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更新時間：2023-03-20 
瀏覽次數：728REXROTH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
R900424147 DBDS 10 K1X/100
R900424148 DBDS 10 K1X/100V
R900424149 DBDS 10 K1X/200
R900424150 DBDS 10 K1X/315
R900424151 DBDS 10 K1X/315V
R900424152 DBDS 10 K1X/400
R900424153 DBDS 10 K1X/50
R900424154 DBDS 10 K1X/50V
R900424155 DBDS 10 P1X/100
R900424156 DBDS 10 P1X/100V
R900424157 DBDS 10 P1X/200
R900424158 DBDS 10 P1X/315
R900424159 DBDS 10 P1X/315V
R900424161 DBDH 8 G1X/200
R900424162 DBDS 15 G1X/100
R900424163 DBDS 15 G1X/200
R900424164 DBDS 15 G1X/200V
R900424165 DBDS 15 G1X/315
R900424166 DBDS 15 G1X/400
R900424167 DBDS 15 G1X/50
R900424170 DBDS 20 G1X/100
R900424171 DBDS 20 G1X/100V
R900424172 DBDS 20 G1X/200
R900424173 DBDS 20 G1X/200V
R900424174 DBDS 20 G1X/315
R900424175 DBDS 20 G1X/400
R900424176 DBDA 10 G1X/315
R900424177 DBDA 6 G1X/50
R900424178 DBDH 10 G1X/200
R900424179 DBDH 10 G1X/400
R900424180 DBDH 10 G1X/50
R900424182 DBDH 15 G1X/50
R900424183 DBDH 10 K1X/315
R900424184 DBDH 10 K1X/400
R900424185 DBDH 10 K1X/50
R900424186 DBDH 10 P1X/200
R900424187 DBDH 10 P1X/315
R900424188 DBDH 10 G1X/100
R900424189 DBDH 10 G1X/315
R900424190 DBDH 10 K1X/200
R900424191 DBDH 15 G1X/100
R900424193 DBDH 30 K1X/50
R900424195 DBDH 6 G1X/100
R900424196 DBDH 6 G1X/200
R900424197 DBDH 6 G1X/315
R900424198 DBDH 6 G1X/50
R900424199 DBDH 6 K1X/100
R900424200 DBDH 6 K1X/200
R900424201 DBDH 6 K1X/315
R900424202 DBDH 6 K1X/400
R900424203 DBDS 20 K1X/400
R900424204 DBDS 20 K1X/400V
R900424237 DBDH 30 G1X/100
R900424241 DBDH 30 K1X/100
R900424246 DBDH 6 P1X/100
R900424260 DBDS 30 G1X/200V
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