Designation:F2863−11AnAmericanNationalStandardStandardSpecificationforCentralVacuumHoseInletValveSocketDimensions1ThisstandardisissuedunderthefixeddesignationF2863;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationestablishesrequirementsandtestmethodsfordimensionsandtolerancesofcentral-vacuumhoseinletvalvesockets.1.2Allnotesandfootnotesshallbeconsideredasnon-mandatoryrequirementsofthespecification.1.3Thisspecificationdoesnotapplytoinletvalveback-up(ormounting)plates.1.4ThisstandardisapplicabletouniversalvalvesmarkedwithASTMF2863,anddoesnotlimitproprietaryvalvedesigns.1.5Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D618PracticeforConditioningPlasticsforTestingD1600TerminologyforAbbreviatedTermsRelatingtoPlas-ticsD2122TestMethodforDeterminingDimensionsofTher-moplasticPipeandFittingsD2749SymbolsforDimensionsofPlasticPipeFittingsF412TerminologyRelatingtoPlasticPipingSystems3.Terminology3.1DefinitionsareinaccordancewithTerminologyF412,abbreviationsareinaccordancewithTerminologyD1600,anddimensionsymbolsareinaccordancewithSpecificationD2749.3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1centralvacuumhoseinletvalve,n—I.D.controlledvalvesusedtoconnectvacuumhosestothecentralvacuumtubingsystems.3.2.2hosecuff,n—endconnectorofaflexiblecentralvacuumhosethatfitsinsidethesocketofacentralvacuumhoseinletvalve.3.2.3proprietaryvalve,n—val...
