0811402006 DBETBX-1X/180G24-16K4M 力士乐比例阀

上海韦米机电设备有限公司经销代理博世力士乐（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 美国伊顿威格士VICKERS泵阀 日本大金DAIKIN电磁阀 美国艾尔泰克电磁阀 美国阿泰克电磁阀  等系列进口产品
阀对流量的控制可以分为两种：
一种是开关控制：要么全开、要么全关，流量要么大、要么小，没有中间状态，如普通的电磁直通阀、电磁换向阀、电液换向阀。
另一种是连续控制：阀口可以根据需要打开任意一个开度，由此控制通过流量的大小，这类阀有手动控制的，如节流阀，也有电控的，如比例阀、伺服阀。
所以使用比例阀或伺服阀的目的是：以电控方式实现对流量的节流控制（当然经过结构上的改动也可实现压力控制等），既然是节流控制，必然有能量损失，伺服阀和其它阀不同的是，它的能量损失大一些，因为它需要一定的流量来维持前置级控制油路的工作。
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力士乐REXROTH比例溢流阀，直接操作，递减特性曲线KBPS.8B
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比例阀是一种借助于给电磁铁输入模拟信号的方法产生比例磁力来控制阀芯的位置，对流量或压力进行按比例控制的液压元件。
比例阀由直流比例电磁铁与液压阀两部分组成，比例阀实现连续控制的核心是采用了比例电磁铁，比例电磁铁种类繁多，但工作原理基本相同，它们都是根据比例阀的控制需要开发出来的。
比例阀与普通液压元件相比，有如下特点：
1、电信号便于传递，能简单地实现远距离控制；
2、能连续、按比例地控制液压系统的压力和流量，实现对执行机构的位置、速度、力量的控制，并能减少压力变换时的冲击；
3、减少了元件数量，简化了油路，同时电液比例阀的使用条件和保养与一 般液压元件相同，比伺服阀的抗污染性能强，工作可靠。
力士乐REXROTH比例压力溢流阀，直动式，不带集成电子（OBE）DBET
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相关事项
安装比例阀前应仔细阅读生产厂家的产品样本等技术资料，详细了解使用安装条件和注意事项；
比例阀应正确安装在连接底板上，注意不要损坏或漏装密封件，连接板平整、光洁，固定螺栓时用力均匀；
放大器与比例阀配套使用，放大器接线要仔细，不要误接；
油液进入比例阀前，经过滤精度20微米以下的过滤器过滤，油箱密封并加空气滤清器，使用前对比例系统要经过充分清洗、过滤。
比例阀的零位、增益调节均设置在放大器上。比例阀工作时，要先启动液压系统，然后施加控制信号；
注意比例阀的泄油口要单回油箱。
力士乐REXROTH溢流阀，底板安装，插装式，螺纹连接DBD
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力士乐REXROTH比例压力溢流阀，直动式，位置反馈（LVDT交流/交流）DBETBX
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