污(wu)水處理用(yong)3PE普通級防(fang)(fang)腐(fu)螺旋(xuan)鋼管(guan)外(wai)壁采用(yong)3PE防(fang)(fang)腐(fu)，內壁采用(yong)水泥(ni)砂(sha)漿防(fang)(fang)腐(fu)。

3PE防(fang)(fang)腐(fu)鋼管(guan)(guan)(guan)的(de)(de)(de)應用(yong)(yong)(yong)范圍如(ru)下(xia):污水(shui)(shui)(shui)(shui)處(chu)理(li)(li)：污水(shui)(shui)(shui)(shui)處(chu)理(li)(li)排(pai)放(fang)管(guan)(guan)(guan)、污水(shui)(shui)(shui)(shui)管(guan)(guan)(guan)以及生物池防(fang)(fang)腐(fu)工程(cheng)農業(ye)：農業(ye)灌(guan)溉(gai)用(yong)(yong)(yong)管(guan)(guan)(guan)、深井(jing)管(guan)(guan)(guan)、排(pai)水(shui)(shui)(shui)(shui)管(guan)(guan)(guan)等網路(lu)(lu)煤(mei)礦(kuang)：適用(yong)(yong)(yong)于煤(mei)礦(kuang)井(jing)下(xia)供(gong)排(pai)水(shui)(shui)(shui)(shui)、井(jing)下(xia)噴(pen)漿、正負壓(ya)通風、抽(chou)放(fang)瓦斯(si)、消防(fang)(fang)灑(sa)水(shui)(shui)(shui)(shui)等管(guan)(guan)(guan)網。電廠(chang)：熱(re)電廠(chang)工藝用(yong)(yong)(yong)水(shui)(shui)(shui)(shui)廢(fei)渣、回水(shui)(shui)(shui)(shui)輸(shu)(shu)送管(guan)(guan)(guan)道。消防(fang)(fang)：對于防(fang)(fang)噴(pen)淋、灑(sa)水(shui)(shui)(shui)(shui)系(xi)統的(de)(de)(de)給水(shui)(shui)(shui)(shui)管(guan)(guan)(guan)路(lu)(lu)具(ju)有(you)卓越的(de)(de)(de)適用(yong)(yong)(yong)性。高(gao)速(su)公(gong)路(lu)(lu)：電力、通訊、高(gao)速(su)公(gong)路(lu)(lu)等電纜保護套管(guan)(guan)(guan)。市政工程(cheng)：適用(yong)(yong)(yong)高(gao)層建(jian)筑(zhu)給水(shui)(shui)(shui)(shui)、熱(re)網供(gong)熱(re)、自來水(shui)(shui)(shui)(shui)工程(cheng)、燃(ran)氣輸(shu)(shu)送、埋地輸(shu)(shu)水(shui)(shui)(shui)(shui)等管(guan)(guan)(guan)道。從實際使用(yong)(yong)(yong)情(qing)況來看，如(ru)果管(guan)(guan)(guan)道內(nei)通常(chang)是(shi)常(chang)溫(wen)水(shui)(shui)(shui)(shui)并且(qie)是(shi)滿水(shui)(shui)(shui)(shui)狀(zhuang)態的(de)(de)(de)話，焊(han)口內(nei)側(ce)腐(fu)蝕情(qing)況通常(chang)不怎么嚴(yan)重。但如(ru)果斷水(shui)(shui)(shui)(shui)或供(gong)熱(re)水(shui)(shui)(shui)(shui)，腐(fu)蝕程(cheng)度(du)還(huan)是(shi)比(bi)較(jiao)嚴(yan)重的(de)(de)(de)。