SpecificationforSuckerRods,PolishedRodsandLiners,Couplings,SinkerBars,PolishedRodClamps,StuffingBoxes,andPumpingTeesAPISPECIFICATION11BTWENTY-SEVENTHEDITION,MAY2010EFFECTIVEDATE:NOVEMBER1,2010ERRATA1,OCTOBER2010ERRATA2,FEBRUARY2011REAFFIRMED,JANUARY2019SpecificationforSuckerRods,PolishedRodsandLiners,Couplings,SinkerBars,PolishedRodClamps,StuffingBoxes,andPumpingTeesUpstreamSegmentAPISPECIFICATION11BTWENTY-SEVENTHEDITION,MAY2010EFFECTIVEDATE:NOVEMBER1,2010ERRATA1,OCTOBER2010ERRATA2,FEBRUARY2011REAFFIRMED,JANUARY2019SpecialNotesAPIpublicationsnecessarilyaddressproblemsofageneralnature.Withrespecttoparticularcircumstances,local,state,andfederallawsandregulationsshouldbereviewed.NeitherAPInoranyofAPI'semployees,subcontractors,consultants,committees,orotherassigneesmakeanywarrantyorrepresentation,eitherexpressorimplied,withrespecttotheaccuracy,completeness,orusefulnessoftheinformationcontainedherein,orassumeanyliabilityorresponsibilityforanyuse,ortheresultsofsuchuse,ofanyinformationorprocessdisclosedinthispublication.NeitherAPInoranyofAPI'semployees,subcontractors,consultants,orotherassigneesrepresentthatuseofthispublicationwouldnotinfringeuponprivatelyownedrights.APIpublicationsmaybeusedbyanyonedesiringtodoso.EveryefforthasbeenmadebytheInstitutetoassuretheaccuracyandreliabilityofthedatacontainedinthem;however,theInstitutemakesnorepresentation,warranty,orguaranteeinconnectionwiththispublicationandherebyexpresslydisclaimsanyliabilityorresponsibilityforlossordamageresultingfromitsuseorfortheviolationofanyauthoritieshavingjurisdictionwithwhichthispublicationmayconflict.APIpublicationsarepublishedtofacilitatethebroadavailabilityofproven,soundengineeringandoperatingpractices.Thesepublicationsarenotintendedtoobviatetheneedforapplyingsoundengineeringjudgmentregardingwhenandwherethesepublicationsshouldbeutilized.TheformulationandpublicationofAPIpublicationsisnotintendedinanywaytoinhibitanyonefromusinganyotherpractices.Anymanufacturermarkingequipmentormaterialsinconformancewi...