在工程(cheng)設計中，常遇(yu)到廠(chang)際管(guan)道（Pipeline between the Plants or District）的設計，不(bu)同(tong)(tong)的國內外規范(fan)，設計要求可能不(bu)同(tong)(tong)。

  在GB 50160《石油(you)化工(gong)企(qi)業設計防(fang)火規范》中(zhong)，廠際管道(dao)指(zhi)敷設在石油(you)化工(gong)企(qi)業、油(you)庫、油(you)氣(qi)碼頭等不同圍(wei)墻(qiang)界區之間且通過公共區域、長(chang)度小(xiao)于等于30km的輸油(you)輸氣(qi)管道(dao)。

  在GB/T 51359《石(shi)(shi)油(you)(you)化(hua)工(gong)(gong)廠際管(guan)道工(gong)(gong)程(cheng)技術標準》規范中，廠際管(guan)道指石(shi)(shi)油(you)(you)化(hua)工(gong)(gong)及煤化(hua)工(gong)(gong)企(qi)業、石(shi)(shi)油(you)(you)庫、石(shi)(shi)油(you)(you)化(hua)工(gong)(gong)碼頭等(deng)相互間(jian)的輸送(song)可(ke)燃氣(qi)體(ti)、液(ye)化(hua)烴和可(ke)燃液(ye)體(ti)管(guan)道（石(shi)(shi)油(you)(you)化(hua)工(gong)(gong)園區除外）。其特征是敷(fu)設(she)在石(shi)(shi)油(you)(you)化(hua)工(gong)(gong)及煤化(hua)工(gong)(gong)企(qi)業、石(shi)(shi)油(you)(you)庫、石(shi)(shi)油(you)(you)化(hua)工(gong)(gong)碼頭等(deng)圍墻(qiang)或(huo)用地邊(bian)界線之(zhi)間(jian)且通過公(gong)共區域(yu)，長度(du)小于或(huo)等(deng)于30km。

  廠際(ji)管(guan)道(dao)(dao)(dao)的(de)(de)(de)特(te)點是企業(ye)(ye)圍墻(qiang)或(huo)(huo)用地邊界(jie)線之間(jian)(jian)、通過(guo)公共區域(yu)，長度≤30km。廠際(ji)管(guan)道(dao)(dao)(dao)長度限定在(zai)30km，考慮了與長距離輸油(you)管(guan)道(dao)(dao)(dao)的(de)(de)(de)兩切斷閥間(jian)(jian)距相協調。一(yi)般(ban)情況下(xia)，長距離輸送(song)油(you)氣(qi)管(guan)道(dao)(dao)(dao)長度在(zai)50km以上(shang)，有中(zhong)間(jian)(jian)泵(beng)(beng)站(zhan)或(huo)(huo)加壓站(zhan)等特(te)征，而(er)廠際(ji)管(guan)道(dao)(dao)(dao)通常是多(duo)條管(guan)道(dao)(dao)(dao)并列(lie)敷設，無(wu)中(zhong)間(jian)(jian)泵(beng)(beng)站(zhan)或(huo)(huo)加壓站(zhan)，這一(yi)長度也基本涵蓋了目(mu)前石油(you)化(hua)工(gong)(gong)企業(ye)(ye)不(bu)同(tong)圍墻(qiang)或(huo)(huo)用地邊界(jie)之間(jian)(jian)的(de)(de)(de)油(you)氣(qi)管(guan)道(dao)(dao)(dao)長度。廠際(ji)管(guan)道(dao)(dao)(dao)不(bu)屬于(yu)地區輸油(you)（輸氣(qi)）管(guan)道(dao)(dao)(dao)，也不(bu)包括石油(you)化(hua)工(gong)(gong)園區內公用的(de)(de)(de)輸送(song)可燃(ran)氣(qi)體、液化(hua)烴和可燃(ran)液體的(de)(de)(de)管(guan)道(dao)(dao)(dao)。一(yi)般(ban)定義廠際(ji)管(guan)道(dao)(dao)(dao)為GC類。