R901411345 DBETE-6X/420G24K31F1M 力士乐比例阀

上海韦米机电设备有限公司经销力士乐Rexroth节流阀：REXROTH单向力士乐节流阀、力士乐6通经 10通经单向节流阀、力士乐(BOSCH_REXROTH)DR系列单向节流阀、力士乐(BOSCH-REXROTH)SV系列单向节流阀、力士乐Rexroth双单向节流阀、力士乐REXROTH叠加单向节流阀、力士乐Rexroth叠式节流阀、力士乐Rexroth液控节流阀Z2S系列、力士乐rexroth节流阀、力士乐单向节流阀，rexroth单向阀、力士乐单向节流阀、力士乐带集成放大器比例节流阀rexroth、力士乐节流阀，rexroth节流阀、力士乐节流阀、博世力士乐rexroth 二通比例节流阀、博世力士乐rexroth单向节流阀、博世力士乐rexroth节流阀F6型、博世力士乐rexroth节流阀 单向阀、博世力士乐叠加式节流阀 两路节流单向阀、博世力士乐节流阀、叠加式双单向节流阀、德国力士乐REXROTH(液压阀)单向节流阀、比例节流阀、节流和单向节流阀、力士乐节流阀
比例阀常见故障及诊断排除
对于一般的电液比例阀，阀的主体结构组成及特点与传统液压阀相差无几，因此这部分的常见故障及诊断排除方法可以参看前述控制阀故障诊断与排除。而其电气—机械转换器部分的常见故障及诊断排除方法可以参看产品说明书。
放大器接线错误或使用电压过高烧坏放大器；电气插头与阀连接不牢；由于使用不当，致使电流过大烧坏电磁铁；或电流太小驱动力不够；比例阀安装方向错误，进出油口不在安装底板的正确位置，或底板加工精度差，底面渗油；油液污染时阀芯卡死；杂质磨损零件使内泄漏增加。
排除方法：
1）正确接线、控制工作电压在放大器的范围内；
2）进一步牢固连接或换；
3）正确使用、合理选择、或在电磁铁输入电路中增加限电流元件
4）正确安装、处理安装面和密封件
5）充分过滤或换液压油、对磨损零件进行配磨或换。
力士乐REXROTH比例方向阀，先导式，带整体电子放大版（OBE）和电气位置反馈4WRKE
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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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0811402020 DBETFX-1X/315G24-27NZ4M
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0811402016 DBETX-1X/315G24-8NZ4M
0811402015 DBETBX-1X/80G24-16Z4M
0811402014 DBETBX-1X/230G24-16Z4M
0811402013 DBETBX-1X/28G24-37Z4M
0811402011 DBETBX-1X/25G24-16Z4M

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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电气比例阀作为传统的气压和流量控制部件，可分伺服阀、比例阀和调整开关电磁阀三类，这些阀门应用于压力和流量的控制具有不同的特性，压力控制精度和稳定性也不相同。
开关电磁阀型电气比例阀由于使用了调整开关电磁阀，控制上使用了PWM脉冲调制，使其能够达到很高的控制精度，在印刷行业具有广泛的应用。
电气比例阀一种是开关控制：要么全开要么全闭，或小流量，无中间状态，如常见的电磁直通阀、电磁换向阀、电液换向阀等。另一种是连续控制：阀口可根据需要任意开启，以控制流量。这些阀门是手动控制的，如节流阀，也是电控的，如比例阀和伺服阀。
电气伺服阀的主阀是类似换向阀的滑阀结构，只是阀芯的换向不是由电磁铁驱动，而是由前级阀输出的液压驱动，类似于电液换向阀，只是电液换向阀的前级阀是电磁换向阀，而伺服阀的前级阀是动态特性较好的喷嘴挡板阀或喷管阀。比例阀的主阀由前级阀的输出压力控制，前级阀的压力来自伺服阀的P。如果压力端口的压力不足，前级阀无法输出足够的压力来推动主滑阀移动。
力士乐REXROTH比例减压阀，直接操作
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力士乐REXROTH减压阀，直接操作，直流电动机操作DBGT
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力士乐REXROTH比例溢流阀，直接操作，上升特性曲线KBPS.8A
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