安徽真空精煉真空管道蝶閥廠家供應頂耕國際貿易供應-b2b網站_b2b電子商務平臺【買產品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 對于易燃易爆、0或有放射的介質，外漏更是不能允許的，因而閥門必須具有可靠的密封性能。如何解決密封問題不成輕忽，閥門跑、冒、滴、漏現(xiàn)象，盡年夜部門發(fā)生這里。下面我們將計議閥門動密封、靜密封問題。"><meta name="keywords" content="安徽真空精煉真空管道蝶閥廠家供應"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var 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class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494296875/3009218.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="swikevc" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494296875/3009218.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="r2oogik" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產品關鍵詞：</span>安徽真空精煉真空管道蝶閥廠家供應</p><p><span>***更新：</span>2020-05-25 10:33:36</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="7wt7zry" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">頂耕國際貿易（上海）有限公司</a></p><p><span>聯(lián)系人：</span>查劍來</p><p><span>郵箱: </span></p><p><span>電話: </span>18521036598</p><p><span>傳真: </span>021_61637356</p><p><span>網址: </span></p><p><span>手機: </span>021-61637356</p><p><span>地址: </span>大葉公路5225號1幢2370室</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="e2ewy7l" class="page-proshow02"><p class="title">詳細說明</p><div id="b3gi8gd" class="box"><p><p> 對于易燃易爆、0或有放射的介質，外漏更是不能允許的，因而閥門必須具有可靠的密封性能。如何解決密封問題不成輕忽，閥門跑、冒、滴、漏現(xiàn)象，盡年夜部門發(fā)生這里。下面我們將計議閥門動密封、靜密封問題。1動密封閥門動密封，主指閥桿密封。不讓閥內介質隨閥桿運動而泄漏，是閥門動密封中心課題。1)填料函形式閥門動密封，以填料函為主。填料函基本形式是：(1)壓蓋式這是用**多形式。統(tǒng)一形式又能許多細節(jié)區(qū)分。例如，從壓緊螺栓來說，可分T形螺栓(用于壓力≤16千克/平方厘米低壓閥門)、雙頭螺栓和活節(jié)螺栓等。從壓蓋來說，可分整體式和組合式。(2)壓緊螺母式這類形式，外形尺寸小，但壓緊力受限制，只使用于小閥門，安徽真空精煉真空管道蝶閥廠家供應。2)填料填料函內，以填料與閥桿直接接觸并布滿填料函，阻止介質外漏，安徽真空精煉真空管道蝶閥廠家供應。對填料有以下要求：(1)密封性好；(2)耐侵蝕；(3)磨擦系數(shù)小；(4)順應介質溫度和壓力。經常使用填料有：(1)石棉盤根：石棉盤根，耐溫文耐侵蝕性能都很好，但零丁使用時，密封效果欠安，總是浸漬或附加其他材料，安徽真空精煉真空管道蝶閥廠家供應。油浸石棉盤根：它基本結構形式有兩種，一種是扭制，另外一種是編結。又可分圓形和方形。(2)聚四氟乙烯編織盤根：將聚四氟乙烯細帶編織為盤根，有極好耐侵蝕性能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽真空精煉真空管道蝶閥廠家供應" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494296875/3009218.png"></div><p> 蝶閥(英文：butterfly valve)是指關閉件(閥瓣或蝶板)為圓盤，圍繞閥軸旋轉來達到開啟與關閉的一種閥，在管道上主要起切斷和節(jié)流用。蝶閥啟閉件是一個圓盤形的蝶板，在閥體內繞其自身的軸線旋轉，從而達到啟閉或調節(jié)的目的。蝶閥全開到全關通常是小于90° ，蝶閥和蝶桿本身沒有自鎖能力，為了蝶板的定位，要在閥桿上加裝蝸輪減速器。采用蝸輪減速器，不僅可以使蝶板具有自鎖能力，使蝶板停止在任意位置上，還能改善閥門的操作性能。 </p> <p> 工業(yè)**蝶閥的特點能耐高溫，適用壓力范圍也較高，閥門公稱通徑大，閥體采用碳鋼制造，閥板的密封圈采用金屬環(huán)代替橡膠環(huán)。大型高溫蝶閥采用鋼板焊接制造，主要用于高溫介質的煙風道和煤氣管道。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽真空精煉真空管道蝶閥廠家供應" src="https://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737718496094/8657721.jpg"></div><p> 墊片不應落地。密封圈連結處的泄漏原因：1、密封圈輾壓不嚴；2、密封圈與本體焊接，堆焊質量差；3、密封圈連接螺紋、螺釘、壓圈松動；4、密封圈連接而被腐蝕。維護方法：1、密封輾壓處泄漏應注膠粘劑再輾壓固定；2、密封圈應按施焊規(guī)范重新不解之補焊。堆焊處無法補焊時應***原堆焊和加工；3、卸下螺釘、壓圈清洗，更換損壞的部件，研磨密封與連接座密合面，重新裝配。對腐蝕損壞大較大的部件，可用焊接、粘接等方法修復；4、密封圈連接面被腐蝕，可用研磨，粘接等方法修復，無法修復時用應更換密封圈。關閉件脫落產生泄漏原因：1、操作不良，使關閉件卡死或超過上死點，連接處損壞斷裂；2、關閉件連接不牢固，松勁而脫落；3、選用連接件材質不對，經不起介質的腐蝕和機械的磨損。維護方法：1、正確操作，關閉閥門不能用力過大，開啟閥門不能超過上死點，閥門全開后，手輪應倒轉少許；2、關閉件與閥桿連接應牢固，螺紋連接處應有止退件；3、關閉件與閥桿連接用的緊固件應經受住介質的腐蝕，并有一定的機械強度和耐磨性能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽真空精煉真空管道蝶閥廠家供應" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494189453/4103674.png"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/36872.html</p></div></div></div></div></div><div id="iczwi7c" class="page-right twoColRt"><div id="t77r32a" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="oikce88" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="cbd2738" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" alt="寧波寧海直接考A2有幾個科目真誠推薦寧波助學商務信息咨詢供應" class="vcenter" 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