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  • REXROTH电磁阀
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4WEH22E76/6EW230N9TK4电液换向阀

发布日期：2024-09-30 09:26:48 来源：13524125780手机微信 作者：上海韦米

4WEH22E76/6EW230N9TK4电液换向阀 德国进口博世力士乐REXROTH电磁阀 电液换向阀

库存现货力士乐液压元件: 柱塞泵A10VSO、电磁阀4WE、电磁阀3WE、溢流阀DBW、DBDS、DB、3DR、节流阀Z2S、Z2F、叶片泵PV7、PVV、齿轮泵PH2,PH4,PGF、HM20/HM17压力传感器、压力继电器HED、博世放大器、放大板 、阀0811、0820 、齿轮泵0510、减压阀DR、ZDR、4WREE,马达伺服驱动 电机等系列产品

4WEH22E76/6EW230N9TK4电液换向阀

电液换向阀

电液换向阀是用控制油路中的压力油推动阀芯，变换流体流动方向的控制阀

电液换向阀是电磁换向阀和液控换向阀的组合，它是用电磁换向阀控制液控换向阀的动作，变换流体流动方向的控制阀。

电液换向阀和液控换向阀主要用在流量超过电磁换向阀正常工作允许范围的液压系统中，对执行元件的动作进行控制，或对油液的流动方向进行控制。

说明事项

1.产品可任意安装，优先考虑水平位置。

2.液压系统所用介质必c须过滤，过滤精度至少20μm。

3.固定螺钉请按样本中所列参数选用。

4.与阀连接的表面，粗糙度要求Ra0.8，平面度要求0.01/100mm

工作原理：。。当两个电磁阀线圈通电时，平衡孔回路关闭，泄流孔回路打开，活塞上腔泄压，活塞上行，阀门打开。反之，活塞下行，阀门关闭。在阀门开启和关闭过程中，可将流量（流速）信号及阀塞位置信号传送给计算机，经过计算机处理后发出相应的指令，控制两个电磁导阀的通、断电状态，使活塞的上下腔的液压差产生变化，从而将活塞控制在所需的开启高度上，实现对管道介质流量的控制。

4WEH22E76/6EW230N9TK4电液换向阀

4WEH..型方向阀

型号4WEH..型方向阀WEH型方向阀是-种电液操作的方向滑阀。它们用于控制液流的开启、停止和方向。

此类阀组成主要包括阀体( 1 )主控制阀芯(2 )一个或两个复位弹簧( 3.1 )和(3.2 ),带一个或两个电磁铁:电磁铁"a” (5.1 ),电磁铁"b" (5.2 )的先导阀(4)。

主阀阀芯由弹簧或液压力保持在中位或初始位置。在初始位置, 两个弹簧腔( 6 )和( 8 )通过先导阀无压的油箱连通。经过控制油路(7 )向先导阀(4)供油。控制泊可以由内部或外部供给( 外部供给油口X )当先导阀操作时,如电磁铁"a”得电,先导滑阀(10)向左移动,因此弹簧腔(8)获得先导油压力而弹簧腔(6)保持无压状态。

先导压力施压于主阀芯的左端, 并克服弹簧力( 3.1),其结果,主阀的P至B和A至T被接通。当电磁铁断电,先导阀回复至初始位置(带定位机构滑阀除外),弹簧腔( 8 )向油箱卸荷。

控制油从弹簧腔经先导阀排入Y口。控制油可内部或外部供油和回油外部经油口Y )可选择的应急手动操作( 9 ),在电磁铁不通电情况下,可对先导滑阀( 10 )进行操作。

4WEH22E76/6EW230N9TK4电液换向阀型号

力士乐REXROTH二位四通和三位四通方向阀，内部先导式，外部先导式Z4WH 22

R900501680 Z4WH22E63-5X/

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力士乐REXROTH二位四通和三位四通方向阀，内部先导式，外部先导式Z4WEH 22

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R900778750 Z4WEH22E63-5X/6EW230N9ETK4/B10

R900945250 Z4WEH22E63-5X/6EW230N9ETS2K4/B10D3

R900786895 Z4WEH22E63-5X/6EW230N9ETS2K4/B10D3V

R900918161 Z4WEH22E63-5X/6EW230N9ETZ4

单向阀是流体只能沿进水口流动，出水口介质却无法回流，俗称单向阀。单向阀又称止回阀或逆止阀。用于液压系统中防止油流反向流动,或者用于气动系统中防止压缩空气逆向流动。单向阀有直通式和直角式两种。直通式单向阀用螺纹连接安装在管路上。直角式单向阀有螺纹连接、板式连接和法兰连接三种形式。

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