德國費斯托電磁閥日常保養與用途特點

閥門容易被污染的區域.為了確保閥座運動自由，每年應清洗一次，井通過排污嘴定期檢查閥門的密封性.輔氣干線的閥門往往很少調節，每年少應開關一次并注入適量的潤滑脂，防止球體和閥座膠合及閥球與閥座之間的子磨。
　　費斯托電磁閥良好的技術特性使得整條輸氣管線揮然一體(全部焊接而成)，增強了管道(含閥門)的整體抗應力、抗地質災害(如地質塌陷)的能力.減小了漏氣的可能.閥門可靠性提高壽命延長，安裝和維護也非常方便。
　　費斯托電磁閥的用途與特點用途 是一種直角回轉結構，它與閥門定位器配套使用，可實現比例調節; V型閥芯適用于各種調節場合，具有額定流量系數大，可調比大，密封效果好，調節性能靈敏，體積小，可豎臥安裝。適用于控制氣體、蒸汽、液體等介質。
　　費斯托電磁閥是一種直角回轉結構，由V型閥體、氣動執行機構、定位器及其他附件組成;有一個近似等百比的固有流量特性;采用雙軸承結構，啟動扭矩小，具有*的靈敏度和感應速度;*的剪切能力。
　　FESTO電磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)隔磁(ci)(ci)(ci)套(tao)管內的(de)(de)(de)鐵(tie)(tie)芯完成(cheng)，不(bu)(bu)存在(zai)動(dong)密封，所以外漏易(yi)堵(du)絕。電動(dong)閥(fa)(fa)(fa)(fa)(fa)力(li)(li)(li)(li)矩控(kong)制(zhi)(zhi)不(bu)(bu)易(yi)，容易(yi)產(chan)生內漏，甚至(zhi)(zhi)拉斷閥(fa)(fa)(fa)(fa)(fa)桿(gan)頭部；電磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)結構型(xing)式容易(yi)控(kong)制(zhi)(zhi)內泄漏，直至(zhi)(zhi)降為零(ling)。所以，電磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)使用(yong)(yong)(yong)(yong)特別安全，尤(you)其適用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)(yu)腐(fu)蝕(shi)(shi)性(xing)(xing)(xing)(xing)(xing)、有毒或高低(di)溫的(de)(de)(de)介(jie)質(zhi)(zhi)。 FESTO電磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)是一(yi)種利用(yong)(yong)(yong)(yong)介(jie)質(zhi)(zhi)自(zi)身的(de)(de)(de)壓(ya)力(li)(li)(li)(li)變化(hua)進(jin)行自(zi)我控(kong)制(zhi)(zhi)而(er)保持(chi)流(liu)(liu)(liu)經該被(bei)控(kong)系統(tong)(tong)(tong)(tong)介(jie)質(zhi)(zhi)壓(ya)差(cha)不(bu)(bu)變的(de)(de)(de)節能(neng)產(chan)品。適用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)(yu)供暖方式采(cai)用(yong)(yong)(yong)(yong)雙管系統(tong)(tong)(tong)(tong)的(de)(de)(de)壓(ya)差(cha)控(kong)制(zhi)(zhi)，保證(zheng)系統(tong)(tong)(tong)(tong)的(de)(de)(de)壓(ya)差(cha)基本不(bu)(bu)變，減低(di)噪音，平衡阻力(li)(li)(li)(li)，消除熱(re)網的(de)(de)(de)水(shui)力(li)(li)(li)(li)失調(diao)(diao)。 FESTO電磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)它(ta)(ta)是用(yong)(yong)(yong)(yong)壓(ya)差(cha)作用(yong)(yong)(yong)(yong)來(lai)調(diao)(diao)節閥(fa)(fa)(fa)(fa)(fa)門(men)的(de)(de)(de)開(kai)度(du)，利用(yong)(yong)(yong)(yong)閥(fa)(fa)(fa)(fa)(fa)芯的(de)(de)(de)壓(ya)降變化(hua)來(lai)彌補(bu)管路(lu)(lu)阻力(li)(li)(li)(li)的(de)(de)(de)變化(hua)，從(cong)而(er)使在(zai)工(gong)(gong)(gong)況變化(hua)時(shi)能(neng)保持(chi)壓(ya)差(cha)基本不(bu)(bu)變，它(ta)(ta)的(de)(de)(de)原理是在(zai)一(yi)定(ding)(ding)(ding)的(de)(de)(de)流(liu)(liu)(liu)量范圍(wei)內，可(ke)以有效地控(kong)制(zhi)(zhi)被(bei)控(kong)系統(tong)(tong)(tong)(tong)的(de)(de)(de)壓(ya)差(cha)恒(heng)定(ding)(ding)(ding)，即當系統(tong)(tong)(tong)(tong)的(de)(de)(de)壓(ya)差(cha)增(zeng)大(da)時(shi)，通過(guo)FESTO電磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)自(zi)動(dong)關小動(dong)作，它(ta)(ta)能(neng)保證(zheng)被(bei)控(kong)系統(tong)(tong)(tong)(tong)壓(ya)差(cha)增(zeng)大(da)反之(zhi)，當壓(ya)差(cha)減小時(shi)，閥(fa)(fa)(fa)(fa)(fa)門(men)自(zi)動(dong)開(kai)大(da)，壓(ya)差(cha)仍保持(chi)恒(heng)定(ding)(ding)(ding)。 FESTO電磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)設定(ding)(ding)(ding)壓(ya)差(cha)應與(yu)閥(fa)(fa)(fa)(fa)(fa)內管路(lu)(lu)系統(tong)(tong)(tong)(tong)在(zai)設計流(liu)(liu)(liu)量下(xia)的(de)(de)(de)阻力(li)(li)(li)(li)相匹配，以保證(zheng)閥(fa)(fa)(fa)(fa)(fa)門(men)在(zai)其工(gong)(gong)(gong)作區域(yu)工(gong)(gong)(gong)作。二者(zhe)相差(cha)過(guo)大(da)將導(dao)致閥(fa)(fa)(fa)(fa)(fa)內管路(lu)(lu)系統(tong)(tong)(tong)(tong)實際(ji)流(liu)(liu)(liu)量過(guo)大(da)，從(cong)而(er)造成(cheng)閥(fa)(fa)(fa)(fa)(fa)外管路(lu)(lu)系統(tong)(tong)(tong)(tong)水(shui)力(li)(li)(li)(li)失調(diao)(diao)或導(dao)致閥(fa)(fa)(fa)(fa)(fa)內管路(lu)(lu)系統(tong)(tong)(tong)(tong)實際(ji)流(liu)(liu)(liu)量過(guo)小影響供熱(re)效果。 1.灰(hui)(hui)鑄(zhu)(zhu)(zhu)鐵(tie)(tie),如HT200、HT肺0等(deng)(deng)(deng),適用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)(yu)公(gong)稱(cheng)(cheng)壓(ya)力(li)(li)(li)(li)不(bu)(bu)大(da)于(yu)(yu)(yu)(yu)PN16，工(gong)(gong)(gong)作溫度(du)在(zai)-10~100℃。C之(zhi)間(jian)的(de)(de)(de)油類、一(yi)般性(xing)(xing)(xing)(xing)(xing)質(zhi)(zhi)的(de)(de)(de)液(ye)體(ti)介(jie)質(zhi)(zhi)（水(shui)、蒸(zheng)(zheng)汽(qi)(qi)(qi)、石油產(chan)品等(deng)(deng)(deng)）,公(gong)稱(cheng)(cheng)壓(ya)力(li)(li)(li)(li)不(bu)(bu)大(da)于(yu)(yu)(yu)(yu)PN10.工(gong)(gong)(gong)作溫度(du)在(zai)-10~200℃。C之(zhi)間(jian)的(de)(de)(de)蒸(zheng)(zheng)汽(qi)(qi)(qi)、一(yi)般性(xing)(xing)(xing)(xing)(xing)質(zhi)(zhi)氣(qi)體(ti)、煤氣(qi)、氨氣(qi)等(deng)(deng)(deng)介(jie)質(zhi)(zhi)（氨、醇、醋(cu)、醒(xing)、酬、楣等(deng)(deng)(deng)腐(fu)蝕(shi)(shi)性(xing)(xing)(xing)(xing)(xing)較低(di)的(de)(de)(de)介(jie)質(zhi)(zhi)）。它(ta)(ta)不(bu)(bu)適用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)(yu)鹽(yan)酸(suan)(suan)、硝(xiao)酸(suan)(suan)等(deng)(deng)(deng)介(jie)質(zhi)(zhi)。但能(neng)用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)(yu)濃(nong)硫(liu)酸(suan)(suan)中(zhong),這是因為濃(nong)硫(liu)酸(suan)(suan)能(neng)對(dui)(dui)其金屬表面產(chan)生一(yi)層(ceng)鈍(dun)化(hua)膜,以阻止濃(nong)硫(liu)酸(suan)(suan)對(dui)(dui)鑄(zhu)(zhu)(zhu)鐵(tie)(tie)的(de)(de)(de)腐(fu)蝕(shi)(shi)。 2。可(ke)鍛鑄(zhu)(zhu)(zhu)鐵(tie)(tie),如KTH350一(yi)10、KTH450-06等(deng)(deng)(deng),適用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)(yu)公(gong)稱(cheng)(cheng)壓(ya)力(li)(li)(li)(li)不(bu)(bu)大(da)于(yu)(yu)(yu)(yu)PN25,工(gong)(gong)(gong)作溫度(du)在(zai)-10~300℃之(zhi)間(jian)的(de)(de)(de)蒸(zheng)(zheng)汽(qi)(qi)(qi)、一(yi)般性(xing)(xing)(xing)(xing)(xing)質(zhi)(zhi)氣(qi)體(ti)和(he)液(ye)體(ti)、油類等(deng)(deng)(deng)介(jie)質(zhi)(zhi)。其耐(nai)蝕(shi)(shi)性(xing)(xing)(xing)(xing)(xing)能(neng)與(yu)灰(hui)(hui)鑄(zhu)(zhu)(zhu)鐵(tie)(tie)相似。 3.球墨(mo)鑄(zhu)(zhu)(zhu)鐵(tie)(tie),如QT400一(yi)I5`QT450-I0等(deng)(deng)(deng),適用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)(yu)公(gong)稱(cheng)(cheng)壓(ya)力(li)(li)(li)(li)不(bu)(bu)大(da)于(yu)(yu)(yu)(yu)FN25工(gong)(gong)(gong)作溫度(du)在(zai)一(yi)10一(yi)300。C之(zhi)間(jian)的(de)(de)(de)蒸(zheng)(zheng)汽(qi)(qi)(qi)、一(yi)般性(xing)(xing)(xing)(xing)(xing)質(zhi)(zhi)氣(qi)體(ti)及油類等(deng)(deng)(deng)介(jie)質(zhi)(zhi)。其耐(nai)腐(fu)蝕(shi)(shi)性(xing)(xing)(xing)(xing)(xing)較強,能(neng)在(zai)一(yi)定(ding)(ding)(ding)濃(nong)度(du)的(de)(de)(de)硫(liu)酸(suan)(suan)、硝(xiao)酸(suan)(suan)、酸(suan)(suan)性(xing)(xing)(xing)(xing)(xing)鹽(yan)中(zhong)工(gong)(gong)(gong)作。但不(bu)(bu)耐(nai)氯(lv)(lv)酸(suan)(suan)、強堿、鹽(yan)酸(suan)(suan)和(he)三氯(lv)(lv)化(hua)鐵(tie)(tie)熱(re)溶液(ye)的(de)(de)(de)腐(fu)蝕(shi)(shi)。使用(yong)(yong)(yong)(yong)時(shi)要避免驟(zou)熱(re)、驟(zou)冷,否則(ze)會破裂。 4.鎳鑄(zhu)(zhu)(zhu)鐵(tie)(tie),耐(nai)堿性(xing)(xing)(xing)(xing)(xing)能(neng)比灰(hui)(hui)詩鐵(tie)(tie)、球墨(mo)鑄(zhu)(zhu)(zhu)鐵(tie)(tie)閥(fa)(fa)(fa)(fa)(fa)門(men)強,用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)(yu)稀硫(liu)酸(suan)(suan)、稀鹽(yan)酸(suan)(suan)和(he)苛(ke)性(xing)(xing)(xing)(xing)(xing)堿中(zhong),鐐詩鐵(tie)(tie)是一(yi)種理想的(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)用(yong)(yong)(yong)(yong)材料(liao)。

　　德國費斯托電磁閥日常保養與用途特點