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"index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="3n38g7d" class="twoCol"><div id="u2zxdza" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機械及行業(yè)設備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_famenti/">閥門</a>?<a href="http://www.cdcfah.com/cp/third-famenti_diefakna/">蝶閥</a>?河北鋼廠真空管道蝶閥等級頂耕國際貿易供應</p><div id="j2b2lfg" class="leftbox clearfix"><h1>河北鋼廠真空管道蝶閥等級頂耕國際貿易供應</h1><div id="iqxt8mn" class="proBig"><div id="qozlyoq" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494101563/3079327.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="382kof7" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494101563/3079327.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="pojahdp" 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(chǎn)品關鍵詞：</span>河北鋼廠真空管道蝶閥等級,真空管道蝶閥</p><p><span>***更新：</span>2020-09-27 12:31:01</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="eb3elmn" 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(wǎng)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="fn7vrd2" class="page-proshow02"><p class="title">詳細說明</p><div id="sk97wi8" class="box"><p><p> 什么情況下需要采用閥門定位器？ </p> <p> <br /> </p> <p> 1）摩擦力大，需精確定位的場合。例如高溫、低溫調節(jié)閥或采用柔性石墨填料的調節(jié)閥； </p> <p> 2）緩慢過程需提高調節(jié)閥響應速度的場合。例如，溫度、液位、分析等參數(shù)的調節(jié)系統(tǒng)。 </p> <p> 3）需要提高執(zhí)行機構輸出力和切斷力的場合。例如，DN≥25的單座閥，DN＞100的雙座閥。閥兩端壓降△P＞1MPa或入口壓力P1＞10MPa的場合，河北鋼廠真空管道蝶閥等級，河北鋼廠真空管道蝶閥等級。 </p> <p> 4）分程調節(jié)系統(tǒng)和調節(jié)閥運行中有時需要改變氣開、氣關形式的場合，河北鋼廠真空管道蝶閥等級。 </p> <p> 5）需要改變調節(jié)閥流量特性的場合。頂耕國際貿易有限公司是生產(chǎn)真空閥門的專業(yè)性公司.擁有各種真空球閥、真空蝶閥、真空擋板閥等！河北鋼廠真空管道蝶閥等級</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北鋼廠真空管道蝶閥等級,真空管道蝶閥" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494101563/3079327.png"></div><p> 主要分類 </p> <p> 按驅動方式分 </p> <p> (1)電動蝶閥 </p> <p> (2)氣動蝶閥 </p> <p> (3)液動蝶閥 </p> <p> (4)手動蝶閥 </p> <p> 按結構形式分： </p> <p> (1)中心密封蝶閥 </p> <p> (2)單偏心密封蝶閥 </p> <p> (3)雙偏心密封蝶閥 </p> <p> (4)三偏心密封蝶閥 </p> <p> 密封面材質分： </p> <p> (1)軟密封蝶閥。 </p> <p> 1)密封副由非金屬軟質材料對非金屬軟質材料構成。 </p> <p> 2)密封副由金屬硬質材料對非金屬軟質材料構成。 </p> <p> (2)金屬硬密封蝶閥。密封副由金屬硬質材料對金屬硬質材料構成。 </p> <p> 按工作壓力分： </p> <p> (1)真空蝶閥。工作壓力低于標堆大氣壓的蝶閥。 </p> <p> (2)低壓蝶閥。公稱壓力PN<1．6MPa的蝶閥。 </p> <p> (3)中壓蝶閥。公稱壓力PN為2．5--6．4MPa的蝶閥。 </p> <p> (4)高壓蝶閥。公稱壓力PN為10.0--80．0MPa的蝶閥。 </p> <p> (5)超高壓蝶閥。公稱壓力PN>100MPa的蝶閥。 </p> <p> 按連接方式分： </p> <p> 1、對夾式蝶閥 </p> <p> 對夾式蝶閥的蝶板安裝于管道的直徑方向。閥門則呈全開狀態(tài)。 </p> <p> 對夾式蝶閥結構簡單、體積小、重量輕。蝶閥有彈性密封和金屬密封兩種密封型式。彈性密封閥門，密封圈可以鑲嵌在閥體上或附在蝶板周邊。 </p> <p> 2、法蘭式蝶閥 </p> <p> 法蘭式蝶閥為垂直板式結構，閥桿為整體式金屬硬密封閥門的密封圈 </p> <p> 為柔性石墨板與不銹鋼板復合式結構，安裝在閥體上，蝶板密封面堆焊不銹鋼。軟密封閥門的密封圈為丁腈橡膠材質，是安裝在蝶板上的。 </p> <p> 3、凸耳式蝶閥 </p> <p> 4、焊接式蝶閥遼寧鋼廠真空管道蝶閥口徑頂耕國際貿易（上海）有限公司專業(yè)致力于真空閥門及真空管道件的研發(fā)、制造與銷售！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北鋼廠真空管道蝶閥等級,真空管道蝶閥" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129749325380860/6768130.png"></div><p> 在所有閥門驅動裝置中,電動和薄膜式氣動裝置應用**廣。電動裝置主要用在閉路閥門上;薄膜式氣動裝置主要用在調節(jié)閥上。電磁傳動主要用于小口徑閥門上。置入式的波紋管傳動裝置主要用在閥瓣的行程不大的閥門上和有腐蝕性和毒性的介質中。但它的使用范圍往往受控制主傳動裝置的輔助的先導裝置的限制。 </p> <p> <br /> </p> <p> 對閥門驅動裝置的一項特殊要求是,必須能夠限定轉矩或軸向力。閥門電動裝置采用限制轉矩的聯(lián)軸器。在液動和氣動驅動裝置中,其比較大作用力取決于膜片或活塞的有效面積以及驅動介質的壓力。也可以用彈簧來限制所傳遞的作用力。 </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。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。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(jīng)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。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。頂耕國際貿易（上海）有限公司為客戶提供更好的解決方案、創(chuàng)造更好的效益，我們期待與您合作共贏！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北鋼廠真空管道蝶閥等級,真空管道蝶閥" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129736101689453/4021167.png"></div><p> 1、蝶閥具有結構簡單、體積小、重量輕、材料耗用省，安裝尺寸小，開關迅速、90°往復回轉，驅動力矩小等特點，用于截斷、接通、調節(jié)管路中的介質，具有良好的流體控制特性和關閉密封性能。 </p> <p> 2、蝶閥可以運送泥漿，在管道口積存液體**少。低壓下，可以實現(xiàn)良好的密封。調節(jié)性能好。 </p> <p> 3、蝶板的流線型設計，使流體阻力損失小，可謂是一種節(jié)能型產(chǎn)品。 </p> <p> 4、閥桿為通桿結構，經(jīng)過調質處理，有良好的綜合力學性能和抗腐蝕性，抗擦傷性。蝶閥啟閉時閥桿只作旋轉運動而不作升降運行，閥桿的填料不易破壞，密封可靠。與蝶板錐銷固定，外伸端為防沖出型設計，以免在閥桿與蝶板連接處意外斷裂時閥桿崩出。 </p> <p> 5、連接方式有法蘭連接、對夾連接、對焊連接及凸耳對夾連接。 </p> <p> 驅動形式有手動、蝸輪傳動、電動、氣動、液動、電液聯(lián)動等執(zhí)行機構，可實現(xiàn)遠距離控制和自動化操作。石化**閥、超高溫閥門、大型燃氣輪機蒸汽再熱閥等產(chǎn)品將面臨較為廣闊的市場需求！上海真空精煉真空管道蝶閥等級</p><p style="text-indent:25px">DN4000蝶閥圖頂耕國際貿易有限公司研發(fā)的大口徑真空蝶閥系列產(chǎn)品！河北鋼廠真空管道蝶閥等級</p><p> 6、銅合金銅合金常用材料有6-6-3錫青銅和58-2-2錳黃銅等。銅合金耐磨性好，適用于溫度t≤200℃、公稱壓力PN≤，常用于閘閥、截止閥、止回閥、旋塞閥等。7、鉻不銹鋼鉻不銹鋼常用牌號有2Cr13、3Cr13經(jīng)調質處理，耐腐蝕性能好。常用于溫度t≤450℃、公稱壓力PN≤32MPa的水、蒸汽和石油等介質的閥門上。8、鉻鎳鈦不銹鋼鉻鎳鈦不銹鋼常用牌號為1Cr18Ni9ti，其耐腐性、耐沖蝕性和耐熱性能較好。適用于溫度t≤600℃、公稱壓力PN≤、硝酸等介質中，用于截止閥、球閥等。9、滲氮鋼滲氮鋼常用牌號是38CrMoAlA，經(jīng)滲碳處理，具有良好的耐腐蝕性和抗擦傷性。常用于溫度t≤540℃、公稱壓力PN≤10MPa的電站閘閥。10、滲硼滲硼由閥體或閥瓣本體材料直接加工出密封面，再進行滲硼表面處理，密封面耐磨性能很好。用于電站排污閥。閥門在使用中，應該注意的事項如：1、應對閥門的密封性能進行試驗，確保其性能。2、應查看閥門密封面是否磨損，并根據(jù)情況進行維修或更換。河北鋼廠真空管道蝶閥等級</p><p style="text-indent:25px">頂耕國際貿易（上海）有限公司是一家從事貨物進出口及技術進出口業(yè)務，金屬材料、五金交電、機電設備、電子產(chǎn)品儀器儀表、建筑材料、裝飾材料、塑料制品、辦公設備、工藝禮品、通訊設備、化工原料及產(chǎn)品（除危險化學品、監(jiān)控化學品、民用物品、易制毒化學品）、汽年配件、皮革制品、紙制品、服裝、鞋帽、針紡織品、日用百貨、文具用品、珠寶首你、家屋用品、家具批發(fā)、零售，機械設備制造、加工（以上限分支機經(jīng)營）、批發(fā)、零售，商務信息咨詢。的公司，致力于發(fā)展為創(chuàng)新務實、誠實可信的企業(yè)。公司自創(chuàng)立以來，投身于振動給料機，電動缸，切磚機，真空主閥，是機械及行業(yè)設備的主力軍。頂耕貿易致力于把技術上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗。頂耕貿易始終關注機械及行業(yè)設備市場，以敏銳的市場洞察力，實現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1444995.html</p></div></div></div></div></div><div id="jmdu2km" class="page-right twoColRt"><div id="qek323l" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="zhdzvmx" 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" 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