低价库存0811402055 DRE6X-1X/175MG24-8NZ4M力士乐比例阀
0811402055 DRE6X-1X/175MG24-8NZ4M原装力士乐
低价库存0811402055 DRE6X-1X/175MG24-8NZ4M力士乐比例阀
公司名称：上海宓泰液压技术有限公司
电话：021-39526511
传真：021-39526511
邮箱：shmitai@163.com
qq:2074161691 手机：15601976759(与微信同号）
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: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。
低价库存0811402055 DRE6X-1X/175MG24-8NZ4M力士乐比例阀
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