点击图片查看原图溢流阀是一种液压压力控制阀，在液压设备(http://www.maoyihang.com/invest/l_168/)中主要起定压溢流，稳压，系统卸荷和安全保护作用。溢流阀在装配或使用中，由于O形密封圈、组合密封圈的损坏，或者安装螺钉、管接头的松动，都可能造成不应有的外泄漏。如果锥阀或主阀芯磨损过大，或者密封面接触不良，还将造成内泄漏过大，甚*影响正常工作。
定压溢流作用：在定量泵节流调节系统中，定量泵提供的是恒定流量。当系统压力增大时，会使流量需求减小。此时溢流阀开启，使多余流量溢回油箱，**溢流阀进口压力，即泵出口压力恒定（阀口常随压力波动开启）。
稳压作用：溢流阀串联在回油路上，溢流阀产生背压，运动(http://www.maoyihang.com/invest/l_196/)部件平稳性增加。
系统卸荷作用：在溢流阀的遥控口串接溢小流量的电磁阀，当电磁铁通电时，溢流阀的遥控口通油箱，此时液压泵卸荷。溢流阀此时作为卸荷阀使用。
安全保护作用：系统正常工作时，阀门关闭。只有负载超过规定的极限（系统压力超过调定压力）时开启溢流，进行过载保护，使系统压力不再增加（通常使溢流阀的调定压力比系统*高工作压力高10%～20%）。
DBDS溢流阀 直动式溢流阀 先导式溢流阀特价现货型号
R900422542 REXROTH溢流阀DBDS20K1X/25
R900422543 REXROTH溢流阀DBDS30K1X/25
R900423714 REXROTH溢流阀DBDS30P1X/200
R900423715 REXROTH溢流阀DBDS30P1X/315
R900423719 REXROTH溢流阀DBDS6G1X/200
R900423722 REXROTH溢流阀DBDS6G1X/50
R900423723 REXROTH溢流阀DBDS6K1X/100
R900423724 REXROTH溢流阀DBDS6K1X/200
R900423725 REXROTH溢流阀DBDS6K1X/315
R900423726 REXROTH溢流阀DBDS6K1X/400
R900423727 REXROTH溢流阀DBDS6K1X/50
R900423728 REXROTH溢流阀DBDS6P1X/100
R900423729 REXROTH溢流阀DBDS6P1X/200
R900423730 REXROTH溢流阀DBDS6P1X/315
R900423732 REXROTH溢流阀DBDS6P1X/50
R900423735 REXROTH溢流阀DBDS8G1X/315
R900423743 REXROTH溢流阀DBDS10G1X/25
R900423766 REXROTH溢流阀DBD.10G1X/...
R900424082 REXROTH溢流阀DBDS20K1X/315V
R900424109 REXROTH溢流阀DBDH20K1X/100
R900424140 REXROTH溢流阀DBDS10G1X/200
R900424147 REXROTH溢流阀DBDS10K1X/100
R900424148 REXROTH溢流阀DBDS10K1X/100V
R900424149 REXROTH溢流阀DBDS10K1X/200
R900424150 REXROTH溢流阀DBDS10K1X/315
R900424151 REXROTH溢流阀DBDS10K1X/315V
R900424152 REXROTH溢流阀DBDS10K1X/400
R900424153 REXROTH溢流阀DBDS10K1X/50
R900424155 REXROTH溢流阀DBDS10P1X/100
R900424157 REXROTH溢流阀DBDS10P1X/200
R900424158 REXROTH溢流阀DBDS10P1X/315
R900424159 REXROTH溢流阀DBDS10P1X/315V
R900424163 REXROTH溢流阀DBDS15G1X/200
R900424165 REXROTH溢流阀DBDS15G1X/315
R900424171 REXROTH溢流阀DBDS20G1X/100V
R900424172 REXROTH溢流阀DBDS20G1X/200
R900424174 REXROTH溢流阀DBDS20G1X/315
R900424179 REXROTH溢流阀DBDH10G1X/400
R900424183 REXROTH溢流阀DBDH10K1X/315
R900424186 REXROTH溢流阀DBDH10P1X/200
R900424187 REXROTH溢流阀DBDH10P1X/315
R900424189 REXROTH溢流阀DBDH10G1X/315
R900424190 REXROTH溢流阀DBDH10K1X/200
R900424196 REXROTH溢流阀DBDH6G1X/200
R900424199 REXROTH溢流阀DBDH6K1X/100
R900424200 REXROTH溢流阀DBDH6K1X/200
R900424201 REXROTH溢流阀DBDH6K1X/315
R900424203 REXROTH溢流阀DBDS20K1X/400
R900424205 REXROTH溢流阀DBDS20K1X/50
R900424260 REXROTH溢流阀DBDS30G1X/200V
R900424261 REXROTH溢流阀DBDS30G1X/315
R900424262 REXROTH溢流阀DBDS30G1X/50
R900424264 REXROTH溢流阀DBDS25G1X/200
R900424266 REXROTH溢流阀DBDH6P1X/315
R900424267 REXROTH溢流阀DBDS20K1X/100
R900424269 REXROTH溢流阀DBDS20K1X/200
R900424270 REXROTH溢流阀DBDS20K1X/200V
R900424271 REXROTH溢流阀DBDS20K1X/315
R900424272 REXROTH溢流阀DBDS20P1X/50
R900424274 REXROTH溢流阀DBDS20P1X/100
R900424277 REXROTH溢流阀DBDS20P1X/200
R900424278 REXROTH溢流阀DBDS20P1X/315
R900424279 REXROTH溢流阀DBDS20P1X/400
R900424281 REXROTH溢流阀DBDS30G1X/200
R900424282 REXROTH溢流阀DBDS30K1X/50
R900424283 REXROTH溢流阀DBDS30K1X/315V
R900424284 REXROTH溢流阀DBDS30K1X/100
R900424286 REXROTH溢流阀DBDS30K1X/200
R900424288 REXROTH溢流阀DBDS30K1X/315
R900424321 REXROTH溢流阀DBDS6K1X/200V
R900424348 REXROTH溢流阀DBDH6G1X/400
R900424734 REXROTH溢流阀DBDH6K1X/50
R900424738 REXROTH溢流阀DBDS10G1X/100
R900424742 REXROTH溢流阀DBDS10G1X/315
R900424744 REXROTH溢流阀DBDS10G1X/400
R900424745 REXROTH溢流阀DBDS10G1X/50
R900425084 REXROTH溢流阀DBDA6P1X/100
R900425646 REXROTH溢流阀DB20K1-1X/50XYU
R900425660 REXROTH溢流阀DBDS10P1X/400
R900425661 REXROTH溢流阀DBDS10P1X/50
R900426477 REXROTH溢流阀DBDA6G1X/200
R900426901 REXROTH溢流阀DBDH10P1X/100
R900426905 REXROTH溢流阀DBDS10P1X/25
R900427242 REXROTH溢流阀DBDH6P1X/200
R900427243 REXROTH溢流阀DBDS30G1X/25
R900427600 REXROTH溢流阀DBDH6K1X/25
R900427940 REXROTH溢流阀DBDS10K1X/200V
R900428385 REXROTH溢流阀DBDH6P1X/50
R900428388 REXROTH溢流阀DBDS6K1X/315V
R900429168 REXROTH溢流阀DBDS30P1X/315V
R900429414 REXROTH溢流阀DBDS6P1X/25
R900429711 REXROTH溢流阀DBDS30P1X/25
R900430311 REXROTH溢流阀DBDS20P1X/25
R900430459 REXROTH溢流阀DBDA6P1X/200
R900434128 REXROTH溢流阀DBDH6P1X/400
R900435108 REXROTH溢流阀DBD.30P1X/...
R900435222 REXROTH溢流阀DBDH10K1X/25
R900435450 REXROTH溢流阀DBDS6P1X/315V
R900437810 REXROTH溢流阀DBDS20P1X/315V
R900438025 REXROTH溢流阀DB6K1-4X/50YV
R900438122 REXROTH溢流阀DB10K1-4X/315YV
R900438123 REXROTH溢流阀DB10K2-4X/200YV
R900438939 REXROTH溢流阀DBDS6K1X/400V
R900439247 REXROTH溢流阀DBDH25G1X/50
R900443139 REXROTH溢流阀DB20-1-4X/100W65
R900452120 REXROTH溢流阀DB10-1-4X/50XUW65
R900458607 REXROTH溢流阀DB10-1-4X/315W65
R900462393 REXROTH溢流阀DBDS10K1X/25V
