gmw-15024-2008

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1、WORLDWIDEMaterialSpecificationENGINEERINGGMW15024ElastomersSTANDARDSEngineCoolantHose1.1MaterialDescription.Materialscoveredby1Scopethisspecificationaredividedintothefollowingtypes:Thisspecificationcoversthematerialrequirementsofethylene-propylene-diene(EPDM)engine1.1.1TypeA:EPDMcoolanthose,sulph

2、urcuredcoolanthose,bothlargediameter(radiatorhose)utilizingrayonreinforcement,capableofoperatingandsmalldiameter(heaterhose).Inaddition,thistoamaximumcontinuoustemperaturelimitofspecificationcoversthematerialrequirementsfor+120°C.enginecoolanthosewhichisincorporatedinto1.1.2TypeB:EPDMcoolanthose,

3、sulphurcuredcrimpedmetalpipeandhoseassemblies,orwhichutilizingrayonoraramidreinforcement,capableofisincorporatedintomoldedbranchedhoseoperatingtoamaximumcontinuoustemperatureassemblies.Theperformancerequirementsforlimitof+100°Candpeaktemperaturesof+125°C.enginecoolanthoseandassembliesincorporatin

4、gTypeBhosesarenotsuitableforapplicationsenginecoolanthosearedefinedbyadditionalinvolvingdirectcontactwithmetalfittings.performancespecifications.1.1.3TypeC:EPDMcoolanthose,sulphurcuredTheseenginecoolanthosesorassembliesutilizingaramidreinforcement,capableofoperatingincorporatingthesecoolanthosesa

5、reintendedtotoamaximumcontinuoustemperaturelimitofwithstandtheeffectsofcirculatingsolutions+130°C.containingcorrosioninhibitorsandglycolsand1.1.4TypeD:EPDMcoolanthose,sulphurcuredoperatingundervariouspressureconditionsatutilizingaramidreinforcement,capableofoperatingcontinuousoperatingtemperature

6、sfrom-40°Ctotoamaximumcontinuoustemperaturelimitofmaximumtemperaturesrangingfrom120to+130°C,andformulatedtocontain0wt%thiuram,150°C,dependentontype.andamaximumof0.04wt%thiocarbamatesintheThetubeandcoverstocksofthesehosesshallbeEPDMrubberstockforbothhosetubeandcover.madefromethylene-propylene-dien

7、ecompounded1.1.5TypeE:EPDMcoolanthose,peroxidecuredandreinforcedwithappropriateyarn(asdescribedutilizingaramidreinforcement,capableofoperatingin1.1)tomeettherequirementsofthistoamaximumcontinuoustemperaturelimitofspeci