手(shou)(shou)(shou)(shou)(shou)動(dong)(dong)(dong)換(huan)(huan)(huan)(huan)向閥(fa)(fa)的(de)(de)優點主要(yao)包括：操(cao)作簡(jian)(jian)單(dan)：手(shou)(shou)(shou)(shou)(shou)動(dong)(dong)(dong)換(huan)(huan)(huan)(huan)向閥(fa)(fa)的(de)(de)操(cao)作非常簡(jian)(jian)單(dan)，只需(xu)要(yao)通(tong)過手(shou)(shou)(shou)(shou)(shou)柄或(huo)輪盤進(jin)行手(shou)(shou)(shou)(shou)(shou)動(dong)(dong)(dong)控制(zhi)(zhi)，就可(ke)以實(shi)現閥(fa)(fa)芯的(de)(de)移動(dong)(dong)(dong)和換(huan)(huan)(huan)(huan)向。價格(ge)低(di)(di)廉：手(shou)(shou)(shou)(shou)(shou)動(dong)(dong)(dong)換(huan)(huan)(huan)(huan)向閥(fa)(fa)的(de)(de)價格(ge)相對(dui)較低(di)(di)，適(shi)(shi)合(he)一(yi)些小型(xing)或(huo)低(di)(di)成(cheng)本的(de)(de)液壓(ya)(ya)系統(tong)。可(ke)靠性(xing)(xing)高：手(shou)(shou)(shou)(shou)(shou)動(dong)(dong)(dong)換(huan)(huan)(huan)(huan)向閥(fa)(fa)的(de)(de)結構(gou)簡(jian)(jian)單(dan)，運動(dong)(dong)(dong)部件少(shao)，因此其可(ke)靠性(xing)(xing)較高，使(shi)用(yong)(yong)壽命較長。然(ran)而，手(shou)(shou)(shou)(shou)(shou)動(dong)(dong)(dong)換(huan)(huan)(huan)(huan)向閥(fa)(fa)也(ye)存在(zai)一(yi)些缺點：靈(ling)活(huo)性(xing)(xing)不足：手(shou)(shou)(shou)(shou)(shou)動(dong)(dong)(dong)換(huan)(huan)(huan)(huan)向閥(fa)(fa)需(xu)要(yao)手(shou)(shou)(shou)(shou)(shou)動(dong)(dong)(dong)操(cao)作，因此無法(fa)實(shi)現自動(dong)(dong)(dong)化控制(zhi)(zhi)，也(ye)不適(shi)(shi)合(he)用(yong)(yong)于(yu)一(yi)些需(xu)要(yao)快(kuai)速反應的(de)(de)場合(he)。精度較低(di)(di)：手(shou)(shou)(shou)(shou)(shou)動(dong)(dong)(dong)換(huan)(huan)(huan)(huan)向閥(fa)(fa)的(de)(de)控制(zhi)(zhi)精度較低(di)(di)，容易受到人(ren)為因素(su)的(de)(de)影響，如操(cao)作不當或(huo)疏忽都可(ke)能引發問題。適(shi)(shi)用(yong)(yong)范(fan)圍有(you)(you)限：手(shou)(shou)(shou)(shou)(shou)動(dong)(dong)(dong)換(huan)(huan)(huan)(huan)向閥(fa)(fa)適(shi)(shi)用(yong)(yong)于(yu)一(yi)些小流量(liang)、低(di)(di)壓(ya)(ya)力的(de)(de)場合(he)，對(dui)于(yu)一(yi)些需(xu)要(yao)大(da)流量(liang)和高壓(ya)(ya)力控制(zhi)(zhi)的(de)(de)場合(he)則不太適(shi)(shi)用(yong)(yong)。綜(zong)上所述(shu)，手(shou)(shou)(shou)(shou)(shou)動(dong)(dong)(dong)換(huan)(huan)(huan)(huan)向閥(fa)(fa)具有(you)(you)操(cao)作簡(jian)(jian)單(dan)、價格(ge)低(di)(di)廉和可(ke)靠性(xing)(xing)高等優點，但也(ye)存在(zai)靈(ling)活(huo)性(xing)(xing)不足、精度較低(di)(di)和適(shi)(shi)用(yong)(yong)范(fan)圍有(you)(you)限等缺點。在(zai)選擇使(shi)用(yong)(yong)時需(xu)要(yao)根據實(shi)際需(xu)求(qiu)和條件進(jin)行綜(zong)合(he)考(kao)慮(lv)。浙江久大(da)氣動(dong)(dong)(dong)液壓(ya)(ya)有(you)(you)限公司為您提供換(huan)(huan)(huan)(huan)向閥(fa)(fa)設(she)備(bei)，歡迎新老(lao)客(ke)戶來(lai)電！湖北兩位(wei)三通(tong)換(huan)(huan)(huan)(huan)向閥(fa)(fa)

方(fang)(fang)向(xiang)控(kong)(kong)制閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)選(xuan)(xuan)(xuan)(xuan)型(xing)需(xu)(xu)要(yao)注(zhu)意以(yi)下五(wu)(wu)條：1、根據(ju)(ju)流(liu)(liu)(liu)量(liang)(liang)選(xuan)(xuan)(xuan)(xuan)擇閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)通(tong)(tong)徑是(shi)根據(ju)(ju)氣動執行(xing)機構在工作壓(ya)力狀(zhuang)態下的(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)量(liang)(liang)值來(lai)選(xuan)(xuan)(xuan)(xuan)取(qu)的(de)(de)(de)(de)(de)(de)。目前國內(nei)各生產廠對(dui)于(yu)閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)量(liang)(liang)的(de)(de)(de)(de)(de)(de)用(yong)(yong)自(zi)由空氣流(liu)(liu)(liu)量(liang)(liang)（ANR），也有(you)(you)的(de)(de)(de)(de)(de)(de)用(yong)(yong)有(you)(you)壓(ya)狀(zhuang)態下的(de)(de)(de)(de)(de)(de)空氣流(liu)(liu)(liu)量(liang)(liang)（一(yi)(yi)般(ban)是(shi)指(zhi)在0.5Mpa工作壓(ya)力下）表示。市售的(de)(de)(de)(de)(de)(de)閥(fa)(fa)(fa)流(liu)(liu)(liu)量(liang)(liang)參數有(you)(you)各種不同的(de)(de)(de)(de)(de)(de)表示方(fang)(fang)法，而且閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)接管螺(luo)紋不等于(yu)閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)通(tong)(tong)徑。選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)的(de)(de)(de)(de)(de)(de)閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)量(liang)(liang)應(ying)略(lve)大于(yu)系統所需(xu)(xu)的(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)量(liang)(liang)。信(xin)號閥(fa)(fa)(fa)（如(ru)手動閥(fa)(fa)(fa)）是(shi)根據(ju)(ju)它距(ju)所控(kong)(kong)制閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)遠近(jin)、數量(liang)(liang)和響應(ying)時(shi)間要(yao)求(qiu)來(lai)選(xuan)(xuan)(xuan)(xuan)擇的(de)(de)(de)(de)(de)(de)。一(yi)(yi)般(ban)，對(dui)集中控(kong)(kong)制或(huo)距(ju)離(li)在20M以(yi)內(nei)的(de)(de)(de)(de)(de)(de)場合(he)，可選(xuan)(xuan)(xuan)(xuan)3mm通(tong)(tong)徑的(de)(de)(de)(de)(de)(de)；對(dui)于(yu)距(ju)離(li)距(ju)離(li)在20m以(yi)上(shang)或(huo)控(kong)(kong)制數量(liang)(liang)較(jiao)多的(de)(de)(de)(de)(de)(de)場合(he)，可選(xuan)(xuan)(xuan)(xuan)6mm通(tong)(tong)徑的(de)(de)(de)(de)(de)(de)。2、根據(ju)(ju)氣動自(zi)動化系統工作要(yao)求(qiu)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)功(gong)能(neng)及控(kong)(kong)制方(fang)(fang)式(shi)，包括(kuo)元(yuan)件的(de)(de)(de)(de)(de)(de)位(wei)置(zhi)數、通(tong)(tong)路數、記憶功(gong)能(neng)、靜置(zhi)時(shi)通(tong)(tong)斷狀(zhuang)態。應(ying)盡(jin)量(liang)(liang)選(xuan)(xuan)(xuan)(xuan)擇與所需(xu)(xu)機能(neng)相一(yi)(yi)致的(de)(de)(de)(de)(de)(de)閥(fa)(fa)(fa)，如(ru)選(xuan)(xuan)(xuan)(xuan)不到可用(yong)(yong)其它閥(fa)(fa)(fa)或(huo)用(yong)(yong)幾個(ge)閥(fa)(fa)(fa)組合(he)使(shi)用(yong)(yong)。如(ru)用(yong)(yong)二位(wei)五(wu)(wu)通(tong)(tong)代替二位(wei)三通(tong)(tong)或(huo)二位(wei)二通(tong)(tong)閥(fa)(fa)(fa)，只(zhi)要(yao)將不用(yong)(yong)的(de)(de)(de)(de)(de)(de)孔口用(yong)(yong)堵頭堵上(shang)即可。又如(ru)用(yong)(yong)兩個(ge)二位(wei)三通(tong)(tong)閥(fa)(fa)(fa)代替一(yi)(yi)個(ge)二位(wei)五(wu)(wu)通(tong)(tong)閥(fa)(fa)(fa)，或(huo)用(yong)(yong)兩個(ge)二位(wei)二通(tong)(tong)閥(fa)(fa)(fa)代替一(yi)(yi)個(ge)二位(wei)三通(tong)(tong)閥(fa)(fa)(fa)。這種方(fang)(fang)法一(yi)(yi)般(ban)不推(tui)薦，但在維修急用(yong)(yong)時(shi)可一(yi)(yi)試。重慶四通(tong)(tong)換(huan)向(xiang)閥(fa)(fa)(fa)品牌換(huan)向(xiang)閥(fa)(fa)(fa)設備(bei)，就(jiu)選(xuan)(xuan)(xuan)(xuan)浙(zhe)江久大氣動液壓(ya)有(you)(you)限公(gong)司，用(yong)(yong)戶的(de)(de)(de)(de)(de)(de)信(xin)賴之選(xuan)(xuan)(xuan)(xuan)，有(you)(you)需(xu)(xu)求(qiu)可以(yi)來(lai)電(dian)咨(zi)詢！

換(huan)(huan)向(xiang)閥(fa)(fa)是具有(you)兩(liang)種以(yi)(yi)上流(liu)動(dong)(dong)形(xing)式和(he)(he)兩(liang)個以(yi)(yi)上油(you)口(kou)的(de)(de)方向(xiang)控制閥(fa)(fa)，它是實(shi)現液壓油(you)流(liu)的(de)(de)溝通、切斷(duan)和(he)(he)換(huan)(huan)向(xiang)，以(yi)(yi)及壓力(li)(li)卸載和(he)(he)順(shun)序(xu)動(dong)(dong)作控制的(de)(de)閥(fa)(fa)門(men)。換(huan)(huan)向(xiang)閥(fa)(fa)的(de)(de)保(bao)養步驟(zou)包(bao)括：定期檢查(cha)換(huan)(huan)向(xiang)閥(fa)(fa)表面(mian)是否清潔(jie)，有(you)無密封(feng)(feng)失效、泄漏等現象。使(shi)用清潔(jie)劑對(dui)閥(fa)(fa)體(ti)進(jin)行徹底(di)清洗，過程中(zhong)要小心慢工細活，不(bu)要弄壞閥(fa)(fa)體(ti)密封(feng)(feng)面(mian)或(huo)者其他重(zhong)要部件。如(ru)果發(fa)現密封(feng)(feng)件老化、松動(dong)(dong)或(huo)者有(you)明顯的(de)(de)磨損，則需(xu)要更換(huan)(huan)新的(de)(de)密封(feng)(feng)件，以(yi)(yi)保(bao)證閥(fa)(fa)門(men)的(de)(de)密封(feng)(feng)性。向(xiang)三(san)通換(huan)(huan)向(xiang)閥(fa)(fa)中(zhong)添加適量的(de)(de)潤滑(hua)油(you)，以(yi)(yi)減少閥(fa)(fa)芯(xin)之間的(de)(de)摩擦力(li)(li)，提高閥(fa)(fa)門(men)的(de)(de)靈活性。

浙江(jiang)久大氣動(dong)液(ye)(ye)壓(ya)(ya)有限公(gong)司手(shou)動(dong)換(huan)向(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)的(de)(de)工作原(yuan)理是通過手(shou)動(dong)操(cao)作閥(fa)(fa)(fa)(fa)門(men)，改(gai)(gai)變閥(fa)(fa)(fa)(fa)門(men)內(nei)部的(de)(de)流(liu)(liu)道(dao)，從(cong)而(er)實(shi)現(xian)液(ye)(ye)壓(ya)(ya)油的(de)(de)流(liu)(liu)向(xiang)(xiang)(xiang)控制(zhi)。具體來說，當(dang)手(shou)動(dong)操(cao)作閥(fa)(fa)(fa)(fa)門(men)時，閥(fa)(fa)(fa)(fa)門(men)內(nei)部的(de)(de)流(liu)(liu)道(dao)會(hui)發生改(gai)(gai)變，從(cong)而(er)改(gai)(gai)變液(ye)(ye)壓(ya)(ya)油的(de)(de)流(liu)(liu)向(xiang)(xiang)(xiang)。例如，當(dang)手(shou)動(dong)操(cao)作閥(fa)(fa)(fa)(fa)門(men)使其(qi)處于一(yi)(yi)個位(wei)置(zhi)時，液(ye)(ye)壓(ya)(ya)油可(ke)以從(cong)一(yi)(yi)個管道(dao)進入(ru)閥(fa)(fa)(fa)(fa)門(men)，然后從(cong)另(ling)一(yi)(yi)個管道(dao)流(liu)(liu)出。當(dang)手(shou)動(dong)操(cao)作閥(fa)(fa)(fa)(fa)門(men)使其(qi)處于另(ling)一(yi)(yi)個位(wei)置(zhi)時，液(ye)(ye)壓(ya)(ya)油的(de)(de)流(liu)(liu)向(xiang)(xiang)(xiang)也會(hui)隨之(zhi)改(gai)(gai)變。因此，手(shou)動(dong)換(huan)向(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)可(ke)以控制(zhi)液(ye)(ye)壓(ya)(ya)系統(tong)中液(ye)(ye)壓(ya)(ya)油的(de)(de)流(liu)(liu)向(xiang)(xiang)(xiang)，從(cong)而(er)實(shi)現(xian)液(ye)(ye)壓(ya)(ya)系統(tong)的(de)(de)正常(chang)運(yun)行。浙江(jiang)久大氣動(dong)液(ye)(ye)壓(ya)(ya)有限公(gong)司是一(yi)(yi)家專業提供換(huan)向(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)設備(bei)的(de)(de)公(gong)司。

換(huan)(huan)向(xiang)(xiang)(xiang)閥(fa)在液(ye)壓(ya)系(xi)(xi)統(tong)中(zhong)主(zhu)要有以(yi)下作用：控(kong)(kong)制(zhi)油(you)液(ye)流(liu)動(dong)方向(xiang)(xiang)(xiang)：換(huan)(huan)向(xiang)(xiang)(xiang)閥(fa)能(neng)通(tong)(tong)(tong)過(guo)(guo)改變(bian)(bian)閥(fa)芯(xin)和(he)閥(fa)體的(de)(de)(de)相對(dui)位置，控(kong)(kong)制(zhi)油(you)液(ye)流(liu)動(dong)方向(xiang)(xiang)(xiang)，實(shi)(shi)現(xian)(xian)(xian)液(ye)壓(ya)系(xi)(xi)統(tong)的(de)(de)(de)工(gong)作狀態和(he)方向(xiang)(xiang)(xiang)的(de)(de)(de)改變(bian)(bian)。控(kong)(kong)制(zhi)執行(xing)元(yuan)件(jian)動(dong)作：換(huan)(huan)向(xiang)(xiang)(xiang)閥(fa)可以(yi)配合(he)其(qi)他液(ye)壓(ya)元(yuan)件(jian)，如(ru)泵(beng)、缸(gang)、馬達等(deng)，實(shi)(shi)現(xian)(xian)(xian)更為(wei)復雜的(de)(de)(de)液(ye)壓(ya)控(kong)(kong)制(zhi)。例(li)如(ru)，通(tong)(tong)(tong)過(guo)(guo)將換(huan)(huan)向(xiang)(xiang)(xiang)閥(fa)與泵(beng)、缸(gang)等(deng)元(yuan)件(jian)組合(he)使用，可以(yi)實(shi)(shi)現(xian)(xian)(xian)液(ye)壓(ya)系(xi)(xi)統(tong)的(de)(de)(de)順序動(dong)作控(kong)(kong)制(zhi)、壓(ya)力控(kong)(kong)制(zhi)等(deng)功(gong)能(neng)。自(zi)動(dong)控(kong)(kong)制(zhi)：換(huan)(huan)向(xiang)(xiang)(xiang)閥(fa)可以(yi)通(tong)(tong)(tong)過(guo)(guo)調節(jie)(jie)液(ye)壓(ya)系(xi)(xi)統(tong)的(de)(de)(de)流(liu)量和(he)流(liu)向(xiang)(xiang)(xiang)，實(shi)(shi)現(xian)(xian)(xian)液(ye)壓(ya)系(xi)(xi)統(tong)的(de)(de)(de)自(zi)動(dong)控(kong)(kong)制(zhi)。例(li)如(ru)，通(tong)(tong)(tong)過(guo)(guo)調節(jie)(jie)換(huan)(huan)向(xiang)(xiang)(xiang)閥(fa)的(de)(de)(de)開口大(da)小，可以(yi)控(kong)(kong)制(zhi)油(you)液(ye)的(de)(de)(de)流(liu)量和(he)流(liu)向(xiang)(xiang)(xiang)，從而(er)實(shi)(shi)現(xian)(xian)(xian)液(ye)壓(ya)系(xi)(xi)統(tong)的(de)(de)(de)自(zi)動(dong)控(kong)(kong)制(zhi)和(he)調節(jie)(jie)。總(zong)之，換(huan)(huan)向(xiang)(xiang)(xiang)閥(fa)是(shi)液(ye)壓(ya)系(xi)(xi)統(tong)中(zhong)非常重要的(de)(de)(de)元(yuan)件(jian)之一，它可以(yi)實(shi)(shi)現(xian)(xian)(xian)液(ye)壓(ya)系(xi)(xi)統(tong)的(de)(de)(de)多(duo)種(zhong)控(kong)(kong)制(zhi)功(gong)能(neng)，提高液(ye)壓(ya)系(xi)(xi)統(tong)的(de)(de)(de)性(xing)能(neng)和(he)效率。浙江久(jiu)大(da)氣動(dong)液(ye)壓(ya)有限公(gong)司為(wei)您提供換(huan)(huan)向(xiang)(xiang)(xiang)閥(fa)設備(bei)。安徽兩位五通(tong)(tong)(tong)電磁換(huan)(huan)向(xiang)(xiang)(xiang)閥(fa)品牌(pai)

浙江久大(da)氣動液壓(ya)有限(xian)公(gong)司是一家專業(ye)提供換向閥設(she)備的公(gong)司，期待您的光臨！湖北兩(liang)位(wei)三通換向閥

在氣(qi)壓(ya)(ya)(ya)(ya)系統中，換(huan)(huan)(huan)(huan)(huan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)方式(shi)(shi)(shi)主(zhu)要是通過外加(jia)的(de)(de)(de)(de)(de)(de)氣(qi)壓(ya)(ya)(ya)(ya)信(xin)(xin)號來(lai)(lai)實(shi)現(xian)。具體(ti)來(lai)(lai)說，氣(qi)壓(ya)(ya)(ya)(ya)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)換(huan)(huan)(huan)(huan)(huan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)是利(li)用(yong)氣(qi)體(ti)壓(ya)(ya)(ya)(ya)力(li)來(lai)(lai)使(shi)主(zhu)閥(fa)(fa)(fa)(fa)(fa)芯運動(dong)而使(shi)氣(qi)體(ti)改變流(liu)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)的(de)(de)(de)(de)(de)(de)。根據(ju)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)方式(shi)(shi)(shi)的(de)(de)(de)(de)(de)(de)不同(tong)(tong)，氣(qi)壓(ya)(ya)(ya)(ya)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)換(huan)(huan)(huan)(huan)(huan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)可(ke)以(yi)(yi)分為(wei)加(jia)壓(ya)(ya)(ya)(ya)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)、卸(xie)壓(ya)(ya)(ya)(ya)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)和差(cha)壓(ya)(ya)(ya)(ya)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)三種類(lei)型(xing)。加(jia)壓(ya)(ya)(ya)(ya)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)是指所(suo)加(jia)的(de)(de)(de)(de)(de)(de)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)信(xin)(xin)號壓(ya)(ya)(ya)(ya)力(li)是逐漸(jian)(jian)(jian)上升的(de)(de)(de)(de)(de)(de)，當氣(qi)壓(ya)(ya)(ya)(ya)增加(jia)到(dao)(dao)閥(fa)(fa)(fa)(fa)(fa)芯的(de)(de)(de)(de)(de)(de)動(dong)作(zuo)(zuo)壓(ya)(ya)(ya)(ya)力(li)時，主(zhu)閥(fa)(fa)(fa)(fa)(fa)便(bian)換(huan)(huan)(huan)(huan)(huan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)；卸(xie)壓(ya)(ya)(ya)(ya)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)是指所(suo)加(jia)的(de)(de)(de)(de)(de)(de)氣(qi)控(kong)(kong)(kong)(kong)(kong)信(xin)(xin)號壓(ya)(ya)(ya)(ya)力(li)是減(jian)小(xiao)的(de)(de)(de)(de)(de)(de)，當減(jian)小(xiao)到(dao)(dao)某(mou)一(yi)壓(ya)(ya)(ya)(ya)力(li)值時，主(zhu)閥(fa)(fa)(fa)(fa)(fa)換(huan)(huan)(huan)(huan)(huan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)；差(cha)壓(ya)(ya)(ya)(ya)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)是使(shi)主(zhu)閥(fa)(fa)(fa)(fa)(fa)芯在兩端(duan)壓(ya)(ya)(ya)(ya)力(li)差(cha)的(de)(de)(de)(de)(de)(de)作(zuo)(zuo)用(yong)下換(huan)(huan)(huan)(huan)(huan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)。此外，根據(ju)主(zhu)閥(fa)(fa)(fa)(fa)(fa)結(jie)構(gou)的(de)(de)(de)(de)(de)(de)不同(tong)(tong)，氣(qi)壓(ya)(ya)(ya)(ya)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)換(huan)(huan)(huan)(huan)(huan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)又可(ke)以(yi)(yi)分為(wei)截止式(shi)(shi)(shi)和滑閥(fa)(fa)(fa)(fa)(fa)式(shi)(shi)(shi)兩種主(zhu)要形(xing)式(shi)(shi)(shi)。滑閥(fa)(fa)(fa)(fa)(fa)式(shi)(shi)(shi)氣(qi)控(kong)(kong)(kong)(kong)(kong)換(huan)(huan)(huan)(huan)(huan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)結(jie)構(gou)和工作(zuo)(zuo)原理與液(ye)動(dong)換(huan)(huan)(huan)(huan)(huan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)基本(ben)相(xiang)同(tong)(tong)。在此主(zhu)要介紹(shao)截止式(shi)(shi)(shi)換(huan)(huan)(huan)(huan)(huan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)。總的(de)(de)(de)(de)(de)(de)來(lai)(lai)說，氣(qi)壓(ya)(ya)(ya)(ya)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)換(huan)(huan)(huan)(huan)(huan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)通過外加(jia)的(de)(de)(de)(de)(de)(de)氣(qi)壓(ya)(ya)(ya)(ya)信(xin)(xin)號來(lai)(lai)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)主(zhu)閥(fa)(fa)(fa)(fa)(fa)芯的(de)(de)(de)(de)(de)(de)運動(dong)，從而改變氣(qi)體(ti)的(de)(de)(de)(de)(de)(de)流(liu)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)。不同(tong)(tong)的(de)(de)(de)(de)(de)(de)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)方式(shi)(shi)(shi)可(ke)以(yi)(yi)實(shi)現(xian)不同(tong)(tong)的(de)(de)(de)(de)(de)(de)功能，如加(jia)壓(ya)(ya)(ya)(ya)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)可(ke)以(yi)(yi)實(shi)現(xian)氣(qi)體(ti)的(de)(de)(de)(de)(de)(de)逐漸(jian)(jian)(jian)增加(jia)，卸(xie)壓(ya)(ya)(ya)(ya)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)可(ke)以(yi)(yi)實(shi)現(xian)氣(qi)體(ti)的(de)(de)(de)(de)(de)(de)逐漸(jian)(jian)(jian)減(jian)少(shao)，而差(cha)壓(ya)(ya)(ya)(ya)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)則可(ke)以(yi)(yi)利(li)用(yong)兩端(duan)壓(ya)(ya)(ya)(ya)力(li)差(cha)來(lai)(lai)使(shi)閥(fa)(fa)(fa)(fa)(fa)芯運動(dong)。湖北兩位三通換(huan)(huan)(huan)(huan)(huan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)

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