Designation:D3311−11AnAmericanNationalStandardStandardSpecificationforDrain,Waste,andVent(DWV)PlasticFittingsPatterns1ThisstandardisissuedunderthefixeddesignationD3311;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationprovidesstandardfittinggeometriesandlayinglengthsforplasticfittingsintendedforuseindrain,waste,andventapplications.(SeeSpecificationsD2661andD2665.)1.2Fittingsmeetingtherequirementsofthisstandardspeci-ficationaredesignedforusewithoutsidediametercontrolledpipe.Theinsidediametercanvarysignificantlyasthewallthicknessandoutsidediametervariesandthereforeisnotsuitableforuseasafittingsocket.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.2.ReferencedDocuments2.1ASTMStandards:2D2661SpecificationforAcrylonitrile-Butadiene-Styrene(ABS)Schedule40PlasticDrain,Waste,andVentPipeandFittingsD2665SpecificationforPoly(VinylChloride)(PVC)PlasticDrain,Waste,andVentPipeandFittingsF1498SpecificationforTaperPipeThreads60°forThermo-plasticPipeandFittings3.Requirements3.1FittingsshallconformtothegeometriesandlayinglengthsasshowninTables1-45andFigs.1-5.Tolerancesshallbe61⁄16in.unlessotherwisespecified.3.2Spigotandhubdimensionsshallconformtotherequire-mentsofthereferencingstandard.3.3Theexactoutsideshapeofafittingisnotdeterminedbytheoutlinedrawingsshowninthisspecificationbutratherbythesocketdimensions,wallthicknessrequirements,waterway,layinglengths,andanyothercriticaldimensionsthatmaybespecified.3.4Thepitchofsocketsforpatternswith90°angles(exceptventfittings)shallbe1⁄4in./ftor1°12min.3.5Ondoublereducingsanitarytees,theG2dimensiononbrancheswillbecalculatedonthelargersizeandcenterlinesshallremainthesameforbo...
