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1、intoWnosocketcouplingconnection,typeAflexibleflangeconnection.1)typeAflexibleflangeconnectionThesocketandmudonthesurfaceoftheflangeglandworkcleaningtoclean.Muraloutoutsidethepinpositioningline.Insetwiththesocketflangegland,rubberring,apronsedgealignmentandpositioningline.Toadvance
2、inthesocketsocketend,keeptheaxisoftheinsertedintothepipeandsocketinastraightline.Forflangeholetightenbolts,threeearsglandthreeAngleboltstotightenthemonebyone;Fourearsglandbolts,bydiagonalpositionshouldtighteninturn.2)WsocketcouplingconnectionInstallationshouldbeaccordingtotherequi
3、redlength,thestraightpipefixedandfirm,withagrindingwheelcuttingmachinedisconnect,crosssectionshouldbeverticalandsmooth,noflash,burr,lesthurtrubbersealingring.Usethescrewdrivertoloosentheclampbolt,takeouttherubberring,clampsetintothebottomline.Rubbertrapintothelowerpipeend,insertth
4、eupperpipe,rubberring,sothattwointerfacesisflatandlevelforgood.Theclampsetintotherubberring.Withscrewdriverlockclampboltssotightbeltfastenedinplace,preventexcessivetension,boltslippage.6.6thedrainagepipelineconstructionpointsforattention(1)pipelinelayinggood,willbereservednozzlemo
5、unttemporarytubewall,topreventcloggingupsundryfallintotube.(2)pipeinsideandoutsidesurfaceshouldbesmooth,nobubbles,cracks,uniformwallthickness,colourandlustreisconsistent.Verticalsectiondeflectionisnotgreaterthan1%.Pipeshouldberules,smooth,withoutburr.Socketshouldhaveapin,andformac
6、ompletesetofpins.(3)toself-inspectionofpipinginstallation,afterconfirmedfromthereserveddoclosedwatertesttubemouthwater,waterheightshouldbenotlessthantheunderlyingsanitarywareonedgeortheheightoftheunderlying,filledwithwaterfor15minutesafterthewaterdrop,5minutestofillupobservation,t
7、hesurfaceisnotfalling,theinterfaceandpipelinewithoutleakage;Buildingstormsewershouldmakewatertest,thewaterheightmustachieveeachriserupperrainwaterhead,irrigationexperimentlasted1hour,eachinterfaceandpipeisnotleak.Irrigationexperimentbytherelevantpersonneltoinspect,andfilltheconcea
8、ledengineeringacceptancerecord,co
