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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="rfdbj55" class="twoCol"><div id="3p7znj5" 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>?湖南RH真空管道蝶閥維修電話頂耕國際貿易供應</p><div id="pdtzf3n" class="leftbox clearfix"><h1>湖南RH真空管道蝶閥維修電話頂耕國際貿易供應</h1><div id="7z5jr3r" class="proBig"><div id="vvtr3hx" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737718496094/8657721.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="zh7zhnj" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737718496094/8657721.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="z5fbrf5" class="content"><p><span>需求數量：</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>湖南RH真空管道蝶閥維修電話</p><p><span>***更新：</span>2020-05-25 09:43:11</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="rx5fdbn" 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="xpdt7bz" class="page-proshow02"><p class="title">詳細說明</p><div id="xfd3zxd" class="box"><p><p> 1、蝶閥具有結構簡單，湖南RH真空管道蝶閥維修電話、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，湖南RH真空管道蝶閥維修電話，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)能型產品。 </p> <p> 4、閥桿為通桿結構，經過調質處理，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，湖南RH真空管道蝶閥維修電話，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。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南RH真空管道蝶閥維修電話" src="https://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737718496094/8657721.jpg"></div><p> 閥門密封是整個閥門中**重要的組成部分，其主要目的就是防止泄露，閥門密封座也叫密封圈，它是直接接與管路內介質接觸，并且阻止介質流通的一個組織。閥門在使用中，管道內有各種不同的介質，如液體、氣體、油品、腐蝕性的介質等等，而不同的閥門的密封件，使用的地方也不一樣，能夠適應各種不同的介質。那么，閥門密封件材料主要可以分成兩大類，即為金屬材料和非金屬材料，非金屬密封一般多用于常溫常壓的管道，而金屬密封而使用范圍則比較廣，可用于高溫高壓！下面就簡單介紹一下各類密封材料的使用條件，以及常用的閥門類型。1、合成橡膠合成橡膠的耐油、耐溫、耐腐蝕等綜合性能優(yōu)于天然橡膠。一般合成橡膠的使用溫度t≤150℃，天然橡膠t≤60℃，橡膠用于公稱壓力PN≤1MPa的截止閥、閘閥、隔膜閥、蝶閥、止回閥、夾管閥等閥門的密封。2、尼龍尼龍具有摩擦系數小、耐腐蝕性好等特點。尼龍多用于溫度t≤90℃、公稱壓力PN≤32MPa的球閥、截止閥等。3、聚四氟乙烯聚四氟乙烯多用于溫度t≤232℃、公稱壓力PN≤、閘閥、球閥等。4、鑄鐵鑄鐵用于溫度t≤100℃、公稱壓力PN≤、煤氣和油類用的閘閥、截止閥、旋塞閥等。5、巴氏合金巴氏合金用于溫度t-70~150℃、公稱壓力PN≤。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南RH真空管道蝶閥維修電話" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737896542969/9655723.jpg"></div><p> 美國石油協(xié)會標準API 6D(ISO14313)《石油和天然氣工業(yè)一管線輸送系統(tǒng)一管線閥門》對閥門泄漏量的接收準則是：“軟密封閥門和油封旋塞閥的泄漏量不得超過ISO 5208 A級(不得有可見泄漏)，金屬閥座閥門的泄漏量不得超過ISO 5208(1993)D級，但按B．4所述的密封試驗，其泄漏量不能大于ISO 5208(1993)D級的二倍，除另有規(guī)定?！睒藴手凶ⅲ骸疤厥獾膽每梢笮孤┝可儆贗SO 5208(1993)D級¨J。”因此，工程設計中有高于其標準的泄漏量要求，應在訂貨合同中給出。API 6D--2008附錄B附加試驗要求中規(guī)定了在購方規(guī)定時制造廠要作的閥f J附加試驗要求。密封試驗分低壓和高壓氣體密封試驗，以惰性氣體作為試驗介質的高壓密封試驗將取代液體上密封試驗和液體密封試驗。依據閥門的類型、口徑和壓力級別選擇密封試驗，可參考ISO 5208標準的規(guī)定。對于長輸管道GAl、工業(yè)管道GCl上的閥門建議選用低壓密封試驗，可以提高閥門的合格品率。選用高壓密封試驗時應注意彈性密封閥門經高壓密封試驗后，可能降低其在低壓工況的密封性能。應根據介質使用工況實際條件，合理地選用閥門密封試驗要求，可以有效地降低閥門的生產成本。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南RH真空管道蝶閥維修電話" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494296875/3009218.png"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/36184.html</p></div></div></div></div></div><div id="hpn5tzx" class="page-right twoColRt"><div id="hfdrpn5" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="nbhxv33" 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" 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