在工程設計中，常遇到(dao)廠際(ji)管道（Pipeline between the Plants or District）的設計，不(bu)同的國內外規范，設計要(yao)求可能(neng)不(bu)同。

  在GB 50160《石(shi)油(you)(you)(you)化工(gong)企(qi)業設計防(fang)火規范》中，廠際管(guan)道指敷設在石(shi)油(you)(you)(you)化工(gong)企(qi)業、油(you)(you)(you)庫、油(you)(you)(you)氣碼頭等(deng)不同圍墻界(jie)區之間且通(tong)過公共區域、長(chang)度小于(yu)等(deng)于(yu)30km的輸油(you)(you)(you)輸氣管(guan)道。

  在GB/T 51359《石(shi)油(you)化(hua)(hua)(hua)工(gong)(gong)(gong)廠際(ji)管(guan)(guan)道(dao)工(gong)(gong)(gong)程技術標準》規(gui)范中，廠際(ji)管(guan)(guan)道(dao)指石(shi)油(you)化(hua)(hua)(hua)工(gong)(gong)(gong)及(ji)煤(mei)化(hua)(hua)(hua)工(gong)(gong)(gong)企業、石(shi)油(you)庫、石(shi)油(you)化(hua)(hua)(hua)工(gong)(gong)(gong)碼頭等相互間的輸(shu)送可燃氣(qi)體、液化(hua)(hua)(hua)烴和可燃液體管(guan)(guan)道(dao)（石(shi)油(you)化(hua)(hua)(hua)工(gong)(gong)(gong)園區除外）。其特征(zheng)是敷設在石(shi)油(you)化(hua)(hua)(hua)工(gong)(gong)(gong)及(ji)煤(mei)化(hua)(hua)(hua)工(gong)(gong)(gong)企業、石(shi)油(you)庫、石(shi)油(you)化(hua)(hua)(hua)工(gong)(gong)(gong)碼頭等圍墻或用地邊界線(xian)之(zhi)間且(qie)通過公共區域，長度小于或等于30km。

  廠(chang)(chang)際管(guan)(guan)(guan)(guan)道(dao)(dao)的(de)特點是企(qi)業(ye)圍墻或(huo)用(yong)(yong)地(di)邊(bian)界線(xian)之(zhi)間(jian)、通(tong)過(guo)公共區(qu)域(yu)，長(chang)度≤30km。廠(chang)(chang)際管(guan)(guan)(guan)(guan)道(dao)(dao)長(chang)度限(xian)定在(zai)30km，考(kao)慮了(le)與長(chang)距離(li)(li)輸油(you)管(guan)(guan)(guan)(guan)道(dao)(dao)的(de)兩切斷閥間(jian)距相(xiang)協調。一(yi)般情況(kuang)下，長(chang)距離(li)(li)輸送(song)油(you)氣管(guan)(guan)(guan)(guan)道(dao)(dao)長(chang)度在(zai)50km以(yi)上，有中(zhong)間(jian)泵站或(huo)加壓(ya)站等特征，而廠(chang)(chang)際管(guan)(guan)(guan)(guan)道(dao)(dao)通(tong)常是多條管(guan)(guan)(guan)(guan)道(dao)(dao)并列(lie)敷設(she)，無中(zhong)間(jian)泵站或(huo)加壓(ya)站，這一(yi)長(chang)度也基本涵蓋了(le)目前(qian)石(shi)油(you)化(hua)工(gong)企(qi)業(ye)不同圍墻或(huo)用(yong)(yong)地(di)邊(bian)界之(zhi)間(jian)的(de)油(you)氣管(guan)(guan)(guan)(guan)道(dao)(dao)長(chang)度。廠(chang)(chang)際管(guan)(guan)(guan)(guan)道(dao)(dao)不屬于地(di)區(qu)輸油(you)（輸氣）管(guan)(guan)(guan)(guan)道(dao)(dao)，也不包括(kuo)石(shi)油(you)化(hua)工(gong)園區(qu)內公用(yong)(yong)的(de)輸送(song)可(ke)燃氣體(ti)、液化(hua)烴和可(ke)燃液體(ti)的(de)管(guan)(guan)(guan)(guan)道(dao)(dao)。一(yi)般定義(yi)廠(chang)(chang)際管(guan)(guan)(guan)(guan)道(dao)(dao)為GC類。