液压泵是以液体为动力的机械设备，它的输出直接受到液压系统的压力和流量的控制压力高流量大，流量就大，但是如果压力低流量就小，压力高流量小，压力低流量就大如果压力低流量大时，则泵内压力就低 1、减少油液流量的变化。
油液在流动过程中，由于各种原因，会发生瞬时流量增大和急剧下降，当达到一定流量时，由于压力降低而开始下降，但当达到一定温度时又开始上升油液流动的速度、温度、压力三者之间的关系如图所示配流盘可以使油液减少流量波动。
配流盘能够提高油液的输送效率以保证系统压力波动不超过1pa 2、减少对设备的磨损 配流盘的流道是一种非凸凸的设计，可以减少流道间的摩擦力由于流体处于流动状态，因而减少了机械设备对流道的磨损，从而降低了机械磨损。
另外，配流盘的形状也可减轻泵对磨损，延长其使用寿命 3、减小输送过程中的阻力 流体的运动是不可逆的，而且流体的运动是一个复杂的数学问题流体的运动在很大程度上取决于流体的流速和流体中的固体颗粒大小流体的运动是连续的，这就要求流体必须在指定的速度内流动。
液体表面和流体内是有一定粗糙度的，表面粗糙度越大流体阻力越小流体表面粗糙度越小，其流动就越快 4、使流量与压力之比减小到最小 为减小流量与压力之比，在配流盘的结构上一般是用来减小压力和流量之比这就要求配流盘能够承受的压力是最小的。
所以在用泵时应尽可能地使配流盘承受的压力尽可能大一般用直径为60~150mm的圆盘体做配流盘这样的配流盘称为圆盘体 5、便于配流系统 液压泵有很多种，有些是采用变速控制的，还有一些是用变速来控制的这些液压泵的流道和阀杆位置不同，流道比较长，阀杆位置较低，这种结构可以方便配流。
另外，液控式液压泵的阀杆为直线型，而且多采用变速阀，这样配流系统就很容易了但这些流道与阀杆不同的是不能为高压流量配流 90-L-100-KN-1-BC-60-P-3-F1-E-03-GBA-35-35-20 90L100KN1BC60P3F1E03GBA353520 90-L-100-KN-1-BC-60-P-3-F1-E-03-GBA-35-35-24 90L100KN1BC60P3F1E03GBA353524 90-L-100-KN-1-BC-60-P-3-S1-E-03-GBA-35-35-24 90L100KN1BC60P3S1E03GBA353524 90-L-100-KN-1-BC-60-R-3-F1-E-03-GBA-32-32-24 90L100KN1BC60R3F1E03GBA323224 90-L-100-KN-1-BC-80-D-4-S1-L-03-GBA-35-35-24 90L100KN1BC80D4S1L03GBA353524 90-L-100-KN-1-BC-80-L-3-S1-F-03-GBA-14-14-24 90L100KN1BC80L3S1F03GBA141424 90-L-100-KN-1-BC-80-R-3-S1-E-03-GBA-42-42-24 90L100KN1BC80R3S1E03GBA424224 90-L-100-KN-1-BC-80-R-4-F1-E-03-GBA-20-20-24 90L100KN1BC80R4F1E03GBA202024 90-L-100-KN-1-BC-80-R-4-F1-E-03-GBA-42-14-24 90L100KN1BC80R4F1E03GBA421424 90-L-100-KN-1-BC-80-R-4-S1-E-03-GBA-42-42-24 90L100KN1BC80R4S1E03GBA424224 90L100-KN-1-BC-80-R-4-S1-E-03-GBA-42-42-24 90L100KN1BC80R4S1E03GBA424224 90-L-100-KN-1-BC-80-S-4-S1-E-03-GBA-35-35-24 90L100KN1BC80S4S1E03GBA353524 90L100-KN-1-BC-80-S-4-S1-E-03-GBA-35-35-24 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