Designation:F1298−90(Reapproved2012)AnAmericanNationalStandardStandardSpecificationforFlexible,Expansion-TypeBallJointsforMarineApplications1ThisstandardisissuedunderthefixeddesignationF1298;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversthedesign,manufacture,andtestingofballjointsutilizedforaccommodatingthermalexpansionandcontraction,ormechanicalmovementofapipelinecarryingfluid.Theballjointsareintendedforuseinsystemsoperatingabove0°F(18°C).1.2Thefollowingprecautionarycaveatpertainsonlytothetestmethodsportion,Section7,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimita-tionspriortouse.2.ReferencedDocuments2.1ASTMStandards:2A395/A395MSpecificationforFerriticDuctileIronPressure-RetainingCastingsforUseatElevatedTempera-turesF722SpecificationforWeldedJointsforShipboardPipingSystems2.2ANSIStandard:B31.1PowerPiping32.3AmericanSocietyofMechanicalEngineers:4ASMEBoilerandPressureVesselCode,SectionVIII,Division1,PressureVesselsSectionIX,WeldingandBrazingRequirements3.OrderingInformation3.1Eachpurchaseorderorinquiryforballjointstothisspecificationshallincludethefollowingasapplicable:3.1.1Title,number,andlatestrevisionofthisspecification,3.1.2Manufacturer’spartnumberorball-jointtypeinfor-mation,3.1.3Materialsforballjointandseals,ifotherthantothisspecification,3.1.4Serviceconditions,3.1.4.1Minimumandmaximumoperatingtemperature(°F),3.1.4.2Maximumoperatingpressure(psig),3.1.5Fluidmedia(internal),3.1.6Atmosphereormedia(external),3.1.7ANSIpressureclass,facinganddrillingofflangedends,andpipescheduleorwallthicknessofendsforweldendjoints,3.1.8Specialend...
