配管設計管道器材選用的特點
管(guan)(guan)道(dao)器材(cai)是管(guan)(guan)道(dao)（配管(guan)(guan)）設計基礎，它直接影(ying)響管(guan)(guan)道(dao)系統乃至整(zheng)個工(gong)程(cheng)裝(zhuang)置的(de)(de)質量、安(an)全和經濟性。管(guan)(guan)道(dao)器材(cai)在石油、化工(gong)、輕工(gong)、食品、制藥、冶金、電力等工(gong)程(cheng)裝(zhuang)置中(zhong)(zhong)成本(ben)占(zhan)(zhan)比較大，管(guan)(guan)道(dao)器材(cai)的(de)(de)費(fei)用(yong)約占(zhan)(zhan)整(zheng)個EPC總(zong)承包工(gong)程(cheng)總(zong)投資的(de)(de)20％（其中(zhong)(zhong)，管(guan)(guan)件費(fei)用(yong)約占(zhan)(zhan)7.5％，閥門費(fei)用(yong)約占(zhan)(zhan)53％，...
