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REXROTH液(ye)控(kong)(kong)單(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)是依靠控(kong)(kong)制(zhi)流(liu)體(ti)壓(ya)(ya)力(li),可以使(shi)(shi)單(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)反向(xiang)(xiang)(xiang)(xiang)流(liu)通的(de)閥(fa)(fa)(fa)。這種(zhong)閥(fa)(fa)(fa)在煤礦(kuang)機械的(de)液(ye)壓(ya)(ya)支(zhi)護設備中占(zhan)有較重要的(de)地(di)位。力(li)士樂REXROTH液(ye)控(kong)(kong)單(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)與普通單(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)不同之處是多了-一(yi)個控(kong)(kong)制(zhi)油(you)(you)路K ,當控(kong)(kong)制(zhi)油(you)(you)路未接(jie)通壓(ya)(ya)力(li)油(you)(you)液(ye)時(shi)(shi),液(ye)控(kong)(kong)單(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)就象普通單(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)一(yi)-樣工作,壓(ya)(ya)力(li)油(you)(you)只從進(jin)(jin)(jin)油(you)(you)口(kou)流(liu)向(xiang)(xiang)(xiang)(xiang)出(chu)油(you)(you)口(kou),不能反向(xiang)(xiang)(xiang)(xiang)流(liu)動(dong)(dong)。當控(kong)(kong)制(zhi)油(you)(you)路油(you)(you)控(kong)(kong)制(zhi)壓(ya)(ya)力(li)輸入時(shi)(shi),活塞頂(ding)桿在壓(ya)(ya)力(li)油(you)(you)作用(yong)下(xia)向(xiang)(xiang)(xiang)(xiang)右移動(dong)(dong),用(yong)頂(ding)桿頂(ding)開單(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa),使(shi)(shi)進(jin)(jin)(jin)出(chu)油(you)(you)口(kou)通。若(ruo)出(chu)油(you)(you)口(kou)大于(yu)進(jin)(jin)(jin)油(you)(you)口(kou)就能使(shi)(shi)油(you)(you)液(ye)反向(xiang)(xiang)(xiang)(xiang)流(liu)動(dong)(dong)。

REXROTH比(bi)例方(fang)向閥(fa)在(zai)(zai)液(ye)路系(xi)統中(zhong)用來實現液(ye)路的(de)(de)通(tong)(tong)(tong)斷或液(ye)流方(fang)向的(de)(de)改變，它一(yi)(yi)般(ban)具有(you)一(yi)(yi)個可以在(zai)(zai)線圈電(dian)磁(ci)(ci)力(li)驅(qu)動下滑動的(de)(de)閥(fa)芯(xin)，閥(fa)芯(xin)在(zai)(zai)不(bu)同(tong)的(de)(de)位(wei)置(zhi)(zhi)(zhi)時，電(dian)磁(ci)(ci)閥(fa)的(de)(de)通(tong)(tong)(tong)路也就(jiu)不(bu)同(tong)。閥(fa)芯(xin)的(de)(de)工作位(wei)置(zhi)(zhi)(zhi)有(you)幾個，該(gai)電(dian)磁(ci)(ci)閥(fa)就(jiu)叫(jiao)幾位(wei)電(dian)磁(ci)(ci)閥(fa)：閥(fa)體上的(de)(de)接(jie)(jie)(jie)口(kou)，也就(jiu)是(shi)電(dian)磁(ci)(ci)閥(fa)的(de)(de)通(tong)(tong)(tong)路數，有(you)幾個通(tong)(tong)(tong)路口(kou)，該(gai)電(dian)磁(ci)(ci)閥(fa)就(jiu)叫(jiao)幾通(tong)(tong)(tong)電(dian)磁(ci)(ci)閥(fa)。 電(dian)磁(ci)(ci)閥(fa)安裝后，一(yi)(yi)般(ban)所有(you)接(jie)(jie)(jie)口(kou)都(dou)應該(gai)是(shi)連接(jie)(jie)(jie)好了的(de)(de)，所謂工作位(wei)置(zhi)(zhi)(zhi)指的(de)(de)是(shi)閥(fa)芯(xin)的(de)(de)位(wei)置(zhi)(zhi)(zhi)。閥(fa)芯(xin)在(zai)(zai)線圈不(bu)通(tong)(tong)(tong)電(dian)時處在(zai)(zai)甲位(wei)置(zhi)(zhi)(zhi)，在(zai)(zai)線圈通(tong)(tong)(tong)電(dian)時處在(zai)(zai)乙(yi)位(wei)置(zhi)(zhi)(zhi)，閥(fa)芯(xin)在(zai)(zai)不(bu)同(tong)位(wei)置(zhi)(zhi)(zhi)時，對各接(jie)(jie)(jie)口(kou)起到(dao)或接(jie)(jie)(jie)通(tong)(tong)(tong)或封閉的(de)(de)作用。
REXROTH比例方向(xiang)閥(fa)二(er)位(wei)是指電磁(ci)(ci)閥(fa)的閥(fa)芯有兩個不(bu)同的工作(zuo)位(wei)置（開、關）。 電磁(ci)(ci)閥(fa)二(er)通(tong)(tong)(tong)(tong)、三通(tong)(tong)(tong)(tong)指電磁(ci)(ci)閥(fa)的閥(fa)體上有兩個、三個通(tong)(tong)(tong)(tong)道(dao)(dao)口(kou)； 比如二(er)位(wei)二(er)通(tong)(tong)(tong)(tong)電磁(ci)(ci)閥(fa)是一(yi)(yi)(yi)(yi)進(jin)(jin)一(yi)(yi)(yi)(yi)出(chu)(chu)（二(er)個通(tong)(tong)(tong)(tong)道(dao)(dao)、zui普通(tong)(tong)(tong)(tong)常(chang)(chang)見） 二(er)位(wei)三通(tong)(tong)(tong)(tong)電磁(ci)(ci)閥(fa)控制(zhi)液體是一(yi)(yi)(yi)(yi)進(jin)(jin)二(er)出(chu)(chu)（兩出(chu)(chu)分別是一(yi)(yi)(yi)(yi)個常(chang)(chang)開一(yi)(yi)(yi)(yi)個常(chang)(chang)閉(bi)）；氣動換向(xiang)電磁(ci)(ci)閥(fa)是一(yi)(yi)(yi)(yi)進(jin)(jin)一(yi)(yi)(yi)(yi)出(chu)(chu)一(yi)(yi)(yi)(yi)排氣；液壓一(yi)(yi)(yi)(yi)進(jin)(jin)一(yi)(yi)(yi)(yi)出(chu)(chu)一(yi)(yi)(yi)(yi)回油。
REXROTH比例方(fang)向(xiang)閥從原理上(shang)分為三大類（即：直(zhi)(zhi)動(dong)式、分步直(zhi)(zhi)動(dong)式、先導(dao)式），而從閥瓣結(jie)構(gou)和材料上(shang)的不同與(yu)原理上(shang)的區別又分為六個分支(zhi)小類（直(zhi)(zhi)動(dong)膜片(pian)結(jie)構(gou)、分步重片(pian)結(jie)構(gou)、先導(dao)膜式結(jie)構(gou)、直(zhi)(zhi)動(dong)活塞(sai)結(jie)構(gou)、分步直(zhi)(zhi)動(dong)活塞(sai)結(jie)構(gou)、先導(dao)活塞(sai)結(jie)構(gou)）。

力士樂方向閥4WRAE10W60-2X/G24K31/F1V該閥門基本上包括：

1、與連接表面的房屋
2、帶壓縮彈簧（3和4）的控制閥芯 
3、帶中心螺紋的螺線管
4、集成電子產品 

常供型號有:

4WREE6V1-08-2X/G24K31/A1V4WREE

6 W16-2XIG24K31/F1V

4WRPEH 6 C5 B24L-2X/G24K0/F1M

1WRKE 10 E50L-3X6EG24EK31/F

1D3M4WRKE 10 E100L-3X/6EG24EK31/F

1D3M4WRKE 10 W6-50L-3X16EG24EK31/F1D3M4WRKE

10 W8-50L-3X16EG24EK31/F1D3M4WRKE

10 W8-100L-3X/6EG24EK31/F1D3M4WRKE

16 W8-200L-3X/6EG24EK31/F 1D3M4WRKE

16 W8-200L-33/6EG24ETK31/F1D3M