在GB50974《消(xiao)防給水及消(xiao)火栓系(xi)統技術規范》埋地(di)管(guan)道(dao)，當(dang)系(xi)統工(gong)(gong)作(zuo)(zuo)壓力(li)不大(da)于(yu)(yu)1.20MPa時(shi)(shi)，宜采用球墨鑄鐵管(guan)或(huo)鋼(gang)絲網(wang)骨(gu)架塑料復合(he)管(guan)給水管(guan)道(dao)；當(dang)系(xi)統工(gong)(gong)作(zuo)(zuo)壓力(li)大(da)于(yu)(yu)1.20MPa小于(yu)(yu)1.60MPa時(shi)(shi)，宜采用鋼(gang)絲網(wang)骨(gu)架塑料復合(he)管(guan)、加厚鋼(gang)管(guan)和(he)無(wu)縫(feng)鋼(gang)管(guan)；當(dang)系(xi)統工(gong)(gong)作(zuo)(zuo)壓力(li)大(da)于(yu)(yu)1.60MPa時(shi)(shi)，宜采用無(wu)縫(feng)鋼(gang)管(guan)。鋼(gang)管(guan)連接宜采用溝槽(cao)連接件（卡箍(gu)）和(he)法蘭，當(dang)采用溝槽(cao)連接件連接時(shi)(shi)，公(gong)稱直徑(jing)小于(yu)(yu)等(deng)于(yu)(yu)DN250的溝槽(cao)式(shi)管(guan)接頭(tou)系(xi)統工(gong)(gong)作(zuo)(zuo)壓力(li)不應大(da)于(yu)(yu)2.50MPa，公(gong)稱直徑(jing)大(da)于(yu)(yu)等(deng)于(yu)(yu)DN300的溝槽(cao)式(shi)管(guan)接頭(tou)系(xi)統工(gong)(gong)作(zuo)(zuo)壓力(li)不應大(da)于(yu)(yu)1.60MPa。

  常用(yong)地下管(guan)道(dao)材料見表(biao)4-21。

  這些材料選用的(de)設計(ji)要(yao)求，也影響裝置(zhi)、罐區的(de)布置(zhi)。