4 .3.1排水管材及連接方式 的選擇 Selection of Drainage Pipes and Connection Modes-1733558567585

4.3.1排水管材及連接方式的選擇SelectionofDrainagePipesandConnectionModes一、排水管材及連接方式DrainagePipesandConnectionModes排水管材的選擇應符合下列規(guī)定：Theselectionofdrainagepipesshallmeetthefollowingrequirements:1室內(nèi)生活排水管道應采用建筑排水塑料管材、柔性接口機制排水鑄鐵管及相應管件；通氣管管材宜與排水管管材一致。Indoordomesticdrainagepipesshouldadoptbuildingdrainageplasticpipes,castirondrainpipesandcorrespondingpipesofflexibleconnectionmechanism;ventpipesshallusethesamematerialsasdrainagepipes.2當連續(xù)排水溫度大于40℃時，應采用金屬排水管或耐熱塑料排水管。Whenthecontinuousdrainagetemperatureisgreaterthan40degreesCelsius,metaldrainagepipesorheat-resistantplasticdrainagepipesshallbeused.3壓力排水管道可采用耐壓塑料管、金屬管或鋼塑復合管。Pressuredrainagepipescanbepressure-resistantplasticpipes,metalpipes,orsteel-plasticcompositepipes.一、排水管材及連接方式DrainagePipesandConnectionModes不同的管材具有不同的特性，適用的范圍也不一樣Differentmaterialsforpipeshavedifferentfeaturesanddifferentapplicablescopes排水鑄鐵管Castirondrainpipe01鋼管Steelpipes02塑料管Plasticpipe03一、排水管材及連接方式DrainagePipesandConnectionModes耐腐蝕性強，有一定的強度，噪音低，阻燃防火，使用壽命長，價格便宜。Strongcorrosionresistance,acertainstrength,lownoise,flameretardant,fireproofing,longservicelife,andcheapprice.優(yōu)點Advantage性脆，自重大，每根管的長度短，管接口多，施工復雜。Itisbrittleandhasaheavyself-weight.Eachpipeisshort,withmanypipejointsandcomplicatedconstruction.缺點Disadvantage1.排水鑄鐵管Castirondrainpipe（1）特性Characteristics一、排水管材及連接方式DrainagePipesandConnectionModes接口：承插口連接。Connection:socketconnection.常用接口材料：普通水泥、石棉水泥、膨脹水泥接口。Commonconnectionmaterials:ordinarycement,asbestoscement,expandedcement.（2）連接方式Connectionmode一、排水管材及連接方式DrainagePipesandConnectionModes（3）柔性抗震機制排水鑄鐵管Castironpipesofflexibleandanti-seismicmechanism柔性抗震排水鑄鐵管，具有較好的曲撓性、伸縮性、密封性及抗震性能，且便于施工。Flexibleandanti-seismiccastirondrainpipehasgoodflexibility,stretchability,sealing,andseismicresistanceperformance,anditisconvenientforconstruction.一、排水管材及連接方式DrainagePipesandConnectionModes（3）柔性抗震機制排水鑄鐵管Castironpipesofflexibleandanti-seismicmechanism設(shè)置條件：SettingConditions:高聳構(gòu)筑物和建筑高度超過100m的建筑物，排水立管應采用柔性接口。

Forhigh-risestructuresandbuildingswithabuildingheightofmorethan100meters,flexibleconnectionsareusedonthedrainagestandpipes.排水立管在50m以上，或在抗震設(shè)防8度地區(qū)的高層建筑，應在立管上每隔二層設(shè)置柔性接口。

Whenthestandpipesaremorethan50meters,orforhigh-risebuildingsinareaswithaseismicfortificationintensityof8degrees,flexibleconnectionsshallbesetonthecastirondrainstandpipeseverytwofloors.在抗震設(shè)防9度的地區(qū)，立管和橫管均應設(shè)置柔性接口。其他建筑在條件許可時，也可采用柔性接口。

Inareaswithaseismicfortificationintensityof9degrees,flexibleconnectionsshallbeprovidedforstandpipesandtransversepipes.Flexiblejointscanalsobeusedforotherbuildingswhenconditionspermit.一、排水管材及連接方式DrainagePipesandConnectionModes（4）排水鑄鐵管管件Castirondrainpipefittings一、排水管材及連接方式DrainagePipesandConnectionModes2.鋼管Steelpipe當排水管道管徑小于50mm時，宜采用鋼管，主要用于洗臉盆、小便器、浴盆等衛(wèi)生器具與排水橫支管間的連接短管，管徑一般為32、40、50mm。Whenthediametersofdrainagepipesarelessthan50millimeters,steelpipesshallbeadoptedandtheirdiametersgenerallyare32,40,and50millimeters.Thesepipesaremainlyusedforconnectionshortpipesforconnectingdrainagetransversebranchpipesandsanitarywaressuchaswashbasins,urinals,andbathtubs.一、排水管材及連接方式DrainagePipesandConnectionModes耐腐蝕性強，質(zhì)量輕、不結(jié)垢、內(nèi)壁光滑、水流阻力小、外表美觀、容易切割、便于安裝、節(jié)省投資等。Strongcorrosionresistance,lightweight,noscaling,smoothinnerwall,smallwaterflowresistance,beautifulappearance,easycutting,convenientinstallation,andinvestmentsaving.優(yōu)點Advantage強度低，易老化、耐溫性差、噪音大、防火性能差等。Theyhavethedisadvantagesoflowstrength,easyaging,poortemperatureresistance,loudnoise,andpoorfireproofperformance.缺點Disadvantage3.塑料管Plasticpipe（1）特性Characteristics一、排水管材及連接方式DrainagePipesandConnectionModes3.塑料管Plasticpipe（1）特性Characteristics常用膠粘劑承插連接，或彈性圈承插連接。Anadhesivebell-and-spigotjointorelasticringbell-and-spigotjointisgenerallyadopted.連接方式Connectionmode一、排水管材及連接方式DrainagePipesandConnectionModes（2）適用范圍Scopeofapplication適用于建筑高度不大于100m、連續(xù)排放溫度不大于40℃、瞬時排放溫度不大于80℃的生活污水系統(tǒng)及雨水排水系統(tǒng)。

Theyaresuitableforadomesticsewagesystemandrainwaterdrainagesystemwithabuildingheightofnotmorethan100meters,acontinuousdischargetemperatureofnotmorethan40degreesCelsiusandaninstantaneousdischargetemperatureofnotmorethan80degreesCelsius.噪聲要求特別嚴格的高層建筑和地震烈度較高地區(qū)的工業(yè)與民用建筑都不宜選用塑料管材和管件。

Plasticpipesandfittingsarenotsuitableforhigh-risebuildingswithparticularlystrictnoiserequirementsandindustrialandcivilbuildingsinareaswithrelativelyhighseismicintensity.一、排水管材及連接方式DrainagePipesandConnectionModes（3）塑料排水附件Plastic