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
SGEM 2006: SEction 9 [REGulatoRS] 143
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
SGEM 2006: SEction 9 [REGulatoRS]144
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
SGEM 2006: SEction 9 [REGulatoRS] 145
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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SGEM 2006: SEction 9 [REGulatoRS] 147
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
ScientificRegulators
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SGEM 2006: SEction 9 [REGulatoRS]148
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
ScientificRegulators
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SGEM 2006: SEction 9 [REGulatoRS] 149
Gas Regulator Body/Series inlet connection
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
ScientificRegulators
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SGEM 2006: SEction 9 [REGulatoRS]150
Gas Regulator Body/Series inlet connection
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
ScientificRegulators
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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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Singlestageregulatorwithchromeplatedbrassbody
FeaturesSingleStageBrassRegulatorforHydrocarbons,Inert,Oxidising,RareandFlammableGases
Metaltometaldiaphragmseal
Brassforgedbody
Heliumleakrateof1x10-8scc/sec
Regulatorfittedwithpressuregauges,pressurereliefvalve,cylinderconnectionandoutletfitting
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applicationsChromatography
Reticulationsystems
Purgesystems
Instrumentcalibration
Samplingsystems
Generallyforresearchanddevelopmentlaboratories
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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
G0345 0–105 ASType50 Nitrogen
Whenorderingpleaserefertotheabovetable.PleasecontactyourlocalScientificSalesSpecialistorourScientificSupportCentreforfurtherdetails(refertobackcoverforcontactdetails).
RegulatorsforNon-CorrosiveGases
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Model HPS280
Short term applicationsHighPurityAcetylene■
Singlestageregulatorwithchromeplatedbrassbody
FeaturesSingleStageBrassRegulatorforAcetylene
Metaltometaldiaphragmseal
Brassforgedbody
Heliumleakrateof1x10-8scc/sec
Regulatorfittedwithpressuregauges,cylinderconnectionandoutletfitting
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applicationsAtomicAbsorptionanalyticalinstrumentation
Reticulationsystems
Instrumentcalibration
Samplingsystems
Generallyforresearchanddevelopmentlaboratories
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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
Whenorderingpleaserefertotheabovetable.PleasecontactyourlocalScientificSalesSpecialistorourScientificSupportCentreforfurtherdetails(refertobackcoverforcontactdetails).
RegulatorsforNon-CorrosiveGases
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SGEM 2006: SEction 9 [REGulatoRS]154
Model HPt500
long term applicationsHighpurityhydrocarbons
Inertgases
Oxidisinggases
Raregases
Flammablegases(exceptacetylene)
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Dualstageregulatorwithchromeplatedbrassbody
FeaturesTwoStageBrassChromePlatedRegulatorforHydrocarbons,Inert,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
Maximuminletpressure 20,000kPa
OperatingTemperature -17°Cto65°C
Pressurerise <0.5kPaper700kPainletdecay
FlowCoefficient CV=0.128
InletandOutletPorts 1/4˝NPT(F)
Materials of construction
Body Chromeplatedbrassbarstock
Bonnet Chromeplatedbrass
Diaphragm 316Lstainlesssteel
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
G0294 0–875 ASType50 Nitrogen
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
Whenorderingpleaserefertotheabovetable.PleasecontactyourlocalScientificSalesSpecialistorourScientificSupportCentreforfurtherdetails(refertobackcoverforcontactdetails).
RegulatorsforNon-CorrosiveGases
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SGEM 2006: SEction 9 [REGulatoRS] 155
Model HPt270
long term applications Highpuritygases
Inertgases
Raregases
Bettercontroloverlowdeliverypressures
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Dualstageregulatorwithbrassbody
FeaturesTwoStageBrassRegulatorforInertandRaregases
Metaltometaldiaphragmseal
Brassforgedbody
Heliumleakrateof1x10-8scc/sec
Regulatorfittedwithpressuregauges,pressurereliefvalve,cylinderconnectionandoutletfitting
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applicationsChromatography
Reticulationsystems
Purgesystems
Instrumentcalibration
Samplingsystems
Generallyforresearchanddevelopmentlaboratories
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Specifications
Maximuminletpressure 20,000kPa
OperatingTemperature -17°Cto65°C
Pressurerise <0.7kPaper700kPainletdecay
FlowCoefficient CV=0.04
InletandOutletPorts 1/4˝NPT(F)
Materials of construction
Body Barstockbrass
Bonnet Nickel-platedBrass
Diaphragm 316Lstainlesssteel
Seat PCTFE™
Seals Viton®
common Examples
Boc Part no.Delivery Pressure (kPa) cylinder connection typical Gas type
G0346 0–105 ASType50 Nitrogen
Whenorderingpleaserefertotheabovetable.PleasecontactyourlocalScientificSalesSpecialistorourScientificSupportCentreforfurtherdetails(refertobackcoverforcontactdetails).
RegulatorsforNon-CorrosiveGases
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SGEM 2006: SEction 9 [REGulatoRS]156
Model SGS500
Short term applications Reactivegases
Mildcorrosivegases
Toxicgases
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Singlestageregulatorwithstainlesssteelbody
FeaturesSingleStageStainlessSteelRegulatorforReactiveortoxicgasapplications
Metaltometaldiaphragmseal
StainlessSteelbarstockbodywithminimumgaswettedareaforoptimumpurging
Heliumleakrateof1x10-9scc/sec
Regulatorfittedwithpressuregauges,cylinderconnectionandoutletfitting
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applicationsGaschromatography
RegulationofCorrosivegases
EpitaxialReactors
Diffusionfurnaces
Researchsamplingsystems
Generallyforresearchanddevelopmentlaboratories
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Specifications
Maximuminletpressure 20,000kPa
OperatingTemperature -40°Cto65°C
Pressurerise <4kPaper700kPainletdecay
FlowCoefficient CV=0.083
InletandOutletPorts 1/4˝NPT(F)
Materials of construction
Body Barstock316LStainlesssteel
Bonnet Chromeplatedbrass
Diaphragm 316Lstainlesssteel
Seat PCTFE™
Seals Teflon™
common Examples
Boc Part no.Delivery Pressure (kPa) cylinder connection typical Gas type
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
Whenorderingpleaserefertotheabovetable.PleasecontactyourlocalScientificSalesSpecialistorourScientificSupportCentreforfurtherdetails(refertobackcoverforcontactdetails).
RegulatorsforNon-CorrosiveGases
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SGEM 2006: SEction 9 [REGulatoRS] 157
Model lB165
Short term applications Lecturebottlescontainingcorrosivegases■
Singlestageregulatorwithstainlesssteelbody
FeaturesDesignedforusewithcorrosivelecturebottleservice
Compactandlightweight
Stainlesssteelneedleoutletvalve
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Heliumleakrateof2x10-9scc/sec
Outletconnection1/4˝NPTmale
Regulatorfittedwithpressuregauges,pressure,cylinderconnectionandoutletfitting
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Specifications
Maximuminletpressure 20,000kPa
OperatingTemperature -17°Cto65°C
Pressurerise <2kPaper700kPainletdecay
FlowCoefficient CV=0.05
InletandOutletPorts 1/4˝NPT(F)
Materials of construction
Body Barstock316LStainlesssteel
Bonnet Nickel-platedbrass
Diaphragm 316Lstainlesssteel
Seat PCTFE™
Seals Teflon®
Gauges Stainlesssteel
common Examples
Boc Part no.Delivery Pressure (kPa) cylinder connection typical Gas type
G01927 280 CGA180 Corrosivee.g.CarbonylSulphide,HydrogenBromide,HydrogenChloride,HydrogenFluoride,HydrogenSulphide,MethylFluoride,Neon
Whenorderingpleaserefertotheabovetable.PleasecontactyourlocalScientificSalesSpecialistorourScientificSupportCentreforfurtherdetails(refertobackcoverforcontactdetails).
RegulatorsforReactiveandCorrosiveGases
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SGEM 2006: SEction 9 [REGulatoRS]158
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
Maximuminletpressure 20,000kPa
Adjustableoutletpressurerange
0–100kPa0–280kPa0–840kPa
OperatingTemperature -28°Cto60°C
FlowCoefficient CV=0.2
InletandOutletPorts 1/4˝NPT(M)
Materials of construction
Body Nickelplatedforgedbrass
Bonnet Nickelplatedbrass
Diaphragm 316Lstainlesssteel
Seat PTFE®
Seals PTFE®
Gauges Monel
BodyPorting 1/4˝NPT(F)
common Examples
Boc Part no.Delivery Pressure (kPa) cylinder connection typical Gas type
G0758 0–840 CGA330 Corrosivee.g.HydrogenChloride
Whenorderingpleaserefertotheabovetable.PleasecontactyourlocalScientificSalesSpecialistorourScientificSupportCentreforfurtherdetails(refertobackcoverforcontactdetails).
RegulatorsforReactiveandCorrosiveGases
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SGEM 2006: SEction 9 [REGulatoRS] 159
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
Maximuminletpressure 20,000kPa
Adjustableoutletpressurerange
0–100kPa0–350kPa
OperatingTemperature -28°Cto60°C
FlowCoefficient CV=0.1
InletandOutletPorts 1/4˝NPT(M)
Materials of construction
Body Anodisedaluminiumbarstock
Bonnet Anodisedaluminiumbarstock
Diaphragm 316Lstainlesssteel
Seat PTFE®
Seals PTFE®
Gauges Stainlesssteel
BodyPorting 1/4˝NPT(F)
common Examples
Boc Part no.Delivery Pressure (kPa) cylinder connection typical Gas type
G0741 0–100 Type32 SulphurDioxide
G0742 0–350 Type32 Ammonia
Whenorderingpleaserefertotheabovetable.PleasecontactyourlocalScientificSalesSpecialistorourScientificSupportCentreforfurtherdetails(refertobackcoverfor
contactdetails).
RegulatorsforReactiveandCorrosiveGases
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SGEM 2006: SEction 9 [REGulatoRS]160
Model SGt500
long term applications Reactivegases
Mildcorrosivegases
Toxicgases
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Dualstageregulatorwithstainlesssteelbody
FeaturesTwoStageStainlessSteelRegulatorforReactiveortoxicgasapplications:
Metaltometaldiaphragmseal
StainlessSteelbarstockbodywithminimumgaswettedareaforoptimumpurging
Heliumleakrateof1x10-9scc/sec
Regulatorfittedwithpressuregauges,cylinderconnectionandoutletfitting
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applicationsGaschromatography
RegulationofCorrosivegases
EpitaxialReactors
Diffusionfurnaces
Researchsamplingsystems
Generallyforresearchanddevelopmentlaboratories
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Specifications
Maximuminletpressure 20,000kPa
OperatingTemperature -40°Cto65°C
Pressurerise <0.5kPaper700kPainletdecay
FlowCoefficient CV=0.128
InletandOutletPorts 1/4˝NPT(F)
Materials of construction
Body Barstock316LStainlesssteel
Bonnet Chromeplatedbrass
Diaphragm 316Lstainlesssteel
Seat PCTFE™
Seals Teflon™
common Examples
Boc Part no.Delivery Pressure (kPa) cylinder connection typical Gas type
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
Whenorderingpleaserefertotheabovetable.PleasecontactyourlocalScientificSalesSpecialistorourScientificSupportCentreforfurtherdetails(refertobackcoverforcontactdetails).
RegulatorsforReactiveandCorrosiveGases
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SGEM 2006: SEction 9 [REGulatoRS] 161
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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SGEM 2006: SEction 9 [REGulatoRS]162
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
Maximuminletpressure 20,000kPa
Outletpressure(factoryset)
1,000kPa
Maximumflowrate 250LPM@400kPa
Heliumleakrating 2x10-8ml/sec
Inletconnection 3/8˝BSPM
Outletconnection 1/4˝NPTF
Weight 7kg
Materials of construction
Body Chromeplatedbrassbarstock
Bonnet Chromeplatedbrassbarstock
Diaphragm 316Lstainlesssteel
Seals Metaltometal
Seats PCTFE™
NRVseals Viton®
Auto-ChangeOverManifold
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SGEM 2006: SEction 9 [REGulatoRS] 163
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
Whenorderingpleaserefertotheabovetable.PleasecontactyourlocalScientificSalesSpecialistorourScientificSupportCentreforfurtherdetails(refertobackcoverforcontactdetails).
Model HM120 (cont)
Auto-ChangeOverManifold
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