1.起溢流作用
用定量泵供油時，它與節流閥配合，可以調節和平衡液壓系統中的流量。在這種場合下，閥門經常隨著壓力的波動而開啟，油液經閥門流回油箱，起著定壓下的溢流作用R900425161 DBDA10K1X/100
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