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1、ConstruetionTechniquesforUPVCPipesUPVC管道施工技术FeaturesofUPVCPipesUPVC管道特性UPVCpipeswillbeappliedinmostofthepipswithinthisproject,whosefeaturesareasfollows:一、本项目大部分管道采用UPVC材质，其应用特性表现在以下几个方面：◊Highresistancetocorrosions:UPVCisofsplendidresistancetoinorganicacid,alkali,saltundernorm
2、aldensityandtemperature,andcouldsatisfytherequirementfromcommonprocessequipmentincopingwithchemicalsandwater.耐化性佳：UPVC对一般浓度及温度下的无机酸、碱、盐有着良好的阻抗性，可满足一般工艺设备的对化学品及水处理的需求。◊Strongstructure:Underroomtemperature,themechanicalstrengthofUPVCtoagreatextentexceedsthoseofPP,PB,PE,ABSandet
3、c.andisthebestchoicefordisplacingtraditionalmetalpipes.◊结构性强：在室温状态下，UPVC的机械性强度大幅度超过PP、PB、PE、ABS等材质，是取代传统金属管的第一选择。◊Goodinsulationproperties:ThecoefficientofthermalexpansionofUPVCisaround1/300,whichissmallerthanPP,PB,PE,ABSandetc.materials,thusincreasingutilizationefficiencyand
4、alsosavingsomerelatedinsulationcosts.保温性佳：UPVC热传导系数约为镀锌钢管的1/300,亦远低于PP、PB、PE、ABS等材质，应用时可提高能源使用效率，及节省相关保温费用。◊Sufficientflexibility:UPVCcannoteasilybedamagedbyforeignforceorvibrations,likeearthquakeandmachinevibrationsetc.柔韧性够:较不易被外力或振动造成的额外应力所破坏，如地震及机台振动等。◊Smoothinternalwall:c
5、andecreasefrictionlossandchanceofbuffereffectsofthedepositsinwall,whichmaintainsystemoperationalefficiencyeffectively.内壁光滑：减少压力摩擦损失，降低内壁附着物影响流量机会，有效维持系统操作效率。◊Longtimeserviceyears:UPVCpipingsystemscansustainpressuresfor30yearsbyestimate.使用期长：UPVC管路系统可预期维持压力承载长达30年。Installation
6、sofUPVCpipingsystems二、UPVC管路系统施工安装◊Cut:straightpipescanbeeasilycutwithwheel-shapedplasticpipecutters,electricmotorsawsorspecialsawsforplasticpipes.Keepcuttingsectionsmoothandperpendiculartoaxisofthepipes,andthiscanguaranteethelargestbondingarea（strength）.切割：直管可以用轮形塑胶管切割器、电锯或齿
7、轮完好的塑料管专用锯子等简单工具轻松切割，在切割时尽量确保切割面平整且与管轴呈垂直，才可以获得最在????黏合面积（强度）。◊Burrremoval:Cleanclearoftheburrsandfilingswithfilesorchamferingtools,andmakesomechamfersforinletofhubanddecreasethechanceoferasingsolventmucilageonaccessories.去毛边:利用倒角工具或锂刀将管内外的毛边和锂屑清除干净，并施以适当倒角（参如下图）以使管口易于进入套节，并减
8、少抹去配件上溶剂粘胶的机会。Accessoriespreparation:Wipethedustandwateronpipe-fitti
