Rexroth力士乐比例溢流阀先导外置放大器
发布时间 2023-07-21 14:31:28
产品描述
比例溢流阀工作原理是:比例溢流阀通过弹簧力的大小改变溢流压力大大小变化,比例电磁铁作用在弹簧上的力可以按比例调整,所以就输入信号变化比例溢流阀的压力也会变化。
1.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)。
2.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
3. 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。
4.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。
德国力士乐比例溢流阀部分型号:
带位置反馈比例溢流阀DBETBX
DBETBEX
0811402013 DBETBX-1X/28G24-37Z4M
0811402003 DBETBX-1X/180G24-37Z4M
0811402004 DBETBX-1X/315G24-37Z4M
带集成放大位置反馈比例溢流阀 DBETBEX
0811402072 DBETBEX-1X/80G24K31A1M
0811402071 DBETBEX-1X/180G24K31A1M
0811402073 DBETBEX-1X/250G24K31A1M
0811402070 DBETBEX-1X/310G24K31A1M
0811402140 DBETBEX-1X/80G24K31F1M
0811402075 DBETBEX-1X/180G24K31F1M
0811402141 DBETBEX-1X/315G24K31F1M
比例溢流阀DBETX
0811402036 DBETX-10/50G24-8NZ4M
0811402018 DBETX-10/80G24-8NZ4M
0811402017 DBETX-10/180G24-8NZ4M
0811402019 DBETX-10/250G24-8NZ4M
0811402016 DBETX-10/315G24-8NZ4M
0811402034 DBETX-10/50G24-25NZ4M
0811402030 DBETX-10/80G24-25NZ4M
0811402031 DBETX-10/180G24-25NZ4M
0811402035 DBETX-10/250G24-25NZ4M
0811402032 DBETX-10/315G24-25Z4M
比例溢流阀DBEP DBET DBETE
R901000842 DBET-6X/50G24K4V
R901000845 DBET-6X/100G24K4V
R901000846 DBET-6X/200G24K4V
R901000847 DBET-6X/315G24K4V
R901000848 DBET-6X/350G24K4V
R901029966 DBETE-6X/50G24K31A1V
R901029967 DBETE-6X/100G24K31A1V
R901029968 DBETE-6X/200G24K31A1V
R901029969 DBETB-6X/315G24K31A1V
R901029970 DBETB-6X/350G24K31A1V
比例溢流阀DBETR
R900954438 DBETR-1X/30G24K4M
R900334966 DBETR-1X/80G24K4M
R900491698 DBETR-1X/180G24K4M
R900370146 DBETR-1X/230G24K4M
R900485944 DBETR-1X/315G24K4M
R900352424 DBETR-1X/350G24K4M
0811402013 DBETBX-1X/28G24-37Z4M
0811402003 DBETBX-1X/180G24-37Z4M
0811402004 DBETBX-1X/315G24-37Z4M
带集成放大位置反馈比例溢流阀 DBETBEX
0811402072 DBETBEX-1X/80G24K31A1M
0811402071 DBETBEX-1X/180G24K31A1M
0811402073 DBETBEX-1X/250G24K31A1M
0811402070 DBETBEX-1X/310G24K31A1M
0811402140 DBETBEX-1X/80G24K31F1M
0811402075 DBETBEX-1X/180G24K31F1M
0811402141 DBETBEX-1X/315G24K31F1M
比例溢流阀DBETX
0811402036 DBETX-10/50G24-8NZ4M
0811402018 DBETX-10/80G24-8NZ4M
0811402017 DBETX-10/180G24-8NZ4M
0811402019 DBETX-10/250G24-8NZ4M
0811402016 DBETX-10/315G24-8NZ4M
0811402034 DBETX-10/50G24-25NZ4M
0811402030 DBETX-10/80G24-25NZ4M
0811402031 DBETX-10/180G24-25NZ4M
0811402035 DBETX-10/250G24-25NZ4M
0811402032 DBETX-10/315G24-25Z4M
比例溢流阀DBEP DBET DBETE
R901000842 DBET-6X/50G24K4V
R901000845 DBET-6X/100G24K4V
R901000846 DBET-6X/200G24K4V
R901000847 DBET-6X/315G24K4V
R901000848 DBET-6X/350G24K4V
R901029966 DBETE-6X/50G24K31A1V
R901029967 DBETE-6X/100G24K31A1V
R901029968 DBETE-6X/200G24K31A1V
R901029969 DBETB-6X/315G24K31A1V
R901029970 DBETB-6X/350G24K31A1V
比例溢流阀DBETR
R900954438 DBETR-1X/30G24K4M
R900334966 DBETR-1X/80G24K4M
R900491698 DBETR-1X/180G24K4M
R900370146 DBETR-1X/230G24K4M
R900485944 DBETR-1X/315G24K4M
R900352424 DBETR-1X/350G24K4M
DBETBX-1X/28G24-37Z4
DBETX-10/50G24-8NZ4M
DBETBX-1X/180G24-37Z