cashco 6A00 Manual

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Installation,OperationandMaintenanceInstructionsIOM‐6A00IIA1/IIA
02‐15

Model6A00
InlineDeflagrationFlameArrestor
ChapterI
I.DESCRIPTIONANDAPPLICATION

Asautonomoussafetysystemsforintendeduseinhazardousareasthelistedtypescomplywiththe
requirementsoftheEuropeanDirective2014/34/EUandtheharmonizedstandardforflamearrestorsEN
ISO16852.
Thisdocumentappliestothefollowingtypesaccordingtothecharts1‐3.Thelimitvaluesofthemaximum
operatingpressurep0,themaximumoperatingtemperatureT0andthemaximumdistancetotheignition
sourceLumustbekept!
Ex‐Gr.

Pipesize

Type

p0
[kPa(abs.)]
T0
[°C]
Lu
[m]
EC‐typeexamination
certificate
IIA1
DN15(½")6A0A1110600,75
IBExU13ATEX2122X
DN20(¾")6A0B1110601,00
DN25(1")6A0C1110601,25
DN32(1¼")6A0K1110601,60
DN40(1½")6A0U1110602,00
DN50(2")6A0V1110602,50
DN65(2½")6A131110603,25
DN80(3")6A1B1110604,00
DN100(4")6A1K1110605,00
DN125(5")6A1T1110606,25
DN150(6")6A1U1110607,50
DN200(8")6A2211106010,0
Chart1:TypesofexplosiongroupIIA1(MESG>1,14mm)protectagainstdeflagrationandenduranceburning

Ex‐Gr.

Pipesize

Type

p0
[kPa(abs.)]
T0
[°C]
Lu
[m]
EC‐typeexamination
certificate
IIA1
DN20(¾")6A0B6160601,00
IBExU13ATEX2148X
DN25(1")6A0C6160601,25
DN32(1¼")6A0K6160601,60
DN40(1½")6A0U6160602,00
DN50(2")6A0V6160602,50
DN65(2½")6A136160603,25
DN80(3")6A1B6160604,00
DN100(4")6A1K6160605,00
DN125(5")6A1T6160606,25
DN150(6")6A1U6160607,50
DN200(8")6A2261606010,0
DN250(10”)6A2A61606012,5
DN300(12")6A2H61606015,0
Chart2:TypesofexplosiongroupIIA1(MESG>1,14mm)protectagainstdeflagrationandshorttimeburning
maximumtimeofstabilizedburning1minute

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
Ex‐Gr.

Pipesize

Type

p0
[kPa(abs.)]
T0
[°C]
Lu
[m]
EC‐typeexamination
certificate
IIA
DN20(¾")6A3Y6160601,00
IBExU13ATEX2123X
DN25(1")6A3Z6160601,25
DN32(1¼")6A462120601,60
DN40(1½")6A4E2120602,00
DN50(2")6A4F2120602,50
DN65(2½")6A4P2120603,25
DN80(3")6A4Y2120604,00
DN100(4")6A562120605,00
DN125(5")6A5D2120606,25
DN150(6")6A5E2120607,50
DN200(8”)6A5N21206010,0
DN250(10”)6A5X21206012,5
DN300(12")6A6421206015,0
Chart3:TypesofexplosiongroupIIA(MESG>0,9mm)protectagainstdeflagrationandshorttimeburning
maximumtimeofstabilizedburning1minute

Thesuitabilityfortheapplicationingas/airmixturesandvapor/airmixturesofinflammableliquidsofthe
explosiongroupIIA1andIIAhasbeenconfirmedbythesuccessfultestingatIBExUinFreiberg(stated
locationNo.0637)accordingtoarticle17oftheDirective2014/34/EUwiththerespectiveEC‐/EU‐type
examinationcertificate.Underatmosphericconditions(pressure:80to110kPa(abs.),temperature:‐20to
+60⁰C)theflamearrestorsaccordingtothecharts1‐3aresuitableforprotectionagainstdeflagration.

Incaseofastabilizedburningsituationnotlimitedbytimeandanoperatingpressure(p0)≤110kPa(abs.)
theflamearrestorsaccordingtochart1areprotectedagainstenduranceburning.Attention!The
protectionagainstenduranceburningrefersexclusivelytotheexistenceofpurehydrocarbons.An
applicationextendedtootherchemicalsrequiresanothertestingwiththesespecificchemicals.

Incaseofastabilizedburningsituationnotlimitedbytimeandanoperatingpressure(p0)>110kPa(abs.)
theinstallationofatleastoneintegratedtemperaturesensorontheunprotectedsideoftheflamearrestor
inconnectionwithactivatinganemergencyfunction(e.g.interruptingorinertingangasmixture)with
exceedingtheoperatingtemperatureof≥20Kisobligatory.Themaximumacceptabletimeofstabilized
burningis1minute.

TheappropriatevalidapplicationlimitsaredocumentedatdeliveryreferringtotherelevantEC‐/EU‐type
examinationcertificateintherespectiveinspectioncertificateaccordingtoEN10204.TheCEmarkingofthe
flamearresterdocumentsthecompliancewiththesafetyandhealthrequirementsstatedintheDirective
2014/34/EU“Equipment and protective systems intended for use in potentially explosive atmospheres”by
therespectivedeclarationofcompliance.

Theflamearrestorsshallonlybeusedwhentheirmaterialisresistanttomechanicaland/orchemical
influencesorcorrosionunderrespectiveoperatingconditionssothattheexplosionpreventionand
protectionarenotsetaside.Thisisespeciallyapplicabletothecrimpedmetalribbonoftheflamearrestors
whosesafetyagainstflamepropagationmaybeputatriskbycorrosion.



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ChapterII
II.SafetyInstructions

ThemarkingoftheflamearrestoriscarriedoutaccordingtoENISO16852respectivetheirapplication.
Eachflamearrestorismarkedwithanameplateandawarningsign.Thenameplateasshowninfigure1
containsthefollowinginformation:


Fig.1




1.Nameandaddressofthemanufacturer
2.Typedesignation
3.NumberoftheEC‐typeexaminationcertificate
4.Serialnumber/yearofmanufacture
5.Pipesize
6.Markinghazardousarea„G“forgasandvapor
7.Explosiongroup
8.Standardforflamearrester
9.CE‐markingwithdetailsofthenamedlocation


Thewarningsignasshowninfigure2containsthefollowinginformation:


Fig.2




1.“Warning“withthesupplement“InstallationandapplicationlimitsaccordingtoISO16852“
2.MarkingaccordingtoISO16852:DEF
3.ExplosiongroupEx‐G:accordingtocharts1‐3
4.MaximumoperatingtemperatureT0andmaximumoperatingpressureaccordingtocharts1‐3
5.RatioLu/D(maximumdistancetoignitionsource/connection‐Øoftheflamearrester)
6.Classificationofburnratinga,borc
7.BurntimetBT(informationonlyinconnectionwithflammabilityclassificationb):1min


Themarkingwiththewarningnotice(fig.3)isonlygivenforflamearrestorswhichareclassifiedas
protectedagainstshortburning“b”orenduranceburning“c”.Themarking“protectedside”(fig.4)isonly
givenforflamearrestersfunctioningonlytooneside.

Fig.3Fig.4








Geschützte Seite
Protected Side
25 3 6 4 7 4
273 4 5

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ChapterIII
III.TRANSPORTANDSTORAGE

Theflamearrestorshallbepackedcarefullyinordertopreventdamagesorimpurityduringthetransport
orstorage.
ChapterIV
IV.INSTALLATIONANDASSEMBLY

Basically,theinstallationandassemblyoftheflamearrestoriscarriedoutconsideringtherespective
applicationlimitsandregulationsforthescope,especiallytheappropriateinstructionforaccident
preventionbythecustomer.

Theinstallationstartswithremovingtheplugconnection/flangecoverattheinletandoutletoftheflame
arrestor.Thethreadsrespectivelythefacingoftheflangesshallbecheckedondamages,foreignmaterial
ordirt.Theassemblyispossiblehorizontallyaswellasvertically.Atensionlessfittingshallbeguaranteed.
Additionally,attentionshallbepaidtothefactthattheflamearrestorisnotusedasabearingposition.If
theflamearrestorismarkedwithasticker“Protectedside”thissidehastobeinstalledopposingthe
potentialignitionsource.Withbi‐directionallyworkingflamearrestorsapositioningconsideringthe
potentialignitionsourceisnotrequired.

Forinlineflamearrestorsthepipesizeontheprotectedsideshallnotbesmallerthantheoneonthe
unprotectedside.Forinlineflamearrestorsthepipesizeontheunprotectedsideshallnotbebiggerthan
theconnectionsizeoftheflamearrestor.Thedistance(Lu)betweenthepotentialignitionsourceandthe
deflagrationinlineflamearrestorshallnotexceedthedatagiveninthecharts1‐3.

Iftheflamearrestorismarkedas“Protectedagainstenduranceburning”(BC:a),itmustnotbeinsulatedor
encased.Withamarking“Protectedagainstshortburning”(BC:b)atleastonescrewplugincludingthe
usedsealringhastoberemovedafterassemblingtheflamearrestor.Itshallbereplacedbytheincluded
resistancethermometer(PT100)+sealring.Ifastabilizedburningispossibleonbothsides,atleastone
temperaturesensingdeviceshallbeinstalledoneachside.Theinstallationguidelinesbythemanufacturer
oftheresistancethermometerandhisrequirementsofcomplianceshallbefulfilled.Thentheinstalled
temperaturesensingdeviceordeviceswillhavetobeintegratedintothecompletesysteminorderto
activateanemergencyfunction.Thecircuitmustpermitaclearingoftheominousstatewithin50%ofthe
burntimestatedonthewarningsign.Resistancethermometersofotherbrandsmaybeusediftheir
measurefeaturesareidenticalwiththemeasurefeaturesoftheresistancethermometersusedintesting,
andiftheelectricalexplosionprotectionmeetstherespectiveapplicationconditionsoftheflamearrestor.

Inordertoguaranteethatnogaptotheatmospherehasdevelopedaleakagetestshouldbecarriedout
beforeinitialoperation.Attention!Exceedingthetestpressuresstatedintheinspectioncertificate
(EN10204)isineligible.

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ChapterV
V.MAINTENANCE

Attention:theseworksshallonlybecarriedoutbyinstructedqualifiedstaff!AllpartsoftheassemblykitA
(comparechapterVI)mustbekeptathand.

Astheoperationalconditionsvaryalot,thereisnotemporalmaintenanceintervalsuggested.We
recommendtocheckthestateoftheflamearrestorevery6month.Herenotonlythehousingoftheflame
arrestorbutalsothecrimpedmetalribbonsshallbecheckedonimpurity,corrosionanddeformation.The
sameappliestotheresistancethermometer(additionallyperiodicfunctioncheck)ifpresent.

Ifacleaningisplannedtheflamearrestorelement(3)betweenthehousingscanbedismantled.Therefore,
thethreadedbolt/screwnut(6,7)shallbeloosened.Atminorimpuritytheflamearrestoristobeblown
outwithcompressedairorsuperheatedsteaminoppositiontotheoperatingdirectionofflow.Incaseofa
majorimpurityofthecrimpedmetalribbonstheflamearrestorelementmayberinsedwithacleaning
compound.Mechanicaldamagesofthebeadingmustbeprevented!Theexchangeofthecrimpedmetal
ribbonscanbeessentialifthecrimpedmetalribbonshavebeendamagedmechanicallyorchemically
(corrosion)orifmorethan20%ofthecross‐sectionareacannotbepassedthroughafteracleaning.After
cleaningtheflamearrestorshallbedried,thetightfitofthecentrescrew(8)shallbechecked(compare
chart)andtheflamearrestorshallbeassembledinreverseorder.Itisrecommendedtoexchangethe
o‐rings(5).
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Thescrewsshallbefastenedwiththetorqueslistedinthefollowingchart.
Pos.Mat.
Torques[Nm]
DN20‐DN32
(¾“‐1¼“)
DN40/DN50
(1½“/2“)
DN65/DN80
(2½“/3“)
DN100
(4“)
DN125/DN150
(5“/6“)
DN200
(8“)
DN250
(10“)
DN300
(12“)
6,7
CS275493230465800
SS254580185400680
8SS12122545185400680
CS=CarbonSteel,SS=StainlessSteel
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Afteranexplosionwithoutorwithstabilizedburningattheflamearrestoritmustbedismountedand
checkedbyinstructedqualifiedstaff!Dependingontheexplosionorcombustionanexchangeofthe
crimpedmetalribbonandthecorrespondingpartsmaybesufficient.However,consideringtheyearof
manufacturethereplacementofthecompleteinstrumentmayoftenbethecheaperway.Atflame
arrestorswithresistancethermometersthefunctioningoftheresistancethermometershallbechecked
afterthemaintenance.ThereinstallationintothecompletesystemiscarriedoutaccordingtochapterIV.
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Ifitisnecessarytoreplacesinglecomponentsoftheflamearrestor,onlyoriginalCashco‐sparepartsshall
beused.
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04/16Page6
ChapterVI
VI.INFORMATIONFORORDERINGSPAREPARTS
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Fororderingsparepartsthe18‐digitserialnumberonthenameplatemustbeidentified.Specifyyour
demandforsparepartsbymeansofthepositionnumberandthemaintenanceinstruction(chapterV).
ContactyourlocalCashcosalesrepresentativeandstatetheserialnumberandthepositionnumber.Then
thesalesrepresentativecanquoteapricefortherequiredparts.
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Positionnumbersforfig.5.1and5.2   Positionnumbersforfig.6
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Fig.5.1–Standardtypeofthreadingmodel6A00
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Pos.Description
Main‐
tenance
KitA
1Housing1
2Housing2
3CrimpedmetalribbonX
4Star
5RoundringX
6Hexagonscrew
8Centrescrew,nut
9Resistancethermometer
10ScrewplugX
11SealringX
Pos.Description
Main‐
tenance
KitA
1Housing 1
2Housing 2
3FlamearresterelementX
5Roundring X
6,7Thread,nut
8Centrescrew
9Resistancethermometer
10 Screwplug X
11 Sealring X
8

04/16Page7
3
1
10,11
5
9
2
6,7
8
11
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Fig5.2–Standardtypeofflangesmodel6A00
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Fig.6–Standardtypeofflangeswithcagemodel6A00
8