在GB50974《消(xiao)防給水(shui)及消(xiao)火栓系(xi)統技術規范》埋地管(guan)(guan)(guan)(guan)道(dao)，當(dang)系(xi)統工(gong)(gong)(gong)作壓(ya)(ya)力(li)(li)不大(da)于1.20MPa時(shi)，宜(yi)采(cai)(cai)用(yong)球墨(mo)鑄鐵管(guan)(guan)(guan)(guan)或鋼(gang)絲網(wang)骨架塑料(liao)復(fu)合管(guan)(guan)(guan)(guan)給水(shui)管(guan)(guan)(guan)(guan)道(dao)；當(dang)系(xi)統工(gong)(gong)(gong)作壓(ya)(ya)力(li)(li)大(da)于1.20MPa小于1.60MPa時(shi)，宜(yi)采(cai)(cai)用(yong)鋼(gang)絲網(wang)骨架塑料(liao)復(fu)合管(guan)(guan)(guan)(guan)、加厚鋼(gang)管(guan)(guan)(guan)(guan)和無縫鋼(gang)管(guan)(guan)(guan)(guan)；當(dang)系(xi)統工(gong)(gong)(gong)作壓(ya)(ya)力(li)(li)大(da)于1.60MPa時(shi)，宜(yi)采(cai)(cai)用(yong)無縫鋼(gang)管(guan)(guan)(guan)(guan)。鋼(gang)管(guan)(guan)(guan)(guan)連(lian)(lian)(lian)接(jie)(jie)宜(yi)采(cai)(cai)用(yong)溝(gou)槽連(lian)(lian)(lian)接(jie)(jie)件（卡(ka)箍(gu)）和法(fa)蘭，當(dang)采(cai)(cai)用(yong)溝(gou)槽連(lian)(lian)(lian)接(jie)(jie)件連(lian)(lian)(lian)接(jie)(jie)時(shi)，公稱直(zhi)徑小于等(deng)于DN250的(de)溝(gou)槽式(shi)管(guan)(guan)(guan)(guan)接(jie)(jie)頭系(xi)統工(gong)(gong)(gong)作壓(ya)(ya)力(li)(li)不應(ying)大(da)于2.50MPa，公稱直(zhi)徑大(da)于等(deng)于DN300的(de)溝(gou)槽式(shi)管(guan)(guan)(guan)(guan)接(jie)(jie)頭系(xi)統工(gong)(gong)(gong)作壓(ya)(ya)力(li)(li)不應(ying)大(da)于1.60MPa。

  常用地下管道材料見表(biao)4-21。

  這些材料選用(yong)的設(she)計要求，也(ye)影(ying)響裝置(zhi)、罐(guan)區的布置(zhi)。