如果要选 40 排量及以上，压力在6MPa 左右的叶片泵，主张选YB1系列的400吨单柱液压机。因从性价比上来说它是比较高的单柱液压机，100 排量的也就600 来元钱。这个价格仍是在计划经济时代定的价格。选20MPa 等级的油泵现首要有齿轮泵和叶片泵二种。从价格上来说中小排量的齿轮泵廉价，大排量的价格差不多。特大排量的（大于100 毫升的）只需选叶片泵，叶片泵有的系列有每转有数百毫升的。

20MPa 等级的油泵是选齿轮泵好仍是选叶片泵好，这个要看详细的要求和自己的喜爱。齿轮泵作业牢靠性相对来说要比叶片泵牢靠。特别是中小排量的齿轮泵拉伸液压机。叶片泵除了天冷简单出问题外还有一个状况就象上面一个社友说的，一个液压站长时刻不必里边的液压油会变厚，运用时会打不出油来，表现出来的现象就是液压站没有压力。赌博网现在有的液压站出口去国外。往往从交货到他们开端运用这中心要隔半年以上时间。有的可能拿去几年都不必。当然从深层次方面讲，叶片泵也有噪音小，油的脉动性小等长处框架式液压机。但我在选型时如果没有特别的状况一般喜爱选齿轮泵。这类泵的价格大概在300-600 元之间。叶片泵一般要高于这个价格大约在500-1000 元之间。以上指的是排量在30 以下的。如果大于这个排量价格就不对了，特别是100 多升，200 多升的叶片泵进口的

DOUYAOJIQIANYUANDAOJIWANYUAN。

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