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4300Catalog PipeSwivels Introduction Pipeswivelconnectionsareoneofthemosttraditionaltypesof hydraulicconnections.NPSMswiveladaptersaddversatilityto maleNPThoseandadapterconnections.Theyareespecially suitedformanufacturersandendusersthatrelyonthisversatility. Asaresult,equipmentmanufacturerscansimplifytheirhose assemblyrequirementsbyspecifyingNPSMadapters.SeeFig. AdapterPortConnection H1foranillustrationofthisproductflexibility. ParkeroffersafulllineofNPSMpipeswiveladapters.Fourteen configurationsareavailableasstandard,manyofwhichare availableinsteelandstainlesssteel.Parker'spipeswivelsare designedforusewithmaleNPT/NPTFhosefittingsandadapt- erswitha30�machinedseat. DesignandConstruction PipeswiveladaptersaremanufacturedinaccordancetoSAE J514specifications,andthusaredesignedtoworkinconjunc- NPSM/NPTUnion tionwithseveralmanufacturers'hoseandadapterproducts. Unlikemostpipethreadconnections,NPSMswiveladaptersdo Fig.H1--IllustrationoftheflexibilityoftheNPTPortandHose notsealonthethreads.NPSMswivelconnectionsincorporate Adaptersystem parallelthreads,asopposedtotapered.Sealingisaccomplished betweenthenoseoftheswivelandthematingseatoftheNPT pipethread.Thiscreatesametal-to-metalsealasshowninFig H2.Thus,amatingNPTmaleconnectormusthavethis30�seat toensurepropersealing.Afullinternal30�seatwithsurface finishrequirementsof125Raorbetterisrequired.SeeSAE J516forspecificrequirementsofthe30�seat. Construction:Shapedpipeswivelsaremanufacturedfroma hotforgedconstruction.Straightadaptersandcrimpnutsare manufacturedfromcolddrawnbarstock.AllParkerpipeswivels withmaleNPTendsincludea30�machinedseatforNPSM swivelconnections. NotallmaleNPTendshavethe30�seat.Partsthathave thisseatwillincludeanoteinthecatalog. Threads: NPTF: ANSIB1.20.1,FED-STD-H28/7 NPT: SAEJ476,ANSIB1.20.3,FED-STD-H28/8 NPSM: ANSIB1.20.1,FED-STD-H28/7 *UN/UNF: ANSIB1.1,FED-STD-H28/2(*Class2Aor2B) Fig.H2--IllustrationshowinghowNPSMswiveladaptersseal onmatingchamferinmalepipethread AssemblyandInstallation PleaserefertoSectionTfortheassemblyandinstallationin- CarbonSteel StainlessSteel structionsforPipeSwivels. 07Adapters ASTM Type ASTM Type ForgedBodies A576 1214/1215 A182 316 MaterialsSpecifications BarStockBodies A108 12L14 A479 316 Pipeswivelsaremanufacturedusingstate-of-the-artequipment andmanufacturingtechnologiestoassureconstructioninteg- CrimpSwivelNuts A108 12L14 A479 316 rity,longservicelifeandthehigheststrength&quality.These materialsareshowninTableH1. Note:Onrequest,07adapterscanbefurnishedinmaterialsotherthan thoseshownabove. Uponrequest,pipeswivelscanbefurnishedinmaterials,sizes Finish:Zincwithyellowchromate(beingchangedtozincchromium6 andconfigurationsotherthanParker'sstandardoffering. free)isusedonallstandardsteelproducts.Stainlesssteelfittingsare passivated. TableH1--StandardMaterials Dimensionsandpressuresforreferenceonly,subjecttochange. H3 ParkerHannifinCorporation TubeFittingsDivision Columbus,Ohio http://www.parker.com/tfd
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