BS EN 558-1 1996

BRITISHSTANDARDBSEN558-1:1996Industrialvalves—Face-to-faceandcentre-to-facedimensionsofmetalvalvesforuseinflangedpipesystems—Part1:PN-designatedvalvesTheEuropeanStandardEN558-1:1995hasthestatusofaBritishStandardICS23.060.00LicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,MonJul2310:25:57GMT+00:002007,UncontrolledCopy,(c)BSIBSEN558-1:1996ThisBritishStandard,havingbeenpreparedunderthedirectionoftheEngineeringSectorBoard,waspublishedundertheauthorityoftheStandardsBoardandcomesintoeffecton15May1996©BSI03-1999ThefollowingBSIreferencesrelatetotheworkonthisstandard:CommitteereferencePSE/7Draftforcomment91/81548DCISBN0580247104CommitteesresponsibleforthisBritishStandardThepreparationofthisBritishStandardwasentrustedtoTechnicalCommitteePSE/7,Valves,uponwhichthefollowingbodieswererepresented:AmalgamatedEngineeringUnionAssociationofBronzeandBrassFoundersBritishFoundryAssociationBritishGasplcBritishPlumbingFittingsManufacturers’AssociationBritishValveandActuatorManufacturers’AssociationBritishWaterCharteredInstitutionofBuildingServicesEngineersElectricityAssociationEnergyIndustriesCouncilEngineeringEquipmentandMaterialsUsers’AssociationGAMBICA(BEAMA)Ltd.HealthandSafetyExecutiveInstitutionofMechanicalEngineersLPGasAssociationPipelineIndustriesGuildSocietyofBritishWaterIndustriesWaterServicesAssociationofEnglandandWalesWestMidlandsCBICooptedmembersAmendmentsissuedsincepublicationAmd.No.DateCommentsLicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,MonJul2310:25:57GMT+00:002007,UncontrolledCopy,(c)BSIBSEN558-1:1996©BSI03-1999iContentsPageCommitteesresponsibleInsidefrontcoverNationalforewordiiForeword2TextofEN558-13ListofreferencesInsidebackcoverLicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,MonJul2310:25:57GMT+00:002007,UncontrolledCopy,(c)BSIBSEN558-1:1996ii©BSI03-1999NationalforewordThisBritishStandardhasbeenpreparedbyTechnicalCommitteePSE/7andistheEnglishlanguageversionofEN558-1:1995Industrialvalves—Face-to-faceandcentre-to-facedimensionsofmetalvalvesforuseinflangedpipesystems—Part1:PN-designatedvalves,publishedbytheEuropeanCommitteeforStandardization(CEN).EN558-1wasproducedastheresultofinternationaldiscussionsinwhichtheUnitedKingdomtookanactivepart.TogetherwithBSEN558-2:1996,itpartiallysupersedesBS2080:1989,whichhasbeenamended.ABritishStandarddoesnotpurporttoincludeallthenecessaryprovisionsofacontract.UsersofBritishStandardsareresponsiblefortheircorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.Cross-referencePublicationreferredtoCorrespondingBritishStandardEN26554:1991BSEN26554:1991Specificationforface-to-facedimensionsforflangedautomaticsteamtrapsSummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,pagesiandii,theENtitlepage,pages2to22,aninsidebackcoverandabackcover.Thisstandardhasbeenupdated(seecopyrightdate)andmayhavehadamendmentsincorporated.Thiswillbeindicatedintheamendmenttableontheinsidefrontcover.LicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,MonJul2310:25:57GMT+00:002007,UncontrolledCopy,(c)BSIEUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN558-1October1995ICS23.060.00Descriptors:Industrialvalves,valves-andfittings,cocks,flangedvalves,metallurgicalproducts,dimensions,generalitiesEnglishversionIndustrialvalves—Face-to-faceandcentre-to-facedimensionsofmetalvalvesforuseinflangedpipesystemsPart1:PN-designatedvalvesRobinetterieindustrielle—Dimensionsface-à-faceetface-à-axedelarobinetteriemétalliqueutiliséedanslessystèmesdecanalisationsàbrides—Partie1:ApparielsderobinetteriedésignésPNIndustriearmaturen—BaulängenvonArmaturenausMetallzumEinbauinRohrleitungenmitFlanschen—Teil1:NachPNbezeichneteArmaturenThisEuropeanStandardwasapprovedbyCENon1995-10-16.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom.CENEuropeanCommitteeforStandardizationComitéEuropéendeNormalisationEuropäischesKomiteefürNormungCentralSecretariat:ruedeStassart36,B-1050Brussels©1995AllrightsofreproductionandcommunicationinanyformandbyanymeansreservedinallcountriestoCENanditsmembersRef.No.EN558-1:1995ELicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,MonJul2310:25:57GMT+00:002007,UncontrolledCopy,(c)BSIEN558-1:1995©BSI03-19992ForewordThisEuropeanStandardwaspreparedbyTechnicalCommitteeCEN/TC69,Industrialvalves,thesecretariatofwhichi