溢流閥是一種液壓壓力控制閥。在液壓設(shè)備中主要起定壓溢流作用和安全保護(hù)作用。

 定壓溢流作用：在定量泵節(jié)流調(diào)節(jié)系統(tǒng)中，定量泵提供的是恒定流量。當(dāng)系統(tǒng)壓力增大時(shí)，會使流量需求減小。此時(shí)溢流閥開啟，使多余流量溢回油箱，保證溢流閥進(jìn)口壓力，即泵出口壓力恒定（閥口常隨壓力波動(dòng)開啟）。  

安全保護(hù)作用：系統(tǒng)正常工作時(shí)，閥門關(guān)閉。只有負(fù)載超過規(guī)定的極限（系統(tǒng)壓力超過調(diào)定壓力）時(shí)開啟溢流，進(jìn)行過載保護(hù)，使系統(tǒng)壓力不再增加（通常使溢流閥的調(diào)定壓力比系統(tǒng)zui高工作壓力高10％～20％）。   實(shí)際應(yīng)用中一般有：作卸荷閥用，作遠(yuǎn)程調(diào)壓閥，作高低壓多級控制閥，作順序閥，用于產(chǎn)生背壓（串在回油路上）。   溢流閥一般有兩種結(jié)構(gòu)：1、直動(dòng)型溢流閥 。2、先導(dǎo)型溢流閥

本公司是力士樂REXROTH武漢一級代理，如有需求請力士樂REXROTH

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DBD溢流閥
R900331916 DBDH10K1X/630V
R900334105 DBDA6K1X/315V
R900334729 DBDH20K1X/25V
R900340153 DBDS10G1X/25V/12
R900340488 DBDS10G1X/315V/12
R900341066 DBDS6G1X/200/12
R900341363 DBDS10G1X/100/12
R900341591 DBDS10G1X/200/12
R900342738 DBDS10G1X/400/12
R900343869 DBDH10K1X/400V
R900343871 DBDH6G1X/200V/12
R900343963 DBDS10G1X/200V/12
R900345310 DBDH6G1X/200/12
R900345502 DBDS20G1X/200/12
R900346720 DBDS20G1X/100/12
R900347093 DBDS6G1X/50/12
R900347284 DBDS6G1X/400/12
R900347546 DBDH6G1X/50/12
R900347687 DBDS10G1X/50/12
R900349041 DBDS10G1X/100V/12
R900350325 DBDS15G1X/25/12
R900351411 DBDS10G1X/25/12
R900352113 DBDS30G1X/200/12
R900352663 DBDH10G1X/630/12
R900352672 DBDS6G1X/315/12
R900353041 DBDS15G1X/400/12
R900356476 DBDS20G1X/315/12
R900361835 DBDH6P1X/315V
R900366796 DBDH6G1X/100/12
R900367037 DBDS20G1X/25/12
R900368990 DBDS30G1X/315V/12
R900369757 DBDH10G1X/400/12
R900369758 DBDH10G1X/315/12
R900369921 DBDS15G1X/100/12
R900370050 DBDS6G1X/25/12
R900375503 DBDS15G1X/200/12
R900377746 DBDS10G1X/315/12
R900377967 DBDS30G1X/100/12
R900379694 DBDS20G1X/50/12
R900381021 DBDA20K1X/100V
R900383671 DBDS6G1X/315V/12
R900385305 DBDH6G1X/400/12
R900387940 DBDH6G1X/315V/12
R900387959 DBDS30G1X/25/12
R900393177 DBDS25G1X/200/12
R900393748 DBDH6G1X/25/12
R900395057 DBDH10G1X/25/12
R900395059 DBDH6G1X/400V/12
R900395060 DBDS10G1X/400V/12
R900397459 DBDS20G1X/200V/12
R900403701 DBDH10G1X/100V
R900406900 DBDH10K1X/25V
R900420245 DBDS6K1X/25
R900420276 DBDS10K1X/25
R900420662 DBDA6G1X/400V
R900422542 DBDS20K1X/25
R900422543 DBDS30K1X/25
R900422544 DBDS20G1X/25
R900423711 DBDS30K1X/50V
R900423712 DBDS30P1X/100
R900423713 DBDS30P1X/100V
R900423714 DBDS30P1X/200
R900423715 DBDS30P1X/315
R900423716 DBDS30P1X/50
R900423717 DBDS6G1X/100
R900423718 DBDS6G1X/25
R900423719 DBDS6G1X/200
R900423720 DBDS6G1X/315
R900423721 DBDS6G1X/400
R900423722 DBDS6G1X/50
R900423723 DBDS6K1X/100
R900423724 DBDS6K1X/200
R900423725 DBDS6K1X/315
R900423726 DBDS6K1X/400
R900423727 DBDS6K1X/50
R900423728 DBDS6P1X/100
R900423729 DBDS6P1X/200
R900423730 DBDS6P1X/315
R900423731 DBDS6P1X/400
R900423732 DBDS6P1X/50
R900423733 DBDS8G1X/100
R900423734 DBDS8G1X/200
R900423735 DBDS8G1X/315
R900423743 DBDS10G1X/25
R900423758 DBDS30G1X/100V
R900423780 DBDA6K1X/25
R900423860 DBDA10G1X/100
R900423871 DBDA20K1X/100
R900423889 DBDS10G1X/25V
R900423891 DBDH10K1X/100
R900424082 DBDS20K1X/315V
R900424108 DBDH20G1X/50
R900424109 DBDH20K1X/100
R900424112 DBDH20K1X/50
R900424140 DBDS10G1X/200
R900424146 DBDS10G1X/50V
R900424147 DBDS10K1X/100
R900424148 DBDS10K1X/100V
R900424149 DBDS10K1X/200
R900424150 DBDS10K1X/315
R900424151 DBDS10K1X/315V
R900424152 DBDS10K1X/400
R900424153 DBDS10K1X/50
R900424154 DBDS10K1X/50V
R900424155 DBDS10P1X/100
R900424157 DBDS10P1X/200
R900424158 DBDS10P1X/315
R900424159 DBDS10P1X/315V
R900424162 DBDS15G1X/100
R900424163 DBDS15G1X/200
R900424165 DBDS15G1X/315
R900424167 DBDS15G1X/50
R900424172 DBDS20G1X/200
R900424174 DBDS20G1X/315
R900424175 DBDS20G1X/400
R900424178 DBDH10G1X/200
R900424183 DBDH10K1X/315
R900424184 DBDH10K1X/400
R900424185 DBDH10K1X/50
R900424188 DBDH10G1X/100
R900424189 DBDH10G1X/315
R900424190 DBDH10K1X/200
R900424195 DBDH6G1X/100
R900424196 DBDH6G1X/200
R900424197 DBDH6G1X/315
R900424198 DBDH6G1X/50
R900424199 DBDH6K1X/100
R900424200 DBDH6K1X/200
R900424201 DBDH6K1X/315
R900424202 DBDH6K1X/400
R900424203 DBDS20K1X/400
R900424204 DBDS20K1X/400V
R900424205 DBDS20K1X/50
R900424241 DBDH30K1X/100
R900424246 DBDH6P1X/100
R900424261 DBDS30G1X/315
R900424262 DBDS30G1X/50
R900424264 DBDS25G1X/200
R900424265 DBDS25G1X/315
R900424266 DBDH6P1X/315
R900424267 DBDS20K1X/100
R900424268 DBDS20K1X/100V
R900424269 DBDS20K1X/200
R900424270 DBDS20K1X/200V
R900424271 DBDS20K1X/315
R900424272 DBDS20P1X/50
R900424273 DBDS20K1X/50V
R900424274 DBDS20P1X/100
R900424276 DBDS20G1X/50
R900424277 DBDS20P1X/200
R900424278 DBDS20P1X/315
R900424279 DBDS20P1X/400
R900424281 DBDS30G1X/200
R900424282 DBDS30K1X/50
R900424283 DBDS30K1X/315V
R900424284 DBDS30K1X/100
R900424285 DBDS30K1X/100V
R900424286 DBDS30K1X/200
R900424287 DBDS30K1X/200V
R900424288 DBDS30K1X/315
R900424321 DBDS6K1X/200V
R900424348 DBDH6G1X/400
R900424734 DBDH6K1X/50
R900424738 DBDS10G1X/100
R900424741 DBDS10G1X/200V
R900424742 DBDS10G1X/315
R900424743 DBDS10G1X/315V
R900424744 DBDS10G1X/400
R900424745 DBDS10G1X/50
R900425076 DBDA6G1X/100
R900425080 DBDA6K1X/100
R900425081 DBDA6K1X/200
R900425082 DBDA6K1X/315
R900425083 DBDA6K1X/50
R900425161 DBDA10K1X/100
R900425162 DBDA10K1X/200
R900425164 DBDA10K1X/315
R900425165 DBDA10K1X/400
R900425660 DBDS10P1X/400
R900425661 DBDS10P1X/50
R900425678 DBDA10G1X/100/12
R900425966 DBDA10K1X/50
R900426477 DBDA6G1X/200
R900426478 DBDA6G1X/315
R900426835 DBDA10K1X/630
R900426897 DBDH6G1X/25
R900426898 DBDS15G1X/25
R900426901 DBDH10P1X/100
R900427242 DBDH6P1X/200
R900427243 DBDS30G1X/25
R900427600 DBDH6K1X/25
R900427601 DBDS10K1X/630
R900427603 DBDS8G1X/400
R900427604 DBDS20G1X/50V
R900427605 DBDH6G1X/315V
R900427940 DBDS10K1X/200V
R900428382 DBDA6G1X/400
R900428387 DBDA6K1X/400