穩(wěn)壓作用：溢流閥串聯(lián)在回油路上，溢流閥產(chǎn)生背壓運(yùn)動(dòng)部件平穩(wěn)性增加。
系統(tǒng)卸荷作用：在溢流閥的遙控口串接溢小流量的電磁閥，當(dāng)電磁鐵通電時(shí)，溢流閥的遙控口通油箱，此時(shí)液壓泵卸荷。溢流閥此時(shí)作為卸荷閥使用R900424172 DBDS20G1X/200
R900424174 DBDS20G1X/315
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R900424241 DBDH30K1X/100
R900424246 DBDH6P1X/100
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R900424266 DBDH6P1X/315
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R900428388 DBDS6K1X/315V
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R900433216 DBDS6G1X/315V
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R900438939 DBDS6K1X/400V
R900439957 DBDS20P1X/50V
R900441034 DBDS6K1X/100V
R900441778 DBDH6G1X/200V
