玻璃鋼雙層保溫管道的保(bao)(bao)溫(wen)(wen)(wen)材料(liao)為非常細細玻璃(li)(li)棉管(guan)(guan)殼。很細的玻璃(li)(li)棉管(guan)(guan)殼具(ju)有(you)雙層(ceng)(ceng)錯縫包扎(zha)、接縫少，透氣性好的優(you)點，一旦保(bao)(bao)溫(wen)(wen)(wen)層(ceng)(ceng)在施工過(guo)程(cheng)中進水，完全可以通過(guo)逐(zhu)步提高蒸氣溫(wen)(wen)(wen)度(du)進行抽氣排潮、逐(zhu)步烘干。烘干后(hou)形狀和保(bao)(bao)溫(wen)(wen)(wen)性能保(bao)(bao)持良好。滾動支持結構(gou)設計合(he)理，滾動摩擦(ca)力(li)小(xiao)，固(gu)定支座受(shou)力(li)減(jian)小(xiao)，其(qi)力(li)學分析原(yuan)理簡單(dan)，管(guan)(guan)道穩定性、性得到較大提高。真空(kong)(kong)層(ceng)(ceng)徹底杜(du)絕(jue)了空(kong)(kong)氣層(ceng)(ceng)存在的熱(re)傳(chuan)導和熱(re)對(dui)(dui)流、極大地降低了熱(re)損失(shi)。與空(kong)(kong)氣層(ceng)(ceng)結構(gou)相比(bi)，在同(tong)等保(bao)(bao)溫(wen)(wen)(wen)厚度(du)下(xia)可降低外壁(bi)溫(wen)(wen)(wen)度(du)8-13℃。一般情況下(xia)，玻璃(li)(li)鋼雙層(ceng)(ceng)保(bao)(bao)溫(wen)(wen)(wen)管(guan)(guan)道內(nei)管(guan)(guan)直(zhi)(zhi)徑(jing)為DN25-3000mm，標準長(chang)度(du)為6-12m/條。外管(guan)(guan)直(zhi)(zhi)徑(jing)則(ze)是(shi)針對(dui)(dui)用戶要求設計保(bao)(bao)溫(wen)(wen)(wen)層(ceng)(ceng)厚度(du)，確定外管(guan)(guan)直(zhi)(zhi)徑(jing)。