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TOYOOKI電磁換向閥優點：
動(dong)作(zuo)準確、自(zi)動(dong)化程(cheng)度(du)高、工作(zuo)穩定可靠，但需附設驅動(dong)和(he)冷卻系統，結構(gou)較為(wei)復雜；閥瓣式(shi)結構(gou)則較簡單，多用于流量(liang)較小的生產工藝上。
在石油(you)、化工、礦(kuang)山和(he)冶金等行業中(zhong)(zhong)，六通換向閥(fa)(fa)(fa)是(shi)一(yi)種重要的流體(ti)換向設備。該閥(fa)(fa)(fa)安裝在稀油(you)潤滑系統輸送潤滑油(you)的管道中(zhong)(zhong)。通過變換密封組件在閥(fa)(fa)(fa)體(ti)中(zhong)(zhong)的相對位置，使閥(fa)(fa)(fa)體(ti)各通道連通或斷開(kai)，從而控制流體(ti)的換向和(he)啟停。

 豐興換向閥分為常(chang)閉(bi)(bi)和常(chang)開二種;一(yi)(yi)(yi)般選用(yong)(yong)(yong)(yong)(yong)常(chang)閉(bi)(bi)型(xing),通(tong)電(dian)(dian)打(da)開,斷(duan)電(dian)(dian)關(guan)(guan)閉(bi)(bi);但在開啟時(shi)(shi)(shi)(shi)間很(hen)長關(guan)(guan)閉(bi)(bi)時(shi)(shi)(shi)(shi)很(hen)短時(shi)(shi)(shi)(shi)要(yao)選用(yong)(yong)(yong)(yong)(yong)常(chang)開型(xing)了. 壽(shou)命試(shi)驗,工廠(chang)一(yi)(yi)(yi)般屬于型(xing)式試(shi)驗項目,確切地說我國還沒(mei)有(you)電(dian)(dian)磁(ci) 閥的(de)專業標準,因此選用(yong)(yong)(yong)(yong)(yong)電(dian)(dian)磁(ci)閥廠(chang)家(jia)時(shi)(shi)(shi)(shi)慎(shen)重(zhong). 動(dong)作(zuo)時(shi)(shi)(shi)(shi)間很(hen)短頻(pin)率較高(gao)時(shi)(shi)(shi)(shi)一(yi)(yi)(yi)般選取直動(dong)式,大口(kou)徑選用(yong)(yong)(yong)(yong)(yong)快速系列. 三,安(an)全性 一(yi)(yi)(yi)般電(dian)(dian)磁(ci)閥不防(fang)水(shui), 在條件不允許時(shi)(shi)(shi)(shi)請選用(yong)(yong)(yong)(yong)(yong)防(fang)水(shui)型(xing), 工廠(chang)可(ke)以(yi)定做(zuo). 電(dian)(dian)磁(ci)閥的(de)zui高(gao)標定公(gong)稱壓(ya)力(li)(li)一(yi)(yi)(yi)定要(yao)超過管路內的(de)zui高(gao)壓(ya)力(li)(li),否則使 用(yong)(yong)(yong)(yong)(yong)壽(shou)命會縮短或產生其它意外情況. 有(you)腐蝕(shi)性液(ye)體的(de)應(ying)選用(yong)(yong)(yong)(yong)(yong)全不銹鋼型(xing),強(qiang)腐蝕(shi)性流體宜選用(yong)(yong)(yong)(yong)(yong)塑料王 （SLF）電(dian)(dian)磁(ci)閥. 爆炸性環境必須選用(yong)(yong)(yong)(yong)(yong)相應(ying)的(de)防(fang)爆產品. 四,經濟性 有(you)很(hen)多電(dian)(dian)磁(ci)閥可(ke)以(yi)通(tong)用(yong)(yong)(yong)(yong)(yong),但在能滿足(zu)以(yi)上三點的(de)基礎上應(ying)選用(yong)(yong)(yong)(yong)(yong)的(de)產品.

六通(tong)換(huan)向(xiang)閥(fa)主要(yao)由閥(fa)體(ti)、密(mi)封組(zu)件、凸(tu)輪、閥(fa)桿(gan)、手(shou)柄(bing)和閥(fa)蓋等零部件組(zu)成(圖1)。閥(fa)門由手(shou)柄(bing)驅動(dong)，通(tong)過手(shou)柄(bing)帶動(dong)閥(fa)桿(gan)與(yu)(yu)凸(tu)輪旋(xuan)轉(zhuan)，凸(tu)輪具有定位驅動(dong)與(yu)(yu)鎖定密(mi)封組(zu)件的開啟與(yu)(yu)關閉(bi)功能。手(shou)柄(bing)逆(ni)時針旋(xuan)轉(zhuan)，兩組(zu)密(mi)封組(zu)件分別在凸(tu)輪的作用下關閉(bi)下端(duan)(duan)的兩個通(tong)道(dao)，上端(duan)(duan)的兩個通(tong)道(dao)分別與(yu)(yu)管(guan)道(dao)裝置的進口相通(tong)。反之(zhi)，上端(duan)(duan)的兩個通(tong)道(dao)關閉(bi)，下端(duan)(duan)兩個通(tong)道(dao)與(yu)(yu)管(guan)道(dao)裝置的進口相通(tong)，實(shi)現(xian)了不停車換(huan)向(xiang)。