1、BRITISH STANDARD BS EN 13997:2003 Irrigation techniques Connection and control accessories for use in irrigation systems Technical characteristics and testing The European Standard EN 13997:2003 has the status of a British Standard ICS 65.060.35 BS EN 13997:2003 This British Standard, was published
2、under the authority of the Standards Policy and Strategy Committee on 20 November 2003 BSI 20 November 2003 ISBN 0 580 42959 8 National foreword This British Standard is the official English language version of EN 13997:2003. The UK participation in its preparation was entrusted to Technical Committ
3、ee AGE/30, Irrigation and drainage equipment, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document
4、 may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using 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. Use
5、rs are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change
6、 and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 20, an inside back cover and a back cover. The BSI copyright notic
7、e displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN13997 November2003 ICS65.060.35 Englishversion IrrigationtechniquesConnectionandcontrolaccessoriesfor useinirrigationsy
8、stemsTechnicalcharacteristicsandtesting TechniquesdirrigationAccessoiresderaccordetde commandepourusagedanslessystmesdirrigation Caractristiquestechniquesetessais BewsserungsverfahrenVerbindungsundSteuerzubehr frdenEinsatzinBewsserungssystemenTechnische EigenschaftenundPrfung ThisEuropeanStandardwas
9、approvedbyCENon19September2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicati
10、ontotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethe
11、nationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOM
12、ITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN13997:2003EEN13997:2003(E) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Technicalcharacterist
13、icsandrequirements .5 4.1 Materialandmethodofproductionoftheparts .5 4.2 Corrosionresistanceandprotectionagainstcorrosion . 5 4.2.1 General5 4.2.2 Steelparts. 6 4.2.3 Partsmadeofbrass. 6 4.2.4 PartsmadeofAluminiumalloy . .6 4.2.5 PartsmadeofPolypropylene(PP)orPolyvinylchloride(PVC) 6 4.3 Dimensions.
14、6 4.3.1 General6 4.3.2 Length .6 4.3.3 Width .7 4.3.4 Height7 4.3.5 Diameter7 4.4 Smoothnessofsurface . 7 4.5 Coupling7 4.6 Replacementofpartswithsphericalcouplingsinaplant 8 4.7 Allowableoperatingpressure(nominalpressure). 8 4.8 Pressureloss. .8 5 Marking .8 6 Testing 9 6.1 Constructionandoperating
15、tests 9 6.1.1 Samplingandtestforms . 9 6.1.2 Testprocedure .9 6.1.3 Testequipment 10 6.1.4 Testconditions . .10 6.2 Carryingoutoftest 10 6.2.1 General10 6.2.2 Dimensions.11 6.2.3 Wallthickness(withoutcorrosionprotection) . 11 6.2.4 Totallengthofpart 11 6.2.5 Nominallengthofpart .11 6.2.6 Bendingangl
16、e . .11 6.2.7 Replacement.11 6.2.8 Pressureloss. .11 6.2.9 Behaviourundernominalpressure .11 6.2.10 Installationoflinetobetested .13 6.2.11 Supportingofemptypart. .13 6.2.12 Bendingtest . 14 6.2.13 Bulgingtest . .14 6.2.14 Effectsofbulgingtest .14 AnnexA (informative) Applicationfortestofconnectiona
17、ndcontrolaccessoriesaccordingtoEN 13997Form1 . 15 AnnexB (informative) Resultsoftestofconnectionandcontrolaccessoriescarriedoutaccordingto EN13997Form2 .17 Bibliography 20EN13997:2003(E) 3 Foreword Thisdocument(EN13997:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC334“Irrigationtechniques”, thesecre
18、tariatofwhichisheldbyAENOR. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyMay2004,andconflictingnationalstandardsshallbewithdrawnatthelatestby May2004. AnnexesAandBareinformative. AccordingtotheCEN/CENELECInternalRegula
19、tions,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom
20、EN13997:2003(E) 4 1Scope Thisstandarddescribesthetechnicalcharacteristicsandrequirementsofhydraulicconnectionandcontrol accessoriestoensureasufficientmechanicalresistanceforpracticaluse,andspecifiestherelevanttesting methods.Itappliestoaccessoriesmadeofsteel,brass,aluminium,Polypropylene,Polyethyle
21、neorPVCforusein irrigationsystemsuptoadiameterof250mm. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequenta
22、mendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN10240, Internaland/orexternalprotectivecoatingsforsteeltubesSpecificationforhotdipgal
23、vanizedcoatings appliedinautomaticplants. ISO2091, WroughtaluminiumandaluminiumalloysChemicalcompositionandformsofproductsPart1: Chemicalcomposition . ISO2092, WroughtaluminiumandaluminiumalloysChemicalcompositionandformsofproductsPart2: Formsofproducts . ISO3522, CastaluminiumalloysChemicalcomposit
24、ionandmechanicalproperties . ISO11678, AgriculturalirrigationequipmentAluminiumirrigationtubes . 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply. 3.1 connectionaccessoryforirrigation portabledevicewithcouplingparts(suchasthreads,flangesorquickcouplings
25、)whichgiveasafeconnectionwith otherpartsorwithapipewithcouplingsofthesamekind 3.2 quickcouplingaccessory connectionaccessorywhichallowsaconnectioninafewsecondsmostlywithoutatoolandwhichcanbeloosened inthesameeasyway 3.3 mouldedpart moulded,weldedorformedpartsforconnectionofpartsofanirrigationplantla
26、iddowninstraightormodified directionwithsameordifferentparameterssuchasbends,valves(i.e.inlinegatevalves),onlinehydrants,opening elbow,pumpconnectionbow,Tpieces,reducedcross,diameterreductionparts,threadpieces,stabilizers,risers, endplugs(maleandfemale).SeeFigure1.EN13997:2003(E) 5 a)elbow b)Tpiece
27、c)diameterreduction d)riser Figure1Examplesforconnectionaccessories(symbols) 3.4 controlaccessory partswhichinfluencethewaterpressureandthedirectionoffloworgivedataforinfluenceinanirrigationplant suchasflowmeters,pressuregauges,filters,valves(i.e.inlinegatevalves),onlinehydrants,pressurereduction va
28、lves,shotvalves,controlunits,nonreturnvalves,airescapevalves,emptyingvalves.SeeFigure2. a)Controlunit b)filter c)flowmeter d)pressuregauge e)pressurereductionvalve f)nonreturnvalve g)shotvalve Figure2Examplesforcontrolaccessories(symbols) 4 Technicalcharacteristicsandrequirements 4.1Materialandmetho
29、dofproductionoftheparts ThemethodsofproductiondependingonthematerialsarelistedinTable1. Table1Materialsandmethodsofproduction Material Methodofproduction Steel Weldedormoulded Brass Weldedormoulded Aluminiumalloy Weldedormoulded Polypropylene(PP) Extruded Polyethylene(PE) Extruded Polyvinylchloride(
30、PVC) Extruded 4.2Corrosionresistanceandprotectionagainstcorrosion 4.2.1General Connectionandcontrolaccessoriesshallbecorrosionresistantagainsttheapplication.EN13997:2003(E) 6 4.2.2 Steelparts PartsmadeofsteelplatehavetobehotdipzincgalvanizedaccordingtoEN10240. Partsmadeofmouldedsteelhavetobegalvaniz
31、edorcoveredwithananticorrosioncolour. 4.2.3 Partsmadeofbrass Partsmadeofbrassareresistantagainstirrigationwaterwithoutabrasiveandorchemicalcomponents.Theuse withsolutionsoffertilizerandoragentsforplantprotectionshallbegrantedbythemanufacturer. 4.2.4 PartsmadeofAluminiumalloy PartsmadeofAluminiumallo
32、yshallmeettherequirementsfortubesgiveninISO2091,ISO2092,ISO3522and ISO11678. 4.2.5 PartsmadeofPolypropylene(PP)orPolyvinylchloride(PVC) Nospecificrequirements(partsmadeofsuchmaterialareresistantagainstthechemicalinfluenceofsoiland water). 4.3Dimensions 4.3.1General Iffittedwithquickcouplingsitistodi
33、stinguishbetweenthenominallength(l N )andtheoveralllength(l O )of accessories.Thedimensionsofelbowsaretobedeterminedalongandattheendofthecentreline. 4.3.2Length 4.3.2.1 Nominallength Thenominallengthofapartisdeclaredbythemanufacturerandismeasuredafterconnectionoftwoidentical partsasthedistancebetwee
34、ntwosimilarpointsonbothparts.(Themeasurementshouldbecarriedoutunder nominalpressureat(20 5)C.Deviationof0%to0,4%isallowable.SeeFigure3). 4.3.2.2 Overalllength Theoveralllengthofapartfittedwithfittingsorquickcouplingsisthetotallengthofapartincludingcouplingparts. SeeFigure3.EN13997:2003(E) 7 Key l N
35、nominallength l O overalllength Figure3Nominalandoveralllengthofpartsfittedwithquickcouplings 4.3.3Width Thewidthistobedeterminedinthesamewayasdescribedin4.3.2. 4.3.4Height Theheightistobedeterminedinthesamewayasdescribedin4.3.2. 4.3.5Diameter Thediameteristobedeterminedwithoutcouplingparts.Thediame
36、terofcouplingpartsistodetermined separately. Itistodistinguishbetweeninnerdiameter(d I ),outsidediameter(d o )ornominaldiameter(d N ). 4.4Smoothnessofsurface Theinnersideofthewallofconnectionandcontrolaccessoriesshallbesmooth;weldingresidueandflashesare allowedtoprotrudenotmorethan2mm.Theprotectivec
37、oatingonsteelpipesshallhaveanadhesionstrong enoughtopreventpeelingduetohitscausedduringtransportationorgeneraluse.Theadhesionofthecoating shouldalsoavoidhairlinecrackscausedbythetestpressure. 4.5Coupling Threekindsofcouplingsareusuallyused: SphericalcouplingwithOringseal. Closedmechanically; Couplin
38、gwithliptypeseal. Closedmechanically; Couplingwithliptypeseal. Closedbywaterpressure. Forspecialapplicationliptypecouplingsmayberequiredtobelooseatpressuresbelow50kPabyagreement.EN13997:2003(E) 8 Themaximumbendingangleofadjacentelementsindegreesshallbedeclaredbythemanufacturerinhis documentation.The
39、couplingmustbewatertightiffilledwithwaterundernominalpressure.Ifquickcoupling pipelinesareusedassuctionlinethecouplingsmustbewaterandairtight.Thecouplingsmustwithstandopening andclosingfor2000times. 4.6Replacementofpartswithsphericalcouplingsinaplant Thereplacementofonepartinthemiddleofapipelinewith
40、100mlengthshallbepossiblewithoutmovingthe wholepipelineinlongitudinaldirection. 4.7Allowableoperatingpressure(nominalpressure) Thenominalpressureofpartsisdeclaredbythemanufacturer.Theoperatingpressureinaccessoriesshallnot exceedthenominalpressureofthoseparts.Theselectionofaccessoriesshallbemadetakin
41、gintoaccount possiblepressureshocks(waterhammer). 4.8Pressureloss Themanufacturershalldeclaretheheadlossatnominalpressureoratnominalflowrate.Iftheheadlossistobe determinedwithoutastandardizedtestmethodexistingtheusedtestmethodmustbedescribedverycarefullyto enablefurthermeasurementundercomparablecond
42、itions. 5Marking Connectionandcontrolaccessoriesaccordingtothisstandardmaybemarkedwiththenameorthesignofthe producerinconnectionwithlength,diameterandnominalpressureasshowninFigure4. Key l N nominallength:600mm DN nominaldiameter:110mm PN nominalpressure:1,0MPa Figure4MarkingofanaccessorypartEN13997
43、2003(E) 9 6Testing 6.1Constructionandoperatingtests 6.1.1 Samplingandtestforms Fortestsofconnectionandcontrolaccessoriestheforms1and2aretobeused(seeannexAandannexB). Theseformshavetobefilledoutinduplicate.Thetestconnection,controlaccessoriesanddocumentsaccording toTable2arenecessary. Table2Listofpartsrequiredfortesting No Connectionandcontrolaccessoriesdocuments Quantity 1 Completequickcouplingpipeswithsealingelements(nottobetested) Minimum100m 2 Fittings 2each 3 Bends90,45,30;risers 2each 4 Tpieces,reducedcrosses,diameterreductionparts 2each 5 Openin
