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0532002014插装溢流阀 德国原装博世力士乐REXROTH插装式溢流阀 电磁溢流阀 原装现货 正确产品保证

我公司有经验代理博世力士乐（BOSCH-REXROTH）、阿托斯ATOS、派克Parker、迪普马DUPLOMATIC、油研YUKEN;本特利bentley、贝加莱B&R、西门子、光洋KOYO，美国ASCO，美国PARKER派克 等系列进口产品 

0532002014插装溢流阀

溢流阀是压力控制阀。其作用主要是控制系统压力，以保护油泵和油路系统的安全及保持油路系统的压力恒定。通经为8毫米的溢流阀是一个小型的直接动作的溢流阀，可以和主溢流阀的遥控口连接，对主溢流阀实现远程压力调节。溢流阀的遥控口经换向阀和油箱连接时，可使油路卸荷。此时溢流阀起卸荷作用。溢流阀的遥控口串联换向阀和通经为8毫米的溢流阀时，可实现压力的多级控制。更换溢流阀的调节弹簧，可改变其压力调节范围。手轮顺时针转动时，压力升高。

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。

先导型溢流阀的导阀部分结构尺寸较小，调压弹簧不必很强，因此压力调整比较轻便。但因先导型溢流阀要在先导阀和主阀都动作后才能起控制作用，因此反应不如直动型溢流阀灵敏。

与三节同心结构相比，二节同心结构的特点是：①主阀芯仅与阀套和主阀座有同心度要求，免去了与阀盖的配合，故结构简单，加工和装配方便。②过流面积大，在相同流量的情况下，主阀开启高度小；或者在相同开启高度的情况下，其通流能力大，因此，可做得体积小、重量轻。③主阀芯与阀套可以通用化，便于批量生产。

折弯机是钣金行业工件折弯成形的重要设备，其作用是将钢板根据工艺需要压制成各种形状的零件。如图所示为液压板料折弯机结构示意图，主要由左右立柱、工作台、横梁组成机架，左右油缸固定在立柱上，滑块与油缸的活塞连接、沿固定在立柱上的导轨上下运动，下模固定在工作台上，上模安装在滑块下端，液压系统提供动力，电气系统给出指令，在油缸作用下，滑块带动上模向下与下模闭合实现板料的折弯。左右立柱、工作台和滑块（以下简称三大件）是折弯机的关键零件，三大件的重量之和占一台折弯机总重量的70%~80%。其强度和刚性直接决定机床的运行精度、使用寿命，以及工件的精度。

溢流阀供应型号

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平衡阀的组成主要包括阀体，主阀芯，先导体，控制阀芯，弹簧座和阻尼孔。提升负载时，流动从A到B，使主阀芯打开。如果压力下降（例如由于管子破裂），由于腔通着负载压力，主阀芯立即关闭。下放负载（典型回路）这时流动从B至A。油口A经方向阀通到油箱。足够的油液进入缸的有杆腔以造成所需的速度。油口X处的控制压力与油口B的负载压力之比为1:20。达到控制压力时，主阀芯打开。控制阀芯使先导体升离阀座，而腔经其内孔和油口A向油箱回油。

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0811102177DB20Z4-5X/160XM

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