国产激情一区二区三区

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          Under what circumstances does the regulator not use the partition valve and the bypass valve?
          The author: Time:2020/12/21

          下列情況,調節閥不用隔斷閥和旁通閥:
            (a)驅動備用泵的汽輪機的蒸汽管上的調節閥;
            (b)為減少危險性介質泄漏的地方,如氫氣、酚或氫氟酸等;
            (c)在漿狀介質的管道內很難引入沖洗液,或在流體不是連續流的管道內可能會產生沉積物的情況;
            (d)不設隔斷閥和旁通閥,不致影響安全和操作者;
            (e)DN≥80mm帶手輪的調節閥。

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          国产激情一区二区三区

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