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零下190攝氏度的液氮用什么管道來導流呢

時間:2020-10-12 10:36來源:未知 作者:ydgmve2020yyx 點擊:
工業管道按介質溫度分為: a.常溫管道:-40℃<t120℃ b.低溫管道: t 40℃ c.中溫管道:120℃<t450℃ d.高溫管道:450℃<t 低溫管道
工業管道按介質溫度分為:
a.常溫管道:-40℃<t≤120℃
b.低溫管道:            t≤   40℃
c.中溫管道:120℃<t≤450℃
d.高溫管道:450℃<t

低溫管道

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