660

HydrogenSelenide HPS501 CGA350

HydrogenSulphide LB165SGS500

CGA180(LB)CGA330

Isobutane(researchgrade) Notrequired–usecontrolvalve CGA170(LB)CGA510

Krypton HPS500,HPT500 CGA580

Methane(technicalgrade) LB150HPS500,HPT500

CGA170(LB)CGA350AS2473Type20(D)

MethylBromide Notrequired–usecontrolvalve CGA170(LB)CGA320

MethylChloride Notrequired–usecontrolvalve CGA170(LB)CGA660

MethylFluoride LB165SGS501

CGA180(LB)CGA350


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MethylMercaptan Notrequired–usecontrolvalve CGA180(LB)CGA330

Neon LB165HPS500,HPT500

CGA180(LB)CGA580

NitricOxide SGS500,SGT500 CGA660BS15

Nitrogen HPS500,HPT500,HP54 CGA580(1A,6)AS2473Type50,51

NitrogenDioxide Notrequired–usecontrolvalve CGA660

NitrogenTrifluoride Notrequired–usecontrolvalve BOC679

NitrousOxide(AtomicAbsorption) HPS500,HPT500GPS270

AS2473Type30(D,E,G)

Oxygen HPS500,HPT500HP54

CGA540AS2473Type10(D,EG)

Perfluoropropane Notrequired–usecontrolvalve CGA660

Phosgene Notrequired–usecontrolvalve CGA660

Phosphine SGS500,HPS500 CGA350

PhosphorousPentafluoride SGS500 CGA660

Propadiene(Allene) LB150HPS500,HPT500,HPS501,HPT501

CGA170(LB)CGA510

Propane LB150HPS501

CGA170(LB)CGA510

Propylene LB150HPS501

CGA170(LB)CGA510

Silane SGS530 CGA350

SiliconTetrafluoride SGS500 CGA330

SulphurDioxide UsecontrolvalveorS408 CGA180CGA660AS2473Type32(P,R)

SulphurHexafluoride LB150HPS500

CGA170(LB)CGA590AS2473Type31(D,G)

SulphurTetrafluoride SGS500,SGT500,HPS501,HPT501 CGA330

Xenon HPS500 CGA580


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Model HPS500

Short term applicationsHighpurityhydrocarbons

Inertgases

Oxidisinggases

Raregases

Flammablegases(exceptacetylene)

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Singlestageregulatorwithchromeplatedbrassbody

FeaturesSingleStageBrassChromePlatedforCorrosionResistance–RegulatorforHydrocarbonsInert,Oxidising,RareandFlammableGases

Metaltometaldiaphragmseal

Brassbarstockbodywithminimumgaswettedareaforoptimumpurging

Heliumleakrateof1x10-9scc/sec

Regulatorfittedwithpressuregauges,pressurereliefvalve,cylinderconnectionandoutletfitting

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applicationsChromatography

Reticulationsystems

Purgesystems

Instrumentcalibration

Samplingsystems

Generallyforresearchanddevelopmentlaboratories

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Specifications Materials of constructionMaximuminletpressure 20,000kPa Body Chromeplatedbrassbarstock

Operatingtemperature -17°Cto65°C Bonnet Chromeplatedbrass

Pressurerise <4kPaper700kPainletdecay Diaphragm 316Lstainlesssteel

FlowCoefficient CV=0.083 Seat PCTFE™

InletandOutletPorts 1/4˝NPT(F) Seals Teflon™

common Examples

Boc Part no.Delivery Pressure (kPa)

cylinder connection typical Gas type

G01921 0–875 ASType10 NonFlammablee.g.Oxygen,Argon

G0284 0–875 ASType50 Nitrogen

G0285 0–875 ASType60 Air

G10048 0–875 CGA540 Oxygen

G01922 0–875 ASType20 Flammablee.g.Hydrogen

G01923 0–875 CGA350 CarbonMonoxide,Deuterium,Ethane,Germane,HydrogenSelenide,Methane

G01924 0–875 CGA510 Allene,Halocarbons,Propane,Propylene

G10002 0–875 CGA580 Rareandinerte.g.Argon,Helium,Krypton,Neon,Nitrogen,Xenon

G01991 0–875 CGA590 Nonflammablee.g.Sulphurhexafluoride

G10047 0–875 ASType30 Nonflammablee.g.CarbonDioxide,Nitrousoxide

G01989 0–875 CGA320 Liquefiablegasese.g.CarbonDioxide

Whenorderingpleaserefertotheabovetable.PleasecontactyourlocalScientificSalesSpecialistorourScientificSupportCentreforfurtherdetails(refertobackcoverforcontactdetails).

RegulatorsforNon-CorrosiveGases

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Model HPS270

Short term applicationsHighpuritygases

Inertgases

Raregases

Bettercontroloverlowdeliverypressures

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FeaturesSingleStageBrassRegulatorforHydrocarbons,Inert,Oxidising,RareandFlammableGases


Brassforgedbody



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Reticulationsystems

Purgesystems


Samplingsystems


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Specifications Materials of construction

Maximuminletpressure 20,000kPa Body Chromeplatedforgedbrass

OperatingTemperature -17°Cto65°C Bonnet Chromeplatedbrass

Pressurerise <3.5kPaper700kPainletdecay Diaphragm 316Lstainlesssteel

FlowCoefficient CV=0.05 Seat PCTFE™

InletandOutletPorts 1/4˝NPT(F) Seals PCTFE™andViton®

common Examples

Boc Part no. Delivery Pressure (kPa) cylinder connection typical Gas type




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Model HPS280

Short term applicationsHighPurityAcetylene■


FeaturesSingleStageBrassRegulatorforAcetylene


Brassforgedbody


Regulatorfittedwithpressuregauges,cylinderconnectionandoutletfitting

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applicationsAtomicAbsorptionanalyticalinstrumentation

Reticulationsystems


Samplingsystems


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Specifications

Maximuminletpressure 20,000kPa

OperatingTemperature -17°Cto65°C

Pressurerise <3.5kPaper700kPainletdecay

FlowCoefficient CV=0.05

InletandOutletPorts 1/4˝NPT(F)

Materials of construction

Body Chromeplatedforgedbrass

Bonnet Chromeplatedbrass

Diaphragm 316Lstainlesssteel

Seat PCTFE™

Seals PCTFE™andViton®

common Examples

Boc Part no. Delivery Pressure (kPa) cylinder connection typical Gas type

G10038 105 Type20 Acetylene



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Model HPt500

long term applicationsHighpurityhydrocarbons

Inertgases

Oxidisinggases

Raregases

Flammablegases(exceptacetylene)

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Dualstageregulatorwithchromeplatedbrassbody

FeaturesTwoStageBrassChromePlatedRegulatorforHydrocarbons,Inert,Oxidising,RareandFlammableGases


Brassbarstockbodywithminimumgaswettedareaforoptimumpurging



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Reticulationsystems

Purgesystems


Samplingsystems


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Specifications







Body Chromeplatedbrassbarstock



Seat PCTFE™

Seals Teflon™

common Examples

Boc Part no.Delivery Pressure (kPa)

cylinder connection typical Gas type

G01926 0–875 ASType10 NonFlammablee.g.Oxygen,Argon


G0295 0–875 ASType60 Air

G01947 0–875 ASType20 Flammablee.g.Hydrogen

G01948 0–875 CGA350 CarbonMonoxide,Deuterium,Ethane,Germane,HydrogenSelenide,Methane

G01950 0–875 CGA510 Allene,Halocarbons,Propane,Propylene

G01949 0–875 CGA580 Rareandinerte.g.Argon,Helium,Krypton,Neon,Nitrogen,Xenon

G01994 0–875 CGA590 Nonflammablee.g.Sulphurhexafluoride

G10049 0–875 ASType30 Nonflammablee.g.CarbonDioxide,NitrousOxide

G01993 0–875 CGA320 Liquefiablegasese.g.CarbonDioxide



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Model HPt270

long term applications Highpuritygases

Inertgases

Raregases

Bettercontroloverlowdeliverypressures

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Dualstageregulatorwithbrassbody

FeaturesTwoStageBrassRegulatorforInertandRaregases


Brassforgedbody



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Reticulationsystems

Purgesystems


Samplingsystems


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Specifications







Body Barstockbrass

Bonnet Nickel-platedBrass


Seat PCTFE™

Seals Viton®

common Examples

Boc Part no.Delivery Pressure (kPa) cylinder connection typical Gas type




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Model SGS500

Short term applications Reactivegases

Mildcorrosivegases

Toxicgases

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Singlestageregulatorwithstainlesssteelbody

FeaturesSingleStageStainlessSteelRegulatorforReactiveortoxicgasapplications


StainlessSteelbarstockbodywithminimumgaswettedareaforoptimumpurging



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applicationsGaschromatography

RegulationofCorrosivegases

EpitaxialReactors

Diffusionfurnaces

Researchsamplingsystems


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Specifications



Pressurerise <4kPaper700kPainletdecay




Body Barstock316LStainlesssteel



Seat PCTFE™

Seals Teflon™

common Examples


G01925 0–875 CGA660 Corrosive,Toxiceg,Cyanogen,Halocarbons,Hexafluoropropylene,NitricOxide,PhosphorousPentafluoride

G10003 0–875 CGA330 Corrosive,Toxice.g.CarbonylSulphide,HydrogenBromide,HydrogenChloride,HydrogenSulphide,SulphurTetrafluoride

G01952 0–875 BS15–LHSpectra-Seal Flammable,Corrosive,Toxici.e.BOCSpectraSealmixtures

G01951 0–875 Type44–RHSpectra-Seal Corrosive,Toxici.e.BOCSpectraSealmixtures



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Model lB165

Short term applications Lecturebottlescontainingcorrosivegases■

Singlestageregulatorwithstainlesssteelbody

FeaturesDesignedforusewithcorrosivelecturebottleservice

Compactandlightweight

Stainlesssteelneedleoutletvalve

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Outletconnection1/4˝NPTmale

Regulatorfittedwithpressuregauges,pressure,cylinderconnectionandoutletfitting

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Specifications



Pressurerise <2kPaper700kPainletdecay





Bonnet Nickel-platedbrass


Seat PCTFE™

Seals Teflon®

Gauges Stainlesssteel

common Examples


G01927 280 CGA180 Corrosivee.g.CarbonylSulphide,HydrogenBromide,HydrogenChloride,HydrogenFluoride,HydrogenSulphide,MethylFluoride,Neon


RegulatorsforReactiveandCorrosiveGases

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Model S455

Short term applications Highlycorrosivegases

Chlorine

HydrogenChloride

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Singlestageregulatorwithnickelplatedbrassbody

FeaturesConstructedtoresistattackfromstrongacidforminggasessuchastheHalogens

Directcontrolledsealforaddedsafetyandpositiveshut-off

Specialventedbonnetwithconnectionforventinghazardousmaterialssafelyintheeventofdiaphragmfailure

Gauges,nozzlesandoutletvalveconstructedofMonel®

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applicationsPreciseregulationoflowpressurecorrosivegases■

Specifications


Adjustableoutletpressurerange

0–100kPa0–280kPa0–840kPa



InletandOutletPorts 1/4˝NPT(M)


Body Nickelplatedforgedbrass

Bonnet Nickelplatedbrass


Seat PTFE®

Seals PTFE®

Gauges Monel

BodyPorting 1/4˝NPT(F)

common Examples


G0758 0–840 CGA330 Corrosivee.g.HydrogenChloride



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Model S408

Short term applications Mildlycorrosivegases

Ammonia

SulphurDioxide

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Singlestageregulatorwithanodisedaluminiumbody

FeaturesConstructedtoresistattackfrommildacidforminggases

316Lstainlesssteeldiaphragm–noinboarddiffusion

Specialventedbonnetwithconnectionforventinghazardousmaterialssafelyintheeventofdiaphragmfailure

Gauges,nozzlesandoutletvalveconstructedofMonel®

Pipeawayreliefvalvesafelyventexhaustgases

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applicationsPreciseregulationoflowpressurecorrosivegases■

Specifications


Adjustableoutletpressurerange

0–100kPa0–350kPa



InletandOutletPorts 1/4˝NPT(M)


Body Anodisedaluminiumbarstock

Bonnet Anodisedaluminiumbarstock


Seat PTFE®

Seals PTFE®

Gauges Stainlesssteel

BodyPorting 1/4˝NPT(F)

common Examples


G0741 0–100 Type32 SulphurDioxide

G0742 0–350 Type32 Ammonia

Whenorderingpleaserefertotheabovetable.PleasecontactyourlocalScientificSalesSpecialistorourScientificSupportCentreforfurtherdetails(refertobackcoverfor

contactdetails).


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Model SGt500

long term applications Reactivegases

Mildcorrosivegases

Toxicgases

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Dualstageregulatorwithstainlesssteelbody

FeaturesTwoStageStainlessSteelRegulatorforReactiveortoxicgasapplications:


StainlessSteelbarstockbodywithminimumgaswettedareaforoptimumpurging



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applicationsGaschromatography

RegulationofCorrosivegases

EpitaxialReactors

Diffusionfurnaces

Researchsamplingsystems


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Specifications










Seat PCTFE™

Seals Teflon™

common Examples


G10001 0–875 CGA660 Corrosive,Toxice.g.NitricOxide

G10000 0–875 BS15–LHSpectra-Seal Flammable,Corrosive,Toxici.e.BOCSpectraSealmixtures

G01999 0–875 Type44–RHSpectra-Seal Corrosive,Toxici.e.BOCSpectraSealmixtures



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Detectagas™ Regulators for Disposable cylindersFixed Flow Regulators for disposable cylinders

Key Features and BenefitsFlowrates:0.5LPM,1.0LPMor2.0LPM

KnurledON/OFFknobforeasygripwithorwithoutgloves

Finergraduationsforprecisereadingofcylindercontents

Sideoutletpreventstubingfromkinking

Widechoiceofoutletsandinletsavailable

RotateknobforaudibleclickON/OFF

Nosetscrewonknob,meaningknobwon’tstripout

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Stainlesssteelgauge

Allwettedsurfaceshaveproprietarypassivatedcoatingtoensurenon-reactionwithcalibrationgas

Uniquediaphragmdesigntoholdpresetflowrateevenwhencylinderpressureisdepleted

5/8˝–18UNFinlet

1/8˝hosebarboutlet

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Variable Flow Regulators for disposable cylinders

Key Features and BenefitsSpecificdesignforinstrumentswithsampledrawpumps

Excellentrepeatabilityofsensorresponsetocalibrationgas

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Detectagas™ Regulators for refillable cylindersFixed Flow Regulators for refillable cylinders

Key Features and BenefitsFlowrates:0.5LPM,1.0LPM,1.5LPM,2.0LPMor5.0LPM

Brassorstainlesssteelbodyandfittingstoensuregasqualityisnotcompromised

Compactdesignforuseintoughenvironment

Compactlowprofilehighpressuregaugeprovideseasycheckofcylindercontents

Fineadjustmentvalveonregulatorenablesgasflowtobeturnedoffwithoutneedtoshutoffcylindervalve

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Designandprecisionlasercutgasmeteringorificeprovidesflowaccuracyduringgasusage

SingleStage

315Lstainlesssteeldiaphragm

NoON/OFFvalveversion(usevalveoncylinder)

Contentsgaugewith700kParefillmarking

Adaptersavailableforuseondisposablecylinders

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Variable Flow Regulators for refillable cylinders

Key Features and BenefitsVariableflowrateof0.5–5.0LPM

Chromeplatedbrassbody

Neoprenediaphragm

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SingleStage

Contentsgaugewith700kParefillmarking

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RegulatorsforDetectagas™

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Model HM120

Systems providing a continuous supply of gas

Non-corrosivegases

Connect2ormorecylinders

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TheHM120manifoldisacompactgassupplysystemforinstallationsrequiringanuninterruptedlowtomediumflowofgasatconstantpressure.

Themanifoldsystemconsistsoftwobanksofcylinders,oneoneachsideofthepressurecontrolassembly.Thepositionoftheleverdetermineswhichbankofcylindersis“inuse”andwhichis“inreserve”.Themanifolddrawsgasfromthe“inuse”cylinderbankuntilitisemptied.Themanifoldthenautomaticallystartsdrawinggasfromthe“inreserve”cylinderbank.Whentheemptiedcylinderbankhasbeenreplacedthelevershouldbemovedtotheothersidetoresetthemanifold.

applicationTheHM120autochange-overmanifoldisdesignedtoprovideuninterrupteddeliveryofhighpuritygasesormixturesandliquefiedgaseswithvapourpressuresmorethan950kPa.

Themanifoldisconstructedfromchromeplatedbrassandisforusewithnon-corrosivegases.Modelsareavailableforindustrial,medical,laboratoryandhighpurityapplications.

FeaturesProvidesuninterruptedlowtomediumflowofgas

Easytousechange-overleverindicatescylinderpriority

Twoinletgaugesindicatesupply/pressureineachcylinderbank

Largereasytoreadgaugeindicatesdeliverypressuretoyourapplication

Chromeplatedbrassconstruction

Compactsinglebodydesign

Stainlesssteeldiaphragmswithmetaltometalseal

Suppliedwithcylinderconnectionleads

Serviceconnectionpointavoidsneedtodisruptgassupplywhencheckingsettings

Modularinletheaderdesignallowsforfutureexpansionofsystem

Australiandesignedandmanufactured

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Specifications


Outletpressure(factoryset)

1,000kPa

Maximumflowrate 250LPM@400kPa

Heliumleakrating 2x10-8ml/sec

Inletconnection 3/8˝BSPM

Outletconnection 1/4˝NPTF

Weight 7kg


Body Chromeplatedbrassbarstock

Bonnet Chromeplatedbrassbarstock


Seals Metaltometal

Seats PCTFE™

NRVseals Viton®

Auto-ChangeOverManifold

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Example

Boc Part no.Delivery Pressure (kPa) Gas type cylinder connection

G0344 1000 Specify Refertotable

cylinder connections available are:

ASType10 Oxygen

ASType50 Nitrogen

ASType60 Air

ASType20 Flammable

CGA350 Flammable

cylinder connections available are:

CGA510 Hydrocarbons

CGA580 RareandInert

CGA590 NonFlammable

ASType30 NonFlammable


Model HM120 (cont)

Auto-ChangeOverManifold

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Flowmetersavailable upon request. PleasecontactyourlocalScientificSalesSpecialistorourScientificSupportCentreforfurtherdetails(refertobackcoverforcontactdetails).

Flowmeters

Documents

Regulators - Lawrence Berkeley National Laboratory