一、自保持式電磁閥--用途
自保持式電磁(ci)閥是水電站冷(leng)卻水片控系統中替(ti)代液動閥的專用(yong)(yong)產品(pin)。廣(guang)泛(fan)應(ying)用(yong)(yong)于水電、染化、紡織、印染、食品(pin)、卷煙、水泥制品(pin)、石油化工(gong)、冶金(jin)、居民用(yong)(yong)水等部(bu)門(men)及其它各工(gong)業(ye)部(bu)門(men)的管路(lu)系統中
二、--工作原理
電(dian)(dian)(dian)磁(ci)導閥(fa)(fa)(fa)采用具有(you)機械式(shi)(shi)自(zi)鎖記憶功能(neng)的雙先導結構的自(zi)保(bao)持式(shi)(shi)。當部件線(xian)(xian)圈“B”通(tong)(tong)電(dian)(dian)(dian)，電(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)打開，然(ran)(ran)后斷電(dian)(dian)(dian)，此(ci)時電(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)為常(chang)通(tong)(tong)狀(zhuang)態(tai)，當部件線(xian)(xian)圈“A”通(tong)(tong)電(dian)(dian)(dian)，電(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)關閉(bi)，然(ran)(ran)后斷電(dian)(dian)(dian)，此(ci)時電(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)為常(chang)閉(bi)狀(zhuang)態(tai)。若線(xian)(xian)圈“A”、“B”同(tong)時通(tong)(tong)電(dian)(dian)(dian)，此(ci)時電(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)為常(chang)通(tong)(tong)狀(zhuang)態(tai)，線(xian)(xian)圈也不會(hui)因此(ci)燒壞，因此(ci)該閥(fa)(fa)(fa)是雙線(xian)(xian)圈自(zi)保(bao)持式(shi)(shi)水液電(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)換代更新產品
三、--結構特點
電磁部分、密封(feng)件全采用(yong)特種耐高溫電工材料和密封(feng)材料，并采用(yong)了有效的隔熱措施
結構簡單、緊湊(cou)、融(rong)合了直動式(shi)(shi)和先導(dao)間接式(shi)(shi)產(chan)品的優點,在低(di)壓(ya)或壓(ya)差(cha)為零情況下也能可(ke)靠工(gong)作
選材合理(li)，閥杯和導(dao)向套間巧妙地利用(yong)流(liu)體(ti)的潤(run)滑(hua)作用(yong)，減少磨損，提(ti)高壽命(ming)。
四、--技術參數
| 工作介質 | 水液、空氣(qi)、油(you)、蒸汽、蒸餾水等 |
| 介質(zhi)溫(wen)度℃ | ≤180 |
| 公稱壓力(li) Mpa | 1.6 |
| 工作壓差 Mpa | 0.1-0.8 \ 0.1-1.6 |
| 電源電壓 | AC220V DC24V其余規格可作特殊(shu)訂貨 |
| 額定流量系數 KV | 按JB/T7352-94規定 |
| 泄漏量(liang) ml/min | 按JB/T7352-94·F規定 |
| 公(gong)稱通徑(jing) mm | DN25-DN300 |
| 功耗 VA | 小線(xian)圈(DN150以(yi)下)AC≤36VA DC≤20W、大(da)線(xian)圈(DN150以(yi)下)AC≤50VA DC≤35W |
| 防爆標志 | ExmIIT4 |
| 防(fang)爆證編號 | GYB071325X |
| 出線口接頭 | 內螺紋M20×1.5或1.5米防(fang)爆引線 |
| 環境溫度 | -5～+60℃(不結凍) |
