Rexroth力士乐先导式比例方向阀

（力士乐rexroth溢流阀）是一种液压压力控制阀，在液压设备中主要起定压溢流作用，稳压，系统卸荷和安全保护作用。

溢流阀是一种液压压力控制阀，在液压设备中主要起定压溢流作用，稳压，系统卸荷和安全保护作用。

溢流阀的作用

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，保证溢流阀进口压力，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，使系统压力增加（通常使溢流阀的调定压力比系统工作压力高10%～20%）。

产品名称:4WRH,WRZ,WRZE型先导式比例方向阀

品牌:力士乐Rexroth系列:力士乐阀产品描述:

品牌系列:REXROTH(力士乐)

产品型号:4WRH,WRZ,WRZE型

所属类别:比例方向阀

产品说明:规格10至52安装面按ISO 4401控制流量的方向和大小;通过3通减压阀进行先导控制弹簧对中和主阀芯的反转动特点;不同阀芯可遮盖用于4WRZE的集成控制电气元件(OBE)。

Rexroth力士乐先导式比例方向阀

（力士乐rexroth溢流阀）的作用 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。

部分（力士乐rexroth溢流阀）系列型号：

溢流阀DBDS系列

R900420245DBDS6K1X/25

R900423727DBDS6K1X/50

R900423723DBDS6K1X/100

R900423724DBDS6K1X/200

R900423725DBDS6K1X/315

R900423726DBDS6K1X/400

R900420276DBDS10K1X/25

R900424153DBDS10K1X/5O

R900424147DBDS10K1X/100

R900424149DBDS10K1X/2O0

R900424150DBDS10K1X/315

R900424152DBDS10K1X/400

R900427601DBDS10K1X/630

R900422542DBDS20K1X/25

R900424205DBDS20K1X/50

R900424267DBDS20K1X/100

R900424271DBDS20K1X/315

R900424203DBDS20K1X/400

R900422543DBDS30K1X/25

R900424282DBDS30K1X/50

R900424284DBDS30K1X/100

R900424286DBDS30K1X/200

Rd00424286DBDS30K1X/315

R900423718DBDS6G1X/25

R900423722DBDS6G1X/50

R900423717DBDS6G1X/100

R900423719DBDS6G1X/200

R900423720DBDS6G1X/315

R900423721DBDS6G1X/400

R900429414DBDS6P1X/25

R900423732DBDS6P1X/50

R900423728DBDS6P1X/100

R900423729DBDS6P1X/200

R900423730DBDS6P1X/315

R900423731DBDS6P1X/400

溢流阀先导阀 DBT ZDBT系列

0811104100DBT-XP8-1X/160

0811104101DBT-XP8-1X/315

0811104102DBT-XP2-1X/160

0811104103DBT-XP2-1X/315

0811104131DBT-XP2-1X/350

0811104104DBT-XP7-1X/160

0811104105DBT-XP7-1X/315

0811104106DBT-XP3-1X/160

0811104107DBT-XP3-1X/315

0811104108DBT-XP1-1X/160

0811104109DBT-XP1-1X/315

0811104110ZDBT-XP8-1X/160

0811104111ZDBT-XP8-1X/315

0811104112ZDBT-XP2-1X/160

0811104113ZDBT-XP2-1X/315

0811104130ZDBT-XP2-1X/350

0811104114ZDBT-XP7-1X/160

0811104115ZDBT-XP7-1X/315

0811104116ZDBT-XP3-1X/160

0811104117ZDBT-XP3-1X/315

0811104118ZDBT-XA8-1X/160

0811104119ZDBT-XA8-1X/315

0811104120ZDBT-XA2-1X/160

0811104121ZDBT-XA2-1X/315

溢流阀直动式 ZDBY Z2DBY

0811101275ZDBY10DP2-1X/80V

0811101276ZDBY10DP2-1X/160V

0811101277ZDBY10DP2-1X/315V

0811101278ZDBY10DP3-1X/80V

0811101279ZDBY10DP3-1X/160V

0811101280ZDBY10DA2-1X/80V

0811101281ZDBY10DA2-1X/160V

0811101282ZDBY10DA2-1X/315V

0811101283ZDBY10DA3-1X/80V

0811101284ZDBY10DA3-1X/160V

0811101285ZDBY10DB2-1X/80V

0811101286ZDBY10DB2-1X/160V

0811101287ZDBY10DB2-1X/315V

0811101288ZDBY10DB3-1X/80V

0811101289ZDBY10DB3-1X/160V

0811101290Z2DBY10DC2-1X/80V

0811101291Z2DBY10DC2-1X/160V

0811101292Z2DBY10DC2-1X/315V

0811101293Z2DBY10DC3-1X/80V

0811101294Z2DBY10DC3-1X/160V

0811101295Z2DBY10DD2-1X/80V

0811101296Z2DBY10DD2-1X/160V

0811101297Z2DBY10DD2-1X/315V

0811101298Z2DBY10DD3-1X/80V

0811101299Z2DBY10DD3-1X/160V

溢流阀先导式DB

R900590645DB10-2-5X/50

R900590646DB10-2-5X/100

R900587772DB10-2-5X/200

R900590334DB10-2-5X/315

R900597992DB10-2-5X/350

R900597212DB10-2-5X/50

R900589433DB20-2-5X/100

R900590768DB20-2-5X/200

R900593530DB20-2-5X/315

R900590618DB20-2-5X/350

R900590328DB20G2-5X/50

R900597307DB20G2-5X/200

R900597747DB20G2-5X/315

R900599232DB20G2-5X/350

R900593564DB30-2-5X/50

R900594677DB30-2-5X/100

R900588131DB30-2-5X/200

R900591128DB30-2-5X/315

R900504902DB30-2-5X/350

R901051933   DB3U 10 H1-5X/315-6EG24N9K4

R900911453   DB3U 10 H2-5X/100-6EG24K4

R900949067   DB3U 10 H2-5X/100-6EG24N9K4

R900955024   DB3U 10 H2-5X/100-6EW110N9K4

R901121185   DB3U 10 H2-5X/100-6EW230N9K4

R900959064   DB3U 10 H2-5X/100U6EG24N9K4

R901216698   DB3U 10 H2-5X/100Y6EG24N9K4

R900723678   DB3U 10 H2-5X/100YU6EG24N9K4

R900928220   DB3U 10 H2-5X/100YU6EW230N9K4

R900924809   DB3U 10 H2-5X/200-6EW110N9K4V

R901269809   DB3U 10 H2-5X/200U6EG24N9K4

R901153630   DB3U 10 H2-5X/200Y6EG24N9K4

R900939426   DB3U 10 H2-5X/315-6EG205N9K4

R900951841   DB3U 10 H2-5X/315-6EG24N4K4

R900943647   DB3U 10 H2-5X/315-6EG24N5K4

R900701668   DB3U 10 H2-5X/315-6EG24N9DLV

R900971065   DB3U 10 H2-5X/315-6EG24N9K4

R900942890   DB3U 10 H2-5X/315-6EG24N9K4V

R900710474   DB3U 10 H2-5X/315-6EG24NEXZ2

R901118997   DB3U 10 H2-5X/315-6EW110N9K4

R900771578   DB3U 10 H2-5X/315-6EW110N9K4V

R900924943   DB3U 10 H2-5X/315-6EW230N9K4

R901068112   DB3U 10 H2-5X/315U6EG220N9K4

R900957198   DB3U 10 H2-5X/315U6EG24N9K4

R901193736   DB3U 10 H2-5X/315U6EW110N9K4

R900747100   DB3U 10 H2-5X/315U6EW230N9K4

R900958750   DB3U 10 H2-5X/315X6EG24N9K4

R900941188   DB3U 10 H2-5X/315XY6EG24K4

R900757839   DB3U 10 H2-5X/315XY6EG24N9K4

R901061962   DB3U 10 H2-5X/315XYU6EW230N9K4

R900941877   DB3U 10 H2-5X/315Y6EG24N9K4

R901091971   DB3U 10 H2-5X/315Y6EG24N9K4V

R900966180   DB3U 10 H2-5X/315Y6EG24NDL

R900723099   DB3U 10 H2-5X/315Y6EW110N9K4

R900967331   DB3U 10 H2-5X/315Y6EW230N9K4

R900617323   DB3U 10 H2-5X/315YU6EG24N9K4

R900971664   DB3U 10 H2-5X/315YU6EW110N9K4

R900955174   DB3U 10 H2-5X/350-6EG24N9K4

R900943336   DB3U 10 H2-5X/350-6EG24NDL

R901056675   DB3U 10 H2-5X/350-6EW110N9K4

R900747206   DB3U 10 H2-5X/350-6EW230N9K4

R901340776   DB3U 10 H2-5X=350-6EG24N9K4

R900769246   DB3U 10 H3-5X/100-6EG24N9K4

R900938529   DB3U 10 HG2-5X/350-6EG24N9K4

R900786706   DB3U 10 HG3-5X/200-6EG24N9K4