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，使系统压力不再增加(通常使溢流阀的调定压力比系统工作压力高10%~20%)。

实际应用中一般有:作卸荷阀用，作远程调压阀，作高低压多级控制阀，作顺序阀，用于产生背压(串在回油路上)。

溢流阀一般有两种结构:1、直动型溢流阀 。2、先导式溢流阀。

对溢流阀的主要要求:调压范围大，调压偏差小，压力振摆小，动作灵敏，过载能力大，噪声小。

DBEM10-7X/200YG24K4M力士乐液压阀现货供应Bosch DBETBX-1X/28G24-37Z4M
Bosch DBETBX-1X/80G24-37Z4M2
Bosch DBETBX-1X/180G24-37Z4M
Bosch DBETBX-1X/250G24-37Z4M2
Bosch DBETBX-1X/315G24-37Z4M
Bosch DBETBEX-1X/80G24k31A1M
Bosch DBETBEX-1X/180G24k31A1M
Bosch DBETBEX-1X/250G24k31A1M
Bosch DBETBEX-1X/315G24k31A1M
Bosch DBETBEX-1X/80G24k31F1M
Bosch DBETBEX-1X/180G24k31F1M
Bosch DBETBEX-1X/315G24k31F1M
Bosch DBETFX-1X/80G24-27NZ4M
Bosch DBETFX-1X/180G24-27NZ4M
Bosch DBETFX-1X/250G24-27NZ4M
Bosch DBETFX-1X/315G24-27NZ4M
Bosch DBETX-1X/50G24-8NZ4M
Bosch DBETX-1X/80G24-8NZ4M
Bosch DBETX-1X/180G24-8NZ4M
Bosch DBETX-1X/250G24-8NZ4M
Bosch DBETX-1X/315G24-8NZ4M
Bosch DBETX-1X/50G24-25NZ4M
Bosch DBETX-1X/80G24-25NZ4M
Bosch DBETX-1X/180G24-25NZ4M
Bosch DBETX-1X/250G24-25NZ4M
Bosch DBETX-1X/315G24-25NZ4M
Bosch DBEP 6 A06-1X/4G24K4M R900955079
Bosch DBEP 6 B06-1X/4G24K4M R900955080
Bosch DBEP 6 C06-1X/4G24K4M R900955082
Bosch DBET-6X/50G24K4V R901000842
Bosch DBET-6X/100G24K4V R901000845
Bosch DBET-6X/200G24K4V R901000846
Bosch DBET-6X/315G24K4V R901000847
Bosch DBET-6X/350G24K4V R901000848
Bosch DBETE-6X/50G24K31A1V R901029966
Bosch DBETE-6X/100G24K31A1V R901029967
Bosch DBETE-6X/200G24K31A1V R901029968
Bosch DBETE-6X/315G24K31A1V R901029969
Bosch DBETE-6X/350G24K31A1V R901029970
Bosch DBETR-1X/30G24K4M R900954438
Bosch DBETR-1X/80G24K4M R900334966
Bosch DBETR-1X/180G24K4M R900491698
Bosch DBETR-1X/230G24K4M R900370146
Bosch DBETR-1X/315G24K4M R900485944
Bosch DBETR-1X/350G24K4M R900352424
Bosch DBEBE6X-1X/80G24K31A1M
Bosch DBEBE6X-1X/180G24K31A1M
Bosch DBEBE6X-1X/315G24K31A1M
Bosch DBEBE6X-1X/80G24K31F1M
Bosch DBEBE6X-1X/180G24K31F1M
Bosch DBE10Z-1X/180XYG24-8NZ4M
Bosch DBE10Z-1X/315XYG24-8NZ4M
Bosch DBEB10Z-1X/180XYG24-37Z4M
Bosch DBEB10Z-1X/315XYG24-37Z4M
Bosch DBEBE10Z-1X/180XYG24K31A1M
Bosch DBEBE10Z-1X/315XYG24K31A1M
Bosch DBEME 10-5X/50YG24K31M R900908585