관所需的压头如何确定？
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해천의各位朋友好，请교一个离心泵选型的问题，本公司有一套导热油电加热保温系统就是离心泵循环电加热棒加热经过四个串联保温油槽每套单独油槽蛇形走油四个两两串联现在回油至油箱的线线基本没有压力显示离心泵之前选小了现在想改造请问离心泵如何选型其中管所需压头如何确定？
공艺要求的管路内介质压力流量对照这个压力与流量选型时留点余量
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