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4WE6J7X/HG24N9K4 WE电磁换向滑阀 德国博世力士乐REXROTH电磁阀 电磁换向阀 ****现货

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4WE6J7X/HG24N9K4 WE电磁换向滑阀

类型:

交流(D,36V或220V或380V)

直流(E,24V或100V )

干式、湿式

交流电磁铁:使用电压为交流110、220、380V。特点是启动力大，不需要专门的电源，吸合、释放快，动作时间约为0.01 ~0.03s。缺点是电源电压下降15%以上，电磁铁吸力明显减小，若衔铁不动作，干式电磁铁会在10~15min (湿式1~1.5h) 后烧坏线圈，且冲击及噪声大，寿命低，允许切换频率为10次1分。

直流电磁铁:使用电压为直流110和24V,工作可靠，吸合释放时间约为0.05~ 0.08s,切换频率般为120次/分，冲击小、体积小、寿命长，但需要专门的直流电源，成本高。

WE型换向阀是由电磁铁控制的滑阀式换向阀，它主要用于控制液体的通断和流动方向。

其结构主要是由阀体、电磁铁、滑阀以及复位弹簧等组成。在不通电的情况下被复位弹簧保持在中间位置或初始位置上(脉冲阀除外)。电磁铁的推力通过推杆作用在滑阀上，并且把它从静止位置推到工作位置上(终端位置)，由此改变了液流的方向P→A和B→T或者P→B和A→T。当电磁铁断电后，滑阀被复位弹簧重新推到原来的静止位置上。在电磁铁断电时，用故障检查按钮推动滑阀移动。

插头/插座有问题：

故障现象：

如果电磁阀是有插头/插座的那种，有可能出现插座的金属片问题（笔者就碰到过）、插头上接线的问题（比如将电源线接到接地线上去了）等原因无法将电源送到线圈中。较好养成一个习惯：插头插在插座上之后把固定螺丝拧上，线圈上在阀芯杆之后把固定螺母拧上。

如果电磁阀线圈的插头配备有发光二极管电源指示灯，那么采用DC电源驱动电磁阀时即行就要接对，否则指示灯不会亮。另外，不要将不同电压等级的带发光二级管电源指示的电源插头调换使用，这样会导致发光二极管被烧毁/电源（换用低电压等级的插头）出现短路或发光二极管发光很微弱（换用高电压等级的插头）。

如果不带电源指示灯，电磁阀线圈是不用区分极性的（不象线圈电压为直流的晶体管时间继电器以及线圈上并联有二极管/电阻泄漏回路的线圈电压为直流的中间继电器<这种中间继电器以****小日本的居多>，需要区分极性）。

处理方法：修正接线错误、修复或更换插头、插座。

4WE6J7X/HG24N9K4 WE电磁换向滑阀

WE 型方向阀是电磁控制的方向滑阀，可用作电磁元件。它们控制流的开始、停止和方向。

换向阀主要由外壳 (1)、一个或两个电磁铁 (2)、控制阀芯 (3) 和复位弹簧 (4) 组成。

在断电状态下，控制阀芯 (3) 被复位弹簧 (4) 保持在中间或初始位置（“O”型除外）。

当油中开关的电磁铁 (2) 通电时，控制阀芯 (3) 从其静止位置移动到所需的终端位置。这会根据所选符号释放所需的流向。

关闭电磁铁 (2) 后，控制阀芯 (3) 被推回中间或初始位置（带止动器“OF”的阀门和不带“O”型弹簧的阀门除外）。

辅助驱动器 (5) 可以在没有磁铁供应的情况下手动切换阀门。

液压系统必须正确通风以确保正常工作。

 

无弹簧复位“O”（仅适用于符号 A、C 和 D）

该版本是一个方向阀，带有两个开关位置和两个不带棘爪的电磁铁。控制阀芯 (3) 上没有弹簧复位的阀门在断电时没有确定的基本位置。

 

无弹簧复位，带定位设备“OF”（仅适用于符号 A、C 和 D）

该版本是一个方向阀，带有两个开关位置和两个带棘爪的电磁铁。控制阀芯 (3) 通过棘爪固定在相应的开关位置。在运行期间，因此可以省略对电磁体的较好电流供应，这有助于节能运行。

 

版本“.73...A12”（软开关行为）

控制阀芯和电磁阀的组合较大地减少了阀门打开或关闭时发生的切换冲程次数。作为加速度值 a 测量的开关行程可以减少大约 85 % 与标准阀相比，取决于控制阀芯的版本（参见“加速度值”）。

 

注意事项：

通向两个或多个阀门的泄油管路中的压力峰值可能会导致带有棘爪的版本中的控制阀芯意外移动。建议铺设单独的回流管路或在排放管路中安装止回阀。

由于设计原理，阀门会发生内部泄漏，在使用寿命期间会增加。

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旋启式止回阀的阀瓣绕转轴作旋转运动。其流体阻力一般小于升降式止回阀，它适用于较大口径的场合。旋启式止回阀根据阀瓣的数目可分为单瓣旋启式、双瓣旋启式及多瓣旋启式三种。单瓣旋启式止回阀一般适用于中等口径的场合。大口径管路选用单瓣旋启式止回阀时，为减少水锤压力，较好采用能减小水锤压力的缓闭止回阀。双瓣旋启式止回阀适用于大中口径管路。对夹双瓣旋启式止回阀结构小、重量轻，是一种发展较快的止回阀；多瓣旋启式止回阀适用于大口径管路。