力士乐溢流阀DBW10A1-5X/200-6EG24N9K4 R900941174现货

REXROTH力士乐电磁溢流阀DBW10A1-5X/200-6EG24N9K4 R900941174 原装我公司主营液压气动元件、工控备件！力士乐溢流阀DBW10A1-5X/200-6EG24N9K4 R900941174现货

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，系统卸荷和保护作用。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。保护作用：系统正常工作时，阀门关闭。只有负载超过规定的（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。

溢流阀的工作原理主要基于压力平衡和机械传动原理，通过外部压力的变化来实现液压系统中流量的调节。以下是详细介绍：

溢流阀主要由阀体、阀芯、弹簧和调节装置组成。阀体上设有进口和出口通道以及溢流口当液压系统的工作压力超过溢流阀设定的压力时，阀芯受到压力作用向上移动，使溢流口从口通道中插入，形成溢流通道，允许流体流出，从而稳定系统压力。当系统压力降低到设定压力范围内时，阀芯在弹簧作用下向下移动，关闭溢流通道，阻止流体继续溢流。先导式溢流阀由先导阀和主阀组成，先导阀控制压力，主阀控制流量。当进口压力超过调压力时，先导阀打开，主阀内油液产生流动，实现溢流。直动式比例溢流阀利用比例电磁铁产生的吸力与弹簧力和系统压力作用在阀芯上的力平衡的

原理来工作。通过调整通入电磁铁的电流大小，可以改变调压阀的调节压力

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力士乐溢流阀DBW10A1-5X/200-6EG24N9K4 R900941174现货