Designation:F1794−97(Reapproved2010)AnAmericanNationalStandardStandardSpecificationforHand-Operated,Globe-StyleValvesforGas(ExceptOxygenGas)andHydraulicSystems1ThisstandardisissuedunderthefixeddesignationF1794;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversthedesign,construction,testing,andoperatingrequirementsforhand-operated,quick-changecartridgetrim,in-linebodyandangle-body,globe-stylevalvesforuseingas(exceptoxygengas)andhydraulicsystems.Thesevalvesmaybeusedforon-off,and/orthrottlingapplications.1.2Thevaluesstatedinthisspecificationininch-poundunitsaretoberegardedasthestandard.TheSIequivalentsshowninparenthesisareprovidedforinformationonly.2.ReferencedDocuments2.1ASTMStandards:2F992SpecificationforValveLabelPlates2.2AmericanNationalStandardsInstitute(ANSI):3ANSIB1.1UnifiedScrewThreads(UNandUNRThreadForm)ANSIB1.20.1PipeThreads,GeneralPurpose(Inch)ANSIB16.11ForgedSteelFittings,Socket-WeldingandThreadedANSIB16.25ButtweldingEndsANSIB16.34Valves—Flanged,Threaded,andWeldedEnd2.3MilitaryStandardsandSpecifications:4MIL-STD-167-1MechanicalVibrationsofShipboardEquipment(TypeI—EnvironmentalandTypeII—InternallyExcited)MIL-STD-740-1AirborneNoiseMeasurementsandAccep-tanceCriteriaofShipboardEquipmentMIL-S-901ShockTests,H.I.(High-Impact);ShipboardMachinery,EquipmentandSystems,RequirementsforMIL-F-1183Fittings,Pipe,CastBronze,Silver-Brazing,GeneralSpecificationfor2.4GovernmentDrawings:NavalSeaSystemsCommand(NAVSEA):NAVSEA803-1385884Unions,FittingsandAdaptersButtandSocketWelding6000PSI,WOG,NPSNAVSEA803-1385943Unions,SilverBrazing3000PSI,WOG,NPS,forUTInspectionNAVSEA803-1385946Unions,BronzeSilverBrazing,WOGforUTInspection3.Terminology3.1Definitions:3.1.1bubble-tight—novisibleleakageovera3-minperiodusingeitherwatersubmersionortheapplica...
