德國FESTO電磁閥，FESTO電磁閥，FESTO費斯托電磁閥

德國FESTO電磁閥，FESTO電磁閥，FESTO費斯托電磁閥/39529829/39529831
FESTO公司是氣動元件制造商中*家通過ISO 9001 認證的企業。Festo AG & Co. KG 是世界上zui的氣動元件、組件和系統的廠商。費斯托 （） 有限公司秉承的銷售理念，盡量避免中間環節，在各地建立了38個分公司、（截止2007年）直接面對用戶的需求，提供給客戶。
FESTO電磁閥的主要特點:（1）外漏堵，內漏易控，使用安全。內外泄漏是危及安全的要素。其它自控閥通常將閥桿伸出，由電動、氣動、液動執行機構控制閥芯的轉動或移動。這都要解決長期動作閥桿動密封的外泄漏難題；唯有電磁閥是用電磁力作用于密封在電動調節閥隔磁套管內的鐵芯完成，不存在動密封，所以外漏易堵。電動閥力矩控制不易，容易產生內漏，甚拉斷閥桿頭部；電磁閥的結構型式容易控制內泄漏，直降為零。所以，電磁閥使用特別安全，尤其適用于腐蝕性、有毒或高低溫的介質。（2）系統簡單，便接電腦，價格低謙。電磁閥本身結構簡單，價格也低，比起調節閥等其它種類執行器易于安裝維護。更顯著的是所組成的自控系統簡單得多，價格要低得多。由于電磁閥是開關信號控制，與工控計算機連接十分方便。在當今電腦普及，價格大幅下降的時代，電磁閥的優勢就更加明顯。（3）動作快遞，功率微小，外形輕巧。電磁閥響應時間可以短幾個毫秒，即使是導式電磁閥也可以控制在幾十毫秒內。由于自成回路，比之其它自控閥反應更靈敏。設計得當的電磁閥線圈功率消耗很低，屬節能產品；還可做到只需觸發動作，自動保持閥位，平時點也不耗電。電磁閥外形尺寸小，既節省空間，又輕巧美觀。（4）調節精度受限，適用介質受限。電磁閥通常只有開關兩種狀態，閥芯只能處于兩個極限位置，不能連續調節，（力圖突破的新構思不少，但還都處于試驗試用階段）所以調節精度還受到定限制。 　　電磁閥對介質潔凈度有較高要求，含顆粒狀的介質不能適用，如屬雜質須濾去。另外，粘稠狀介質不能適用，而且，特定的產品適用的介質粘度范圍相對較窄。（5）型號多樣，用途廣泛。電磁閥雖有天不足，優點仍十分突出，所以就設計成多種多樣的產品，滿足各種不同的需求，用途極為廣泛。電磁閥技術的進步也都是圍繞著如何克服天不足，如何更好地發揮固有優勢而展開。
、FESTO電磁閥產品選用要點1. 電磁閥選用主要控制參數為通徑、設計公稱壓力、介質允許溫度范圍、接口尺寸等。2. 電磁閥是用電磁鐵推動閥門的開啟與關閉，通常用于口徑在40mm以下的兩位式控制中，尤其多用于接通、切斷或轉換氣路、液路等。3. 閥門的密封是考核閥門優劣的主要指標之。閥門的密封主要包括兩個方面，即內漏和外漏。內漏是指閥座與關閉件之間對介質達到的密封程度。外漏是指閥桿填料部位的泄露，中口墊片部位的泄露以及閥體因鑄造缺陷造成的泄露。外漏是不允許發生的。4. 電磁閥主要優點是體積小，動作可靠，維修方便，價格便宜。選擇時需要注意根據工藝要求選擇常開或常閉型。
1.FESTO費斯托電磁閥從原(yuan)理(li)上(shang)(shang)(shang)(shang)分為(wei)三大類(lei)：1）直動(dong)(dong)式電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)：原(yuan)理(li)：通(tong)(tong)電(dian)(dian)(dian)(dian)時，電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)線(xian)圈(quan)產(chan)生電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)力(li)(li)把關(guan)(guan)(guan)(guan)(guan)(guan)(guan)閉(bi)件(jian)(jian)從閥(fa)(fa)(fa)(fa)座上(shang)(shang)(shang)(shang)提起(qi)，閥(fa)(fa)(fa)(fa)門(men)打(da)開；斷電(dian)(dian)(dian)(dian)時，電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)力(li)(li)消失，彈簧(huang)把關(guan)(guan)(guan)(guan)(guan)(guan)(guan)閉(bi)件(jian)(jian)壓(ya)(ya)(ya)(ya)在閥(fa)(fa)(fa)(fa)座上(shang)(shang)(shang)(shang)，閥(fa)(fa)(fa)(fa)門(men)關(guan)(guan)(guan)(guan)(guan)(guan)(guan)閉(bi)。特點(dian)：在真空、負(fu)壓(ya)(ya)(ya)(ya)、零(ling)壓(ya)(ya)(ya)(ya)時能(neng)正常工作，但通(tong)(tong)徑(jing)般不(bu)超過(guo)25mm。2）分步直動(dong)(dong)式電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)：原(yuan)理(li)： 它是種直動(dong)(dong)和(he)導(dao)(dao)式相(xiang)結(jie)合(he)的(de)原(yuan)理(li)，當入(ru)口(kou)(kou)與(yu)(yu)出口(kou)(kou)沒有壓(ya)(ya)(ya)(ya)差(cha)時，通(tong)(tong)電(dian)(dian)(dian)(dian)后，電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)力(li)(li)直接把導(dao)(dao)小閥(fa)(fa)(fa)(fa)和(he)主(zhu)閥(fa)(fa)(fa)(fa)關(guan)(guan)(guan)(guan)(guan)(guan)(guan)閉(bi)件(jian)(jian)依次向(xiang)上(shang)(shang)(shang)(shang)提起(qi)，閥(fa)(fa)(fa)(fa)門(men)打(da)開。當入(ru)口(kou)(kou)與(yu)(yu)出口(kou)(kou)達到啟動(dong)(dong)壓(ya)(ya)(ya)(ya)差(cha)時，通(tong)(tong)電(dian)(dian)(dian)(dian)后，電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)力(li)(li)導(dao)(dao)小閥(fa)(fa)(fa)(fa)，主(zhu)閥(fa)(fa)(fa)(fa)下(xia)腔(qiang)壓(ya)(ya)(ya)(ya)力(li)(li)上(shang)(shang)(shang)(shang)升，上(shang)(shang)(shang)(shang)腔(qiang)壓(ya)(ya)(ya)(ya)力(li)(li)下(xia)降，從而利(li)用壓(ya)(ya)(ya)(ya)差(cha)把主(zhu)閥(fa)(fa)(fa)(fa)向(xiang)上(shang)(shang)(shang)(shang)推(tui)開；斷電(dian)(dian)(dian)(dian)時，導(dao)(dao)閥(fa)(fa)(fa)(fa)利(li)用彈簧(huang)力(li)(li)或介質(zhi)壓(ya)(ya)(ya)(ya)力(li)(li)推(tui)動(dong)(dong)關(guan)(guan)(guan)(guan)(guan)(guan)(guan)閉(bi)件(jian)(jian)，向(xiang)下(xia)移(yi)動(dong)(dong)，使(shi)閥(fa)(fa)(fa)(fa)門(men)關(guan)(guan)(guan)(guan)(guan)(guan)(guan)閉(bi)。特點(dian)： 在零(ling)壓(ya)(ya)(ya)(ya)差(cha)或真空、高(gao)壓(ya)(ya)(ya)(ya)時亦能(neng)可(ke)*動(dong)(dong)作，但功率較大，要求必須(xu)水平安裝。3）導(dao)(dao)式電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)：原(yuan)理(li)：通(tong)(tong)電(dian)(dian)(dian)(dian)時，電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)力(li)(li)把導(dao)(dao)孔打(da)開，上(shang)(shang)(shang)(shang)腔(qiang)室壓(ya)(ya)(ya)(ya)力(li)(li)迅速(su)下(xia)降，在關(guan)(guan)(guan)(guan)(guan)(guan)(guan)閉(bi)件(jian)(jian)周(zhou)圍(wei)形成(cheng)上(shang)(shang)(shang)(shang)低(di)下(xia)高(gao)的(de)壓(ya)(ya)(ya)(ya)差(cha)，流(liu)體壓(ya)(ya)(ya)(ya)力(li)(li)推(tui)動(dong)(dong)關(guan)(guan)(guan)(guan)(guan)(guan)(guan)閉(bi)件(jian)(jian)向(xiang)上(shang)(shang)(shang)(shang)移(yi)動(dong)(dong)，閥(fa)(fa)(fa)(fa)門(men)打(da)開；斷電(dian)(dian)(dian)(dian)時，彈簧(huang)力(li)(li)把導(dao)(dao)孔關(guan)(guan)(guan)(guan)(guan)(guan)(guan)閉(bi)，入(ru)口(kou)(kou)壓(ya)(ya)(ya)(ya)力(li)(li)通(tong)(tong)過(guo)旁(pang)通(tong)(tong)孔迅速(su)腔(qiang)室在關(guan)(guan)(guan)(guan)(guan)(guan)(guan)閥(fa)(fa)(fa)(fa)件(jian)(jian)周(zhou)圍(wei)形成(cheng)下(xia)低(di)上(shang)(shang)(shang)(shang)高(gao)的(de)壓(ya)(ya)(ya)(ya)差(cha)，流(liu)體壓(ya)(ya)(ya)(ya)力(li)(li)推(tui)動(dong)(dong)關(guan)(guan)(guan)(guan)(guan)(guan)(guan)閉(bi)件(jian)(jian)向(xiang)下(xia)移(yi)動(dong)(dong)，關(guan)(guan)(guan)(guan)(guan)(guan)(guan)閉(bi)閥(fa)(fa)(fa)(fa)門(men)。特點(dian)： 流(liu)體壓(ya)(ya)(ya)(ya)力(li)(li)范圍(wei)上(shang)(shang)(shang)(shang)限較高(gao)，可(ke)任意(yi)安裝（需定(ding)制）但必須(xu)滿足流(liu)體壓(ya)(ya)(ya)(ya)差(cha)條(tiao)件(jian)(jian)。2.電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)從閥(fa)(fa)(fa)(fa)結(jie)構和(he)材料上(shang)(shang)(shang)(shang)的(de)不(bu)同與(yu)(yu)原(yuan)理(li)上(shang)(shang)(shang)(shang)的(de)區別，分為(wei)六個分支(zhi)小類(lei)：直動(dong)(dong)膜片結(jie)構、分步直動(dong)(dong)膜片結(jie)構、導(dao)(dao)膜片結(jie)構、直動(dong)(dong)活(huo)塞(sai)結(jie)構、分步直動(dong)(dong)活(huo)塞(sai)結(jie)構、導(dao)(dao)活(huo)塞(sai)結(jie)構。