力士乐比例溢流阀力士乐比例溢流阀主要作用定压溢流作用: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:力士乐溢流阀串联在回油路上，力士乐溢流阀产生背压，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***高工作压力高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)。力士乐比例溢流阀溢流阀一般有两种结构:1、直动型溢流阀。2、先导式溢流阀。对力士乐比例溢流阀溢流阀的主要要求: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。力士乐比例溢流阀样本R900963245DBEC30-3X/315YG24K4R900931821DBEE10-5X/200YG24K31MR900535115DBEE10-5X/315YG24K31MR900974904DBEE10-5X/50YG24NK31MR900731840DBEE20-5X/100YG24K31MR901163997DBEE20-5X/200YG24K31VR900948803DBEE6-1X/100G24K31MR900919359DBEE6-1X/100YG24K31MR900727718DBEE6-1X/100YG24NK31MR900952490DBEE6-1X/200G24K31MR900728050DBEE6-1X/200G24K31VR900954433DBEE6-1X/200YG24K31MR900546986DBEE6-1X/315G24K31MR900940727DBEE6-1X/315G24K31VR900962239DBEE6-1X/315G24NK31MR900546987DBEE6-1X/315YG24K31MR900743106DBEE6-1X/315YG24K31VR900706135DBEE6-1X/350YG24K31MR900972193DBEE6-1X/50G24K31MR900940726DBEE6-1X/50G24K31VR900954432DBEE6-1X/50YG24K31MR900943143DBEM10-5X/100YG24K4MR900965816DBEM10-5X/200XYG24K4MR900941300DBEM10-5X/200XYG24K4M-1R900923238DBEM10-5X/200YG24K4MR900946965DBEM10-5X/200YG24K4M-1R900579448DBEM10-5X/200YG24NK4MR900916245DBEM10-5X/200YG24NK4M-1R900574165DBEM10-5X/315XYG24K4M-1R900547401DBEM10-5X/315YG24K4MR900923190DBEM10-5X/315YG24K4M-1R900705663DBEM10-5X/315YG24K4VR900904645DBEM10-5X/350YG24K4MR900928037DBEM10-5X/50YG24K4MR900916127DBEM20-5X/100YG24K4MR900916128DBEM20-5X/100YG24K4M-1R900941302DBEM20-5X/200XYG24K4M-1R900923239DBEM20-5X/200YG24K4MR900579947DBEM20-5X/200YG24K4M-1R900941260DBEM20-5X/200YG24K4V-1R900916129DBEM20-5X/200YG24NK4MR900727879DBEM20-5X/315XYG24K4MR900962811DBEM20-5X/315XYG24K4M-1R900923241DBEM20-5X/315YG24K4MR900916130DBEM20-5X/315YG24K4M-1R900578827DBEM20-5X/350YG24K4MR900709844DBEM20-5X/350YG24K4VR901114837DBEM20-5X/50YG24K4MR900922698DBEM20-5X/50YG24NK4MR901055517DBEM30G-3X/420YG24K4V-683R900916134DBEM30-3X/100YG24K4MR900916135DBEM30-3X/200XYG24K4MR900921597DBEM30-3X/200YG24K4MR900552114DBEM30-3X/315YG24K4MR900245866DBEM30-3X/350XYG24K4MR900719426DBEM30-3X/50YG24K4MR900954707DBEME10-5X/100YG24K31MR900924513DBEME10-5X/100YG24NK31MR900954708DBEME10-5X/200YG24K31MR900551073DBEME10-5X/200YG24NK31MR900958678DBEME10-5X/315XYG24K31MR900536812DBEME10-5X/315YG24K31MR900941261DBEME10-5X/350YG24K31MR900908585DBEME10-5X/50YG24K31MR900717759DBEME20-5X/100XYG24K31MR900937307DBEME20-5X/100YG24K31MR900954709DBEME20-5X/200YG24K31MR900901375DBEME20-5X/315XYG24K31MR900536813DBEME20-5X/315YG24K31M)