新型PVC管(PVC-O)與球墨鑄鐵管施工比較
PVC-O管材密度約為1.35，不足鑄鐵管的1/5。在實際工程中，選用PVC-O管(guan)(guan)(guan)材(cai)基本不需要機械設備，依靠人工即可完(wan)成管(guan)(guan)(guan)材(cai)的(de)(de)二次運(yun)輸、安裝;而(er)球(qiu)墨(mo)(mo)鑄(zhu)(zhu)鐵管(guan)(guan)(guan)由于重(zhong)量(liang)大，沒有(you)機械設備很難完(wan)成管(guan)(guan)(guan)材(cai)的(de)(de)二次運(yun)輸、施工。例如dn450mm PVC-O管(guan)(guan)(guan)材(cai)，每根6米(mi)重(zhong)量(liang)約(yue)153公(gong)(gong)(gong)斤(jin)，同規(gui)格的(de)(de)DN450球(qiu)墨(mo)(mo)鑄(zhu)(zhu)鐵管(guan)(guan)(guan)每根6米(mi)約(yue)為575公(gong)(gong)(gong)斤(jin);dn500mm pvc-o管(guan)(guan)(guan)材(cai)每根6米(mi)重(zhong)量(liang)約(yue)188公(gong)(gong)(gong)斤(jin)，而(er)同規(gui)格的(de)(de)DN500球(qiu)墨(mo)(mo)鑄(zhu)(zhu)鐵管(guan)(guan)(guan)每根6米(mi)約(yue)為669公(gong)(gong)(gong)斤(jin)。球(qiu)墨(mo)(mo)鑄(zhu)(zhu)鐵管(guan)(guan)(guan)道(dao)施工必(bi)須要在機械輔助之下(xia)才(cai)能施工。在地形復雜地區及交通(tong)不便區域PVC-O管(guan)(guan)(guan)材(cai)重(zhong)量(liang)輕的(de)(de)優勢更加明(ming)顯。與球(qiu)墨(mo)(mo)鑄(zhu)(zhu)鐵管(guan)(guan)(guan)道(dao)相比，PVC-O管(guan)(guan)(guan)材(cai)施工費用約(yue)為球(qiu)墨(mo)(mo)鑄(zhu)(zhu)鐵管(guan)(guan)(guan)的(de)(de)30%，而(er)且工程(cheng)的(de)(de)施工進度易(yi)于控制。