1、BRITISH STANDARD BS EN 12259-5:2002 Fixed firefighting systems Components for sprinkler and waterspray systems Part 5: Water flow detectors The European Standard EN 12259-5:2002 has the status of a British Standard ICS 13.220.20 BS EN 12259-5:2002 This British Standard, having been prepared under th
2、e direction of the Health and Environment Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 4 December 2002 BSI 4 December 2002 ISBN 0 580 40891 4 National foreword This British Standard is the official English language version
3、of EN 12259-5:2002. This European Standard is the subject to transitional arrangements agreed under a Commission mandate which is intended to lead to CE marking in support of the Construction Products Directive. In order to allow for any changes in national regulations, the Member States have agreed
4、 a transition period of 21 months before CE marking becomes effective. The UK participation in its preparation was entrusted by Technical Committee FSH/18, Fixed firefighting system, to Subcommittee FSH/18/2, Sprinklers, which has the responsibility to: A list of organizations represented on this su
5、bcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using
6、the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from
7、 legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the U
8、K. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 32, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date
9、CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN122595 September2002 ICS13.220.20 Englishversion FixedfirefightingsystemsComponentsforsprinklerandwater spraysystemsPart5:Waterflowdetectors InstallationsfixesdeluttecontrelincendieComposants dessystmesdextinctiondutypeSprinkleuret pulvrisatio
10、ndeauPartie5:Indicateursdepassagedeau OrtsfesteLschanlagenBauteilefrSprinklerund SprhwasseranlagenTeil5:Strmungsmelder ThisEuropeanStandardwasapprovedbyCENon10August2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatu
11、sofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation un
12、dertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,
13、Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN122595:2002EEN12
14、2595:2002(E) 2 Contents page Foreword .4 1 Scope .5 2 Normativereferences .5 3 Termsanddefinitions. 6 4 Constructionandperformance 6 4.1 General 6 4.2 Connections6 4.3 Ratedworkingpressure 6 4.4 Components .6 4.4.1 Waterpressureretainingparts .6 4.4.2 Configuration 7 4.4.3 Strength7 4.4.4 Fatigueres
15、istanceofspringsanddiaphragms 7 4.4.5 Materialsforcontactingparts .7 4.4.6 Microswitches.7 4.4.7 Earthingandelectricalconnections . 7 4.4.8 Nonmetalliccomponents(excludinggasketsandseals). .7 4.4.9 Sealingelements .7 4.5 Clearances.8 4.6 Operation .8 4.7 Corrosionresistance 8 4.8 Pressurelossduetohy
16、draulicfriction . 9 4.9 Leakresistance. .9 4.10 Endurance9 4.11 Maintenance.9 5 Marking.9 6 Instructionsforinstallationandoperation . .10 7 Evaluationofconformity .10 7.1 General 10 7.2 Initialtypetesting .10 7.3 Factoryproductioncontrol(FPC) .10 AnnexA(normative)Verificationofconnectiondimensiontes
17、t . .12 AnnexB(normative)Pressurisationstrengthtest .13 AnnexC(normative)Resistancetoageingtestfornonmetalliccomponents(excludinggasketsandseals) .14 C.1 Airovenageing .14 C.2 Warmwaterageing .14 AnnexD(normative)Sealingelementstests .15 D.1 Nonreinforcedelastomericseals 15 D.2 Reinforcedelastomeric
18、seals .15 AnnexE(normative)Clearancestests 16 E.1 Pressfitbrushingtest . .16 E.2 Pipeworkobstructiontest. 16 AnnexF(normative)Operationtests. 17 F.1 Sensitivity.17 F.2 Operationalcycling .17EN122595:2002(E) 3 F.2.1 Contactresistancetest . .17 F.2.2 Insulationresistancetest .18 F.3 Temperatureresista
19、nce. .19 AnnexG(normative)Saltmistcorrosionresistancetest. 20 G.1 Reagents20 G.2 Apparatus.20 G.3 Procedure 20 AnnexH(normative)Hydraulicfrictionpressurelosstest. 21 AnnexI(normative)Leakageresistancetest . .22 AnnexJ(normative)Endurancetest .23 AnnexK(informative)Typicaltestingscheduleandexampleoft
20、estspecimennumberofwaterflowdetectors.24 AnnexZA(informative)ClausesofthisEuropeanStandard addressingessentialrequirementsorotherprovisions ofEUDirectives . 28 Bibliography 32EN122595:2002(E) 4 Foreword ThisdocumentEN122595:2002hasbeenpreparedbyTechnicalCommitteeCEN/TC191“Fixedfirefighting systems“,
21、thesecretariatofwhichisheldbyBSI. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyMarch2003,andconflictingnationalstandardsshallbewithdrawnatthelatestby September2005. ThisEuropeanStandardhasbeenpreparedunderamandategiven
22、toCENbytheEuropeanCommissionandthe EuropeanFreeTradeAssociationandsupportsessentialrequirementsofEUDirective89/106/EEC. ForrelationshipwithEUDirective(s),seeinformativeannexZA,whichisanintegralpartofthisdocument. ItformsonePartofEN12259,coveringcomponentsforautomaticsprinklersystems,andisincludedina
23、seriesof EuropeanStandardsplannedtocover: automaticsprinklersystems(EN12259 1) ); gaseousextinguishingsystems(EN12094 1) ); powdersystems(EN12416); explosionprotectionsystems(EN26184); foamsystems(EN13565 1) ); hosereelsystems(EN671); smokeandheatcontrolsystems(EN12101 1) ); waterspraysystems(ENxxxx
24、 1) ). EN12259hasthegeneraltitleFixedfirefightingsystemsComponentsforsprinklerandwaterspraysystems andwillconsistofthefollowingParts: Part1:Sprinklers Part2:Wetalarmvalveassemblies Part3:Dryalarmvalveassemblies Part4:Watermotoralarms Part5:Waterflowdetectors Part6:Pipecouplings Part7:Pipehangers Par
25、t8:Pressureswitches 1) Inpreparation.EN122595:2002(E) 5 Part9:Delugealarmvalveassemblies Part10:Multiplecontrols Part11:Mediumandhighvelocitywatersprayers Part12:Pumpsets TheannexesAtoJarenormative;annexKisinformative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsoft
26、hefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain, Sweden,SwitzerlandandtheUnitedKingdom. 1Scope ThisEuropeanStandardspecifiesrequirementsforconstr
27、uctionandperformanceandtestsforwaterflow detectorsforuseinwetpipeautomaticsprinklersystemsconformingtoEN12845Fixedfirefightingsystems AutomaticsprinklersystemsDesignandInstallation 2 ). Auxiliarycomponentsandattachmentstowaterflowdetectorsarenotcoveredbythisstandard. 2 Normativereferences ThisEurope
28、anStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincor
29、poratedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN603351,Safetyofhouseholdandsimilarelectricalappliances,Part1:Generalrequirements(IEC60335 1:1991,modified). IEC610206, Electromechanicalswitches.Part6:Sectionalspecificatio
30、nforsensitiveswitches. ISO37, Rubber,vulcanisedorthermoplasticDeterminationoftensilestressstrainproperties. ISO49, MalleablecastironfittingsthreadedtoISO71. ISO65, CarbonsteeltubessuitableforscrewinginaccordancewithISO71. ISO188, Rubber,vulcanizedorthermoplasticAcceleratedageingandheatresistancetest
31、s. ISO8981, MechanicalpropertiesoffastenersmadeofcarbonsteelandalloysteelPart1:Bolts,screwsand studs. ISO8982, MechanicalpropertiesoffastenersPart2:Nutswithspecifiedproofloadvalues;coarsethread. 2 ) InpreparationEN122595:2002(E) 6 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowi
32、ngtermsanddefinitionsapply. 3.1 flowvelocity watervelocitythroughapipeofthesamenominalsizeasthewaterflowdetectoratthesameflowrate 3.2 ratedworkingpressure maximumworkingpressureatwhichthewaterflowdetectorisintendedtooperate 3.3 reinforcedelastomericelement elementsinacompositeofanelastomericcompound
33、withoneormoreothercomponentsthatincreasesthetensile strengthofthecombinationtoatleasttwicethatoftheelastomericmaterialalone 3.4 sensitivity minimumrateofflowofwaterflowdetectorinadownstreamdirectionwhichwillcauseoperationandgiveasignal 3.5 waterflowdetector devicewhichrespondsatapresetflowrateonlyin
34、theintendeddirectionandoperateselectricalcontacts 4 Constructionandperformance 4.1 General Thewaterflowdetectorshallbesuitableforinstallation,withoutmodification.Itshallbepossibletoremove completelythewaterflowdetectorfromthepipingwithoutleavingobstructionsinthepipe. Unlessotherwiseindicatedbythesup
35、pliertheflowswitchshallbeevaluatedforsuitabilitywithtubeinaccordance withISO65. 4.2 Connections Thedimensionsofallconnectionsshallbespecifiedbythewaterflowdetectorsupplier. VerificationofthespecifieddimensionsshallbetestedasspecifiedinannexA. 4.3 Ratedworkingpressure Theratedworkingpressureofwaterfl
36、owdetectorsshallbenotlessthan12bar. 4.4 Components 4.4.1 Waterpressureretainingparts Thewaterpressureretainingpartsofthedetectors(otherthangasketsorseals)shallbemadeofcastiron,bronze, brass,monelmetal,stainlesssteel,titanium,aluminiumalloyormaterialshaving equivalentphysicalandmechanical properties.
37、Aluminiumalloyandcastironshallnotbeincontactwiththewater.EN122595:2002(E) 7 4.4.2 Configuration Thedesignofanycomponent,whichmaybenormallydisassembledduringservicing,shallbesuchthatitcannot bereassembledwrongly. 4.4.3 Strength 4.4.3.1 Theinstalledwaterflowdetectorshallwithstand,withoutleakage,perman
38、entdistortionorbreakageof components,aninternalhydrostaticpressureoffourtimestheratedworkingpressure,foraperiodof5min,when testedinaccordancewithannexB. 4.4.3.2 Thecalculatedloadofanyfastener,excludingtheforcerequiredtocompressthegasket,shallnot exceedtheminimumtensilestrengthspecifiedinISO 8981andI
39、SO 8982,whenthewaterflowdetectoris pressurisedtofourtimestheratedworkingpressure.Theareaoftheapplicationofpressureshallbecalculatedas follows: i f afullfacegasketisused,theareaofforceapplicationisthatextendingouttolinedefinedbytheinneredge ofthebolts;forexampleinaflangedconnection; ifatoroidalsealin
40、gringorringgasketisused,theareaofforceapplicationisthatextendingouttothecentre lineofthetoroidalsealingringorringgasket. 4.4.4 Fatigueresistanceofspringsanddiaphragms Springsanddiaphragmsshallnotfractureorruptureduring10000cyclesofnormaloperationwhentestedin accordancewiththeoperationalcyclingtestin
41、F.2. 4.4.5 Materialsforcontactingparts Anypartanditsbearing,excludingseals,gasketsanddiaphragms,whererotationorslidingmotionisrequired, shallbemadeofbronze,brass,monelmetal,stainlesssteel,titaniumormaterialshavingequivalentphysicaland mechanicalproperties. 4.4.6 Microswitches Microswitcheswhereincor
42、poratedshallbeinaccordancewithIEC610206. 4.4.7 Earthingandelectricalconnections EarthingandelectricalconnectionsshallbeinaccordancewithEN603351. 4.4.8 Nonmetalliccomponents(excludinggasketsandseals) AfterageinginaccordancewithannexCthereshallbenocracking,warping,creeporothersignsofdeterioration ofno
43、nmetalliccomponentsandthewaterflowdetectorshallmeettheoperationalandleakresistance requirementsof4.6and4.9whentestedinaccordancewithannexesFandI. SeparatesamplesshallbesubjectedtothetestsinC.1andC.2. 4.4.9 Sealingelements 4.4.9.1 Nonreinforcedelastomersealingelements Anynonreinforcedelastomersealingelement,otherthangaskets,shallconformtothefollowing: a) eitherminimumtensilestrength10MPaandminimumultimateelongation300%;orEN122595:2002(E) 8 b) minimumtensilestrength15MPaandminimumultimateelongation200% and c)
