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力士樂DBDA 6 K1X/315溢流閥特點

REXROTH溢流閥DB和DBW型閥門是插入結構的先導型溢流閥，用來限制系統壓力(DB)，或者限制(DBW只有螺紋連接)系統的壓力。此閥組主要包括閥體和溢流閥的插入元件。管路內的壓力作用在閥芯上，通過節流孔作用于球閥芯。管路內的壓力超過了彈簧所設定的壓力值，球閥芯克服了彈力開啟。這時從油口流出的油液通過節流孔流入彈簧腔，由外部控制通道引導到油箱內。當閥芯內高壓流體處于平衡狀態時，油液通過A口流入B口，同時保持設定的工作壓力恒定。DBW型溢流閥(只有螺紋聯接)的功能與DB型一樣。利用頂向閥可以控制主閥的卸荷。

1.定壓溢流作用:在定量泵節流調節系統中,定量泵提供的是恒定流量。當系統壓力增大時,會使流量需求減小。此時溢流閥開啟,使多余流量溢回油箱,保證溢流閥進...

2.穩壓作用:溢流閥串聯在回油路上,溢流閥產生背壓,運動部件平穩性增加。

3.系統卸荷作用:在溢流閥的遙控口串接溢小流量的電磁閥,當電磁鐵通電時,溢流閥的遙控口通油箱,此時液壓泵卸荷。溢流閥此時作為卸荷閥使用。

R900424140 DBDS 10 G1X/200

R900424146 DBDS 10 G1X/50V

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力士樂DBDA 6 K1X/315溢流閥特點