力士乐原装溢流阀先导式DB系列

产品参数

加工定制：否 品牌：REXROTH/力士乐 型号：DB6VPW2-1X/80V 标准：A 材料级别：A 材质：铸铁 产地：德国 阀体材料：铸铁 工作温度：高温 密封材料：塑胶 适用介质：油 用途：分流

溢流阀先导式DB 

 0811106208 DB6VPW2-1X/80V 0811106209 DB6VPW2-1X/160V 0811106210 DB6VPW3-1X/80V 0811106211 DB6VPW3-1X/160V R900590645 DB10-2-5X/50 R900590646 DB10-2-5X/100 R900587772 DB10-2-5X/200 R900590334 DB10-2-5X/315 R900597992 DB10-2-5X/350 R900597212 DB10-2-5X/50 R900589433 DB20-2-5X/100 R900590768 DB20-2-5X/200 R900593530 DB20-2-5X/315 R900590618 DB20-2-5X/350 R900590328 DB20G2-5X/50 R900597307 DB20G2-5X/200 R900597747 DB20G2-5X/315 R900599232 DB20G2-5X/350 R900593564 DB30-2-5X/50 R900594677 DB30-2-5X/100 R900588131 DB30-2-5X/200 R900591128 DB30-2-5X/315 R900504902 DB30-2-5X/350 R900598338 DB30G2-5X/50 R900502598 DB30G2-5X/100 R900500719 DB30G2-5X/200 R900594426 DB30G2-5X/315 R900535222 DB30G2-5X/350 R900470297 DB20K2-1X/100XY R900470298 DB20K2-1X200XY R900493939 DB20K2-1X315XY R900403149 DB10G2-4750W65 R900405532 DB10G2-47100W65 R900404262 DB10G247200W65 R900441994 DB10G247315W65 R900517879 DB10-24750W65 R900593404 DB10-247100W65 R900368564 DB10-247200W65 R900592765 DB10-247315W65 R900597122 DB10-247350W65 R900479678 DB20G24750W65 R900407106 DB20G2-47100W65 R900401564 DB20G247200W65 R900423704 DB20G247315W65 R900402410 DB20G2-47350W65 R900503495 DB20-2-475065 R900503250 DB20-247200W65 R900592968 DB20-247315W65 R900510838 DB20247315XW65 R900593586 DB20-2-47350W65 R900926054 DBW10A2-5X/315-6EG24N9K4 R900921754 DBW20A2-5X/315-6EG24N9K4 DBW10B1-52/350S6EG24N9K4R12 R900923103 DBW10B1-52/200-6EG24N9K4 R900912910 DBW10B2-52/200-6EG24N9K4 R900906285 DBW10B2-5X/315-6EG24N9K4 R900935659 DBW20B1-5X/200-6EG24N9K4 R900907684 DBW20B2-5X/315-6EG24N9K4 R900923938 DBW30B2-5X/200-6EG24N9K4 R900922311 DBW30B2-5X/315-6EG24N9K4 R900487903 DB6K2-47/50YV R900483440 DB6K2-47/100YV R900486196 DB6K2-47/200YV R900483441 DB6K2-47/315YV R900422817 DB10K2-47/50YV R900453240 DB10K2-47/100YV R900438123 DB10K2-47/200YV R900438126 DB10K2-47/315YV

 先导式溢流阀的工作原理： 当压力油从入口流入时，压力作用在主阀芯下端平面上。阀体内部设计有阻尼孔，压力油通过后进入先导阀的右腔，并作用于先导溢流阀的阀芯上。先导溢流阀的阀芯受弹簧推力而处于常闭状态，通过外部的调节手柄，可对弹簧的预调压力做出调整。当液压压力小于弹簧预调压力时，先导阀芯始终处于封闭状态，此时主阀芯亦无相应动作。当液压系统压力上升，导致先导阀内部液压压力大于弹簧预调压力，先导阀开启，在阻尼孔的降压作用下，主阀芯上、下产生压力差，因此主阀芯上抬，原本密封的进油路以及出油路相通，压力油直接从进油口到出油口，实现卸荷。

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