*德國Rexroth力士樂比例伺服閥產品信息

    力士樂比例伺服閥 比例閥 閥對流量的控制可以分為兩種：一(yi)種是(shi)(shi)開關控(kong)制(zhi)：要(yao)么全開、要(yao)么全關，流(liu)(liu)(liu)量要(yao)么zui大(da)(da)、要(yao)么zui小(xiao)，沒有(you)(you)中間(jian)狀(zhuang)態(tai)，如(ru)普通的(de)(de)(de)(de)(de)電(dian)(dian)磁直通閥(fa)(fa)、電(dian)(dian)磁換(huan)向閥(fa)(fa)、電(dian)(dian)液換(huan)向閥(fa)(fa)。另一(yi)種是(shi)(shi)連續控(kong)制(zhi)：閥(fa)(fa)口可(ke)以(yi)根據需要(yao)打開任意一(yi)個開度，由此控(kong)制(zhi)通過流(liu)(liu)(liu)量的(de)(de)(de)(de)(de)大(da)(da)小(xiao)，這類閥(fa)(fa)有(you)(you)手動控(kong)制(zhi)的(de)(de)(de)(de)(de)，如(ru)節(jie)流(liu)(liu)(liu)閥(fa)(fa)，也有(you)(you)電(dian)(dian)控(kong)的(de)(de)(de)(de)(de)，如(ru)比例(li)閥(fa)(fa)、伺服閥(fa)(fa)。所以(yi)使用比例(li)閥(fa)(fa)或伺服閥(fa)(fa)的(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)就(jiu)是(shi)(shi)：以(yi)電(dian)(dian)控(kong)方(fang)式(shi)實(shi)現對流(liu)(liu)(liu)量的(de)(de)(de)(de)(de)節(jie)流(liu)(liu)(liu)控(kong)制(zhi)（當然經過結構(gou)上的(de)(de)(de)(de)(de)改動也可(ke)實(shi)現壓力(li)控(kong)制(zhi)等(deng)），既然是(shi)(shi)節(jie)流(liu)(liu)(liu)控(kong)制(zhi)，就(jiu)必(bi)然有(you)(you)能(neng)量損(sun)失(shi)，伺服閥(fa)(fa)和其它(ta)閥(fa)(fa)不同的(de)(de)(de)(de)(de)是(shi)(shi)，它(ta)的(de)(de)(de)(de)(de)能(neng)量損(sun)失(shi)更(geng)大(da)(da)一(yi)些，因為它(ta)需要(yao)一(yi)定的(de)(de)(de)(de)(de)流(liu)(liu)(liu)量來維持前置級控(kong)制(zhi)油(you)路的(de)(de)(de)(de)(de)工作。

   產品結構圖：

*德國Rexroth力士樂比例伺服閥產品信息

產品型號：

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*德國Rexroth力士樂比例伺服閥產品信息

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