預yu製zhi鋼gang套tao鋼gang直zhi埋mai保bao溫wen管guan是shi地di下xia直zhi埋mai管guan道dao中zhong的de一yi種zhong，采cai用yong沒mei有you混hun凝ning土tu結jie構gou的de情qing況kuang下xia也ye可ke以yi進jin行xing地di下xia直zhi埋mai的de方fang式shi，即ji工gong作zuo鋼gang管guan的de熱re膨peng脹zhang在zai外wai管guan內nei進jin行xing，從cong而er降jiang低di了le材cai料liao成cheng本ben，縮suo短duan了le施shi工gong日ri期qi，並bing保bao障zhang了le供gong熱re管guan道dao的de安an全quan性xing，可ke以yi在zai不bu同tong溫wen度du環huan境jing下xia更geng安an全quan的de廣guang泛fan應ying用yong，尤you其qi適shi用yong於yu高gao溫wen蒸zheng汽qi管guan道dao項xiang目mu。使shi用yong溫wen度du可ke達da150℃-450℃。管道端口一般選用聚乙烯薄膜或三層PE冷纏帶密封，防止安裝前或施工中進入潮氣或水。
保(bao)溫(wen)材(cai)料(liao)多(duo)層(ceng)錯(cuo)縫(feng)包(bao)紮(zha)，有(you)效(xiao)減(jian)少(shao)了(le)熱(re)損(sun)失(shi)，同(tong)時(shi)在(zai)外(wai)套(tao)表(biao)麵(mian)采(cai)取(qu)控(kong)製(zhi)措(cuo)施(shi)，防(fang)止(zhi)冷(leng)橋(qiao)的(de)產(chan)生(sheng)，從(cong)而(er)使(shi)外(wai)套(tao)防(fang)腐(fu)層(ceng)的(de)溫(wen)度(du)控(kong)製(zhi)得(de)到(dao)了(le)保(bao)證(zheng)。用(yong)保(bao)溫(wen)材(cai)料(liao)包(bao)紮(zha)多(duo)層(ceng)鋁(lv)箔(bo)反(fan)射(she)層(ceng)，有(you)效(xiao)減(jian)少(shao)了(le)熱(re)損(sun)失(shi)，使(shi)蒸(zheng)汽(qi)管(guan)道(dao)更(geng)加(jia)經(jing)濟(ji)合(he)理(li)。疏(shu)水(shui)係(xi)統(tong)采(cai)用(yong)全(quan)封(feng)閉(bi)的(de)形(xing)式(shi)，布(bu)置(zhi)靈(ling)活(huo)，結(jie)構(gou)合(he)理(li)，安(an)全(quan)可(ke)靠(kao)。鋼(gang)套(tao)管(guan)上(shang)的(de)排(pai)潮(chao)管(guan)既(ji)能(neng)及(ji)時(shi)排(pai)出(chu)潮(chao)濕(shi)氣(qi)體(ti)，又(you)可(ke)作(zuo)為(wei)日(ri)常(chang)運(yun)行(xing)的(de)報(bao)警(jing)信(xin)號(hao)管(guan)。管(guan)道(dao)的(de)熱(re)補(bu)償(chang)采(cai)用(yong)優(you)質(zhi)波(bo)紋(wen)管(guan)補(bu)償(chang)器(qi)，並(bing)將(jiang)其(qi)裝(zhuang)設(she)在(zai)套(tao)管(guan)內(nei)，做(zuo)成(cheng)直(zhi)埋(mai)形(xing)式(shi)，無(wu)須(xu)設(she)置(zhi)觀(guan)察(cha)井(jing)，施(shi)工(gong)操(cao)作(zuo)方(fang)便(bian)、工期短。適用於輸送2.5MPa、350攝氏度以下的蒸汽或其它介質，該產品用鋼管做外防護層，具有強度高，不易損壞，施工檢修簡便，使用壽命長的優點。
