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href="http://www.cdcfah.com/zh/"><span>展會(huì)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="w2yc4j4" class="twoCol"><div id="h227w7t" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機(jī)械及行業(yè)設(shè)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>?陜西德國真空管道蝶閥制造廠家頂耕國際貿(mào)易供應(yīng)</p><div id="7xzb9gl" class="leftbox clearfix"><h1>陜西德國真空管道蝶閥制造廠家頂耕國際貿(mào)易供應(yīng)</h1><div id="tvwo4uo" class="proBig"><div id="kzw78qs" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737896738282/5305453.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ixzgamv" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737896738282/5305453.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="e2b2onm" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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(guān)鍵詞：</span>陜西德國真空管道蝶閥制造廠家</p><p><span>***更新：</span>2020-05-23 05:29:16</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="fzryiji" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">頂耕國際貿(mào)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(jī): </span>021-61637356</p><p><span>地址: </span>大葉公路5225號(hào)1幢2370室</p><p>[當(dāng)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="w8lshya" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="i7s3t37" class="box"><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，陜西德國真空管道蝶閥制造廠家、旋塞閥等。7、鉻不銹鋼鉻不銹鋼常用牌號(hào)有2Cr13、3Cr13經(jīng)調(diào)質(zhì)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(zhì)的閥門上。8、鉻鎳鈦不銹鋼鉻鎳鈦不銹鋼常用牌號(hào)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(zhì)中，用于截止閥、球閥等。9、滲氮鋼滲氮鋼常用牌號(hào)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(jìn)行滲硼表面處理，陜西德國真空管道蝶閥制造廠家，密封面耐磨性能很好。用于電站排污閥。閥門在使用中，應(yīng)該注意的事項(xiàng)如：1，陜西德國真空管道蝶閥制造廠家、應(yīng)對(duì)閥門的密封性能進(jìn)行試驗(yàn)，確保其性能。2、應(yīng)查看閥門密封面是否磨損，并根據(jù)情況進(jìn)行維修或更換。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西德國真空管道蝶閥制造廠家" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737896738282/5305453.jpg"></div><p> 主要分類 </p> <p> 按驅(qū)動(dòng)方式分 </p> <p> (1)電動(dòng)蝶閥 </p> <p> (2)氣動(dòng)蝶閥 </p> <p> (3)液動(dòng)蝶閥 </p> <p> (4)手動(dòng)蝶閥 </p> <p> 按結(jié)構(gòu)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(zhì)分： </p> <p> (1)軟密封蝶閥。 </p> <p> 1)密封副由非金屬軟質(zhì)材料對(duì)非金屬軟質(zhì)材料構(gòu)成。 </p> <p> 2)密封副由金屬硬質(zhì)材料對(duì)非金屬軟質(zhì)材料構(gòu)成。 </p> <p> (2)金屬硬密封蝶閥。密封副由金屬硬質(zhì)材料對(duì)金屬硬質(zhì)材料構(gòu)成。 </p> <p> 按工作壓力分： </p> <p> (1)真空蝶閥。工作壓力低于標(biāo)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(duì)夾式蝶閥 </p> <p> 對(duì)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(duì)夾式蝶閥結(jié)構(gòu)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(jié)構(gòu)，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(fù)合式結(jié)構(gòu)，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(zhì)，是安裝在蝶板上的。 </p> <p> 3、凸耳式蝶閥 </p> <p> 4、焊接式蝶閥 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西德國真空管道蝶閥制造廠家" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737896250000/4170655.jpg"></div><p> 閥體和閥蓋的泄漏原因：1、鑄鐵件鑄造質(zhì)量不高，閥體和閥蓋體上有砂眼、松散組織、夾渣等缺點(diǎn)；2、天冷凍裂；3、焊接不良，存在著夾渣、未焊接，應(yīng)力裂紋等缺點(diǎn)；4、鑄鐵閥門被重物撞擊后損壞。維護(hù)方法：1、提高鑄造質(zhì)量，安裝前嚴(yán)格按規(guī)定進(jìn)行強(qiáng)度試驗(yàn)；2、對(duì)氣溫在0℃和0℃以下的閥門，應(yīng)進(jìn)行保溫或拌熱，停止使用的閥門應(yīng)排除積水；3、由焊接組成的閥體和閥蓋的焊縫，應(yīng)按有關(guān)焊接操作規(guī)程進(jìn)行，焊后還應(yīng)進(jìn)行探傷和強(qiáng)度試驗(yàn)；4、閥門上禁止推放重物，不允許用手錘撞擊鑄鐵和非金屬閥門，大口徑閥門的安裝應(yīng)有支架。填料處的泄露閥門的外漏，填料處占的比例為比較大。原因：1、填料選用不對(duì)，不耐介質(zhì)的腐蝕，不耐閥門高壓或真空、高溫或低溫的使用；2、填料安裝不對(duì)，存在著以小代大、螺旋盤繞接頭不良、上緊下松等缺點(diǎn)；3、填料超過使用期，已老化，喪失彈性；4、閥桿精度不高，有彎曲、腐蝕、磨損等缺點(diǎn)；5、填料圈數(shù)不足，壓蓋未壓緊；6、壓蓋、螺栓、和其他部件損壞，使壓蓋無法壓緊；7、操作不當(dāng)，用力過猛等；8、壓蓋歪斜，壓蓋與閥桿間空隙過小或過大，致使閥桿磨損，填料損壞。維護(hù)方法：1、應(yīng)按工況條件選用填料的材料和型式；2、按有關(guān)規(guī)定正確的安裝填料。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西德國真空管道蝶閥制造廠家" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737890810547/4528489.jpg"></div></p><br /><p>文章來源地址: 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