【简答题】
为什么FV20001、FV20002氢气控制阀分别有三个？如何选择
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答案
设定三个控制阀的目的是：便于提高H2进料的计量精度，有低范围的流量控制，有中范围的流量控制，有高范围的流量控制。选择要根据所要生产的产品牌号及其所要求的熔融指数而定
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