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REXROTH力士乐插装阀盖板LFA25GWA-7X/P10   REXROTH力士乐液压阀   REXROTH力士乐换向阀

插装阀和其阀孔的设计通用性的重要性在于大批量生产。就某一种规格的插装阀为例，为了批量生产，其阀口的尺寸是统一的。此外，不同功能的阀可采用同一规格阀腔，例如：单向阀、锥阀、流量调节阀、节流阀、两位电磁阀等等。如果同一规格、不同功能的阀无法采用不同阀体，那么阀块的加工成本势必增加，插装阀的优势就不复存在。
插装阀在流体控制功能的领域的使用种类比较广泛，已应用的元件有是电磁换向阀，单向阀，溢流阀，减压阀，流量控制阀和顺序阀。通用性在流体动力回路设计和机械实用性的延伸，充分展示了插装阀对系统设计者和应用者的重要性。由于其装配过程的通用性、阀孔规格的通用性、互换性的特点，使用插装阀完全可以实现完善的设计配置，也使插装阀广泛地应用于各种液压机械。
体积小、成本低

批量生产的对用户益处在阀块还未装配线终点时就已显现。采用插装阀设计的整套控制系统可为用户大大减少制造工时；该控制系统的每个元件在组装成集成阀块前就可进行独立测试；集成块在发给用户之前就可进行整体测试。
由于必须安装的元件和连接的管路大大减少，为用户节省大量的制造工时。由于系统污染物的减少，泄漏点的减少和装配错误的降低，使可靠性显著提高。插装阀的应用实现了系统的高效、方便。
以轮式装载机为例，采用插装阀集成块来代替故障不断、难以诊断和维修的动力传动控制装置。原有控制系统有60多个连接管件和19个独立元件。用来替代的整体特制集成块上只有11个管件和17个元件。体积为12 x 4 x 5立方英寸，是原系统所占空间的20%。采用插装阀的特点如下：
减少安装时间 减少泄漏点 减少易污染源 减少维修时间（因为插装阀无需取下管接头配件即可更换）
功能全、应用广泛

插装阀已经广泛应用于多种工程机械、物料搬运机械和农业机械。在常被忽视的工业领域中，插装阀的应用在不断的扩大。特别是在许多重量和空间的限制的场合中，传统工业液压阀束手无策，而插装阀却大显身手。在某些应用场合，插装阀是提高生产力和竞争力的唯一选择
新型插装阀的功能正不断被开发出来。这些新开发成果将保证将来可持续的生产效益。过去的经验证明：想象力的贫乏是采用插装阀实现生产既期效益的唯一限制。
插装阀单元的工作状态 记油口A、B、x的压力分别为pA、pB、px， 作用面积分别为AA、AB、Ax， 阀芯上端复位弹簧力为Ft ， 当 pxAx + Ft >pAAA + pBAB 时 阀口关闭 ； 当 pxAx + Ft ≤ pAAA+ pBAB 时 阀口开启。
实际工作时，阀芯的受力状况是通过油口x的通油方式控制的。
X通回油箱，阀口开启；
x与进油口相通，阀口关闭。
改变油口通油方式的阀称为先导阀。
插装阀的应用
三通阀 由两个方向阀组件并联而成，对外形成一个压力油口、一个工作油口和一个回油口。三通插装阀的工作状态数取决于先导换向阀的工作位置数。
四通阀由两个三通阀并联而成
先导阀可以是一个三位四通换向阀，见动画。
先导阀也可以是两个二位四通换向阀或四个二位三通换向阀，见动画。
四通插装阀的工作状态数取决于先导换向阀的工作位置数。

上海韦米机电设备有限公司主营产品:
液压元件：柱塞泵、叶片泵、齿轮泵、马达、截止阀、方向阀、减压阀、流量控制阀、比例阀、伺服阀、插装阀、电液换向阀、电磁阀、电磁球阀、蓄能器、放大版、压力继电器、压力传感器。
气动元件:：气动阀、阀岛、阀组、电磁阀、换向阀、压力调节阀、流量控制阀,止回阀、气缸和驱动装置、压缩空气气源处理单元、真空技术、传感器、气动连接技术,电气连接技术。
电控伺服:：伺服驱动器,伺服电机、PLC模块、I/O模块、框架模块、电源模块、数据接口模块、键相位模块、继电器模块、测速模块、温度模块、显示屏、传感器、探头、前置器、延伸电缆。

以下是本公司常用德国博世REXROTH力士乐旗下进口产品的部分型号：

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