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Vickers螺紋插裝閥(fa)(fa)一(yi)個部阻力(li)(li)可以(yi)變化(hua)的(de)(de)節流元件(jian),即通(tong)過改(gai)變節流面積(ji),使(shi)(shi)流速(su)及流體(ti)的(de)(de)動(dong)能改(gai)變,造成(cheng)不同(tong)(tong)的(de)(de)壓(ya)(ya)力(li)(li)損(sun)失,從而達到(dao)減壓(ya)(ya)的(de)(de)目的(de)(de)。然后依靠控制與(yu)調(diao)(diao)節系(xi)統的(de)(de)調(diao)(diao)節,使(shi)(shi)閥(fa)(fa)后壓(ya)(ya)力(li)(li)的(de)(de)波動(dong)與(yu)彈簧(huang)力(li)(li)相平衡,使(shi)(shi)閥(fa)(fa)后壓(ya)(ya)力(li)(li)在一(yi)定的(de)(de)誤差(cha)范(fan)圍(wei)內保持恒定。減壓(ya)(ya)閥(fa)(fa)既可以(yi)允許將(jiang)驅動(dong)壓(ya)(ya)力(li)(li)維持在能夠(gou)滿足(zu)泵(beng)(beng)排量的(de)(de)設(she)定壓(ya)(ya)力(li)(li),同(tong)(tong)時也可以(yi)保護進氣閥(fa)(fa)不受磨損(sun)。另外,在應用空間(jian)較(jiao)狹(xia)窄時,建議(yi)使(shi)(shi)用帶(dai)集汽管(guan)的(de)(de)減壓(ya)(ya)閥(fa)(fa)站。在泵(beng)(beng)泵(beng)(beng)水過程中,集汽管(guan)為(wei)泵(beng)(beng)供(gong)汽從而為(wei)泵(beng)(beng)提供(gong)了緩(huan)沖區。這個緩(huan)沖區使(shi)(shi)整個裝置的(de)(de)動(dong)作柔和,減少對減壓(ya)(ya)閥(fa)(fa)的(de)(de)磨損(sun)。減壓(ya)(ya)閥(fa)(fa)的(de)(de)輸出壓(ya)(ya)力(li)(li)較(jiao)高或(huo)通(tong)徑較(jiao)大時,用調(diao)(diao)壓(ya)(ya)彈簧(huang)直接調(diao)(diao)壓(ya)(ya),則(ze)彈簧(huang)剛度必然過大,流量變化(hua)時,輸出壓(ya)(ya)力(li)(li)波動(dong)較(jiao)大,閥(fa)(fa)的(de)(de)結構尺寸也將(jiang)增大。
VICKERS插(cha)裝(zhuang)閥(fa)(fa)和其(qi)閥(fa)(fa)孔(kong)的設計(ji)通(tong)用(yong)(yong)性(xing)的重要性(xing)在于大批量生產。就(jiu)某(mou)一(yi)(yi)(yi)種規(gui)格的插(cha)裝(zhuang)閥(fa)(fa)為(wei)例(li),為(wei)了批量生產,其(qi)閥(fa)(fa)口的尺(chi)寸是(shi)統一(yi)(yi)(yi)的。此外(wai),不(bu)同(tong)(tong)功能(neng)的閥(fa)(fa)可采用(yong)(yong)同(tong)(tong)一(yi)(yi)(yi)規(gui)格閥(fa)(fa)腔,例(li)如(ru):單向閥(fa)(fa)、錐閥(fa)(fa)、流量調節閥(fa)(fa)、節流閥(fa)(fa)、兩(liang)位電磁(ci)閥(fa)(fa)等等。如(ru)果同(tong)(tong)一(yi)(yi)(yi)規(gui)格、不(bu)同(tong)(tong)功能(neng)的閥(fa)(fa)無法(fa)采用(yong)(yong)不(bu)同(tong)(tong)閥(fa)(fa)體,那么閥(fa)(fa)塊(kuai)的加工成(cheng)本勢必增加,插(cha)裝(zhuang)閥(fa)(fa)的優勢就(jiu)不(bu)復存在。
VICKERS電(dian)(dian)磁(ci)閥(fa)(fa)(fa)出(chu)來的(de)先導油控(kong)制主(zhu)換(huan)向(xiang)閥(fa)(fa)(fa)閥(fa)(fa)(fa)芯的(de)移動(dong)(dong),使(shi)工(gong)作(zuo)泵的(de)來油進入動(dong)(dong)臂(bei)(bei)油缸(gang)實現(xian)動(dong)(dong)臂(bei)(bei)上(shang)升(sheng)。比例先導減壓(ya)閥(fa)(fa)(fa)的(de)輸出(chu)壓(ya)力越(yue)大,控(kong)制主(zhu)換(huan)向(xiang)閥(fa)(fa)(fa)閥(fa)(fa)(fa)芯的(de)位(wei)(wei)移越(yue)大,主(zhu)換(huan)向(xiang)閥(fa)(fa)(fa)通(tong)過的(de)流量越(yue)大,動(dong)(dong)臂(bei)(bei)上(shang)升(sheng)的(de)速度(du)越(yue)快(kuai)。當操作(zuo)手(shou)(shou)柄(bing)拉*限(xian)(xian)(xian)位(wei)(wei)置(zhi)時(shi),手(shou)(shou)柄(bing)中的(de)限(xian)(xian)(xian)位(wei)(wei)電(dian)(dian)磁(ci)鐵(tie)通(tong)電(dian)(dian),手(shou)(shou)柄(bing)在(zai)極限(xian)(xian)(xian)位(wei)(wei)置(zhi)被吸合。動(dong)(dong)臂(bei)(bei)以zui大的(de)速度(du)上(shang)升(sheng),當升(sheng)至動(dong)(dong)臂(bei)(bei)上(shang)位(wei)(wei)限(xian)(xian)(xian)位(wei)(wei)開關(guan)所限(xian)(xian)(xian)定的(de)位(wei)(wei)置(zhi)時(shi),操作(zuo)手(shou)(shou)柄(bing)限(xian)(xian)(xian)位(wei)(wei)電(dian)(dian)磁(ci)鐵(tie)斷電(dian)(dian),手(shou)(shou)柄(bing)自動(dong)(dong)恢復到(dao)中位(wei)(wei),動(dong)(dong)臂(bei)(bei)就可保(bao)持(chi)在(zai)所限(xian)(xian)(xian)定的(de)位(wei)(wei)置(zhi)。在(zai)動(dong)(dong)臂(bei)(bei)上(shang)升(sheng)的(de)過程中,若需要動(dong)(dong)臂(bei)(bei)在(zai)某一位(wei)(wei)置(zhi)停留,則(ze)需將(jiang)操作(zuo)手(shou)(shou)柄(bing)退回中位(wei)(wei)。
VICKERS換向閥(fa)DG4V-3-6C-VM-U-H7-60安(an)裝(zhuang)步驟:
1、先要檢查電(dian)磁閥是(shi)否與選(xuan)型參數(shu)*,比如(ru)電(dian)源電(dian)壓(ya)(ya)(ya)、介質壓(ya)(ya)(ya)力(li)、壓(ya)(ya)(ya)差等(deng),尤其是(shi)電(dian)源,如(ru)果搞(gao)錯,就會燒壞線圈(quan)(quan)。電(dian)源電(dian)壓(ya)(ya)(ya)應滿足額定電(dian)壓(ya)(ya)(ya)電(dian)壓(ya)(ya)(ya)波動范圍:交流(liu)+10%~-15%,直流(liu)+10%~-10%,平時線圈(quan)(quan)組(zu)件不宜拆開。
2、接管(guan)之前要對管(guan)道進行沖洗,把管(guan)道中的金屬粉(fen)末及密封(feng)材(cai)料殘留物,銹垢等清除。要注意(yi)介質的潔凈度,如(ru)果介質內混有塵垢,雜質等妨礙電磁閥(fa)的正(zheng)常(chang)工(gong)作,管(guan)道中應(ying)裝(zhuang)過濾器(qi)或濾網。
3、一般電(dian)(dian)磁閥的(de)(de)電(dian)(dian)磁線圈部件應(ying)豎直向上(shang),豎直安裝(zhuang)在(zai)(zai)水平(ping)于地(di)面的(de)(de)管道,如果(guo)受空間限制(zhi)或工況要求必須按側立安裝(zhuang)的(de)(de),需在(zai)(zai)選型訂貨時(shi)提出。否則可能(neng)造(zao)成電(dian)(dian)磁閥不(bu)能(neng)正常工作。
4、電磁(ci)閥(fa)前后應加手(shou)動切斷閥(fa),同(tong)時應設(she)旁路,便(bian)于電磁(ci)閥(fa)在故障時維護。
5、電磁(ci)閥(fa)一般(ban)是定向(xiang)的,不可裝(zhuang)(zhuang)(zhuang)反,通常在(zai)閥(fa)體(ti)上用→指(zhi)出(chu)介質流動方向(xiang),安(an)裝(zhuang)(zhuang)(zhuang)時要(yao)依照→指(zhi)示的方向(xiang)安(an)裝(zhuang)(zhuang)(zhuang)。不過在(zai)真(zhen)空(kong)管路或特殊情況下可以反裝(zhuang)(zhuang)(zhuang)。
6、如果(guo)介質會起水錘(chui)現象(xiang),那么應該選(xuan)用具防水錘(chui)功能的(de)電磁閥或采取(qu)相應的(de)防范措施。
7、盡量不(bu)要(yao)讓電磁閥長時間(jian)處于通電狀態(tai),這樣(yang)容易(yi)降低線圈使(shi)用壽命(ming)甚(shen)至燒壞線圈,就是說(shuo),常開、常閉電磁閥不(bu)可互換(huan)使(shi)用。
8、蒸汽用電磁(ci)閥入口側應裝有疏(shu)水閥,該處接管應傾(qing)斜。
VICKERS PVH057R01AA10A250000001AE1AB010A
VICKERS PVH057R01AA10A250000002001AB010A
VICKERS PVH057R01AA10E252004001001AA010A
VICKERS PVH057R01AB10A250000002001AE010A
VICKERS PVH074L02AA10B252000001001AA010A
VICKERS PVH074L13AA10B202000001AL1AB010A
VICKERS PVH074R01AA10A250000002001AB010A
VICKERS PVH074R01AA10A250000002001AB010A
VICKERS PVH074R01AA10A250000002001AB010A
VICKERS PVH074R01AA10H002000AW1001AB010A
VICKERS PVH074R01AB10A250000002001AE010A
VICKERS PVH074R01AB10A250000002001AE010A
VICKERS PVH074R01AB10A250000002001AE010A
VICKERS PVH074R01AB10A250000002001AE010A
VICKERS PVH074R03AA10A250000001AF1AB010A
VICKERS PVH074R13AA10A250000001AF1AB010A