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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="r91hhdj" class="twoCol"><div id="bjnrtl7" 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>?江蘇RH真空管道蝶閥品牌頂耕國際貿(mào)易供應</p><div id="pffh7nv" class="leftbox clearfix"><h1>江蘇RH真空管道蝶閥品牌頂耕國際貿(mào)易供應</h1><div id="7vbprpd" class="proBig"><div id="nnt7bbn" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129749328144532/3165155.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dzz5rv7" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129749328144532/3165155.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="zbdnrhz" 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>江蘇RH真空管道蝶閥品牌</p><p><span>***更新：</span>2020-06-08 09:17:23</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="9l5rbxd" 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: </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="n5zh9n1" class="page-proshow02"><p class="title">詳細說明</p><div id="nf511xl" class="box"><p><p> 不銹鋼870℃。其中鉛耐壓能力較差，鋁可耐64千克/平方厘米，其他材料可耐高壓。(7)金屬異性墊圈：透鏡墊圈：有自緊作用，使用于高壓閥門。橢圓形墊圈：也屬于高壓自緊墊圈。錐面雙墊圈：用于高壓內(nèi)自慎密封。此外，還有方形、菱形、三角形、齒形、燕尾形、B形、C形等，一般只高中壓閥門中使用。(8)金屬包皮墊圈：金屬既有***耐溫耐壓性能，又有***彈性。包皮材料有鋁、銅、低碳鋼、不銹鋼、蒙乃爾合金等。里面填充材料有石棉、聚四氟乙烯、玻璃纖維等。(9)波形墊圈：具有壓緊力小，密封效果好特點。常采用金屬與非金屬組合形式，江蘇RH真空管道蝶閥品牌。(10)環(huán)繞糾纏墊圈：是把很薄金屬帶和非金屬帶緊貼一起，環(huán)繞糾纏成多層圓形，斷面呈海浪狀，江蘇RH真空管道蝶閥品牌，有很好彈性和密封性。金屬帶可用08鋼、0Cr13、1Cr13、2Cr13、1Cr18Ni9Ti，江蘇RH真空管道蝶閥品牌、銅、鋁、鈦、蒙乃爾合金等建造。非金屬帶材料有石棉、聚四氟乙烯等。以上，講述密封墊圈性能時，列舉了一些數(shù)字。必需說明，這些數(shù)字跟法蘭形式、介質(zhì)情況和安裝修理技術等有緊密親密關系，可以跨越，達不到，耐壓和耐溫性能，也是相互轉(zhuǎn)化，例如溫度高了，耐壓能力往往下降，這些細微問題，只能實踐中體味。四、閥門密封材料閥門密封材料是閥門密封的重要組成部分。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇RH真空管道蝶閥品牌" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129749328144532/3165155.png"></div><p> 安裝說明： </p> <p> 1、安裝前必須仔細核對閥門的標志、合格證是否符合使用要求，核實后應進行清潔處理。未安裝使用的閥門應存放在干燥的室內(nèi)。保管時間較長的閥門，要定期清洗，吹干、涂防銹油。閥門兩端應用盲板保護法蘭密封面。 </p> <p> 2、根據(jù)介質(zhì)流動方向進行安裝；優(yōu)先考慮臥式安裝。 </p> <p> 3、蝶閥與管道的連接螺栓，安裝時應按對角對方向多次擰緊，不得單件一次擰緊，以防受力不均而造成法蘭連接處泄漏。 </p> <p> 4、蝶閥安裝時，應以蝶板處于關閉位置為宜，防止雜物進入閥腔搓傷密封面，用戶要試壓時，切要兩端用法蘭對夾裝好后試壓。 </p> <p> 5、閥門與管道連接時，要求管道上使用對焊鋼法蘭或蝶閥**法蘭。如果采用平焊鋼法蘭時，必須要求法蘭內(nèi)孔與墊圈內(nèi)孔一樣大，以保證墊圈的有效密封面。 </p> <p> 6、電動蝶閥出廠時已將控制機構(gòu)的啟閉行程調(diào)好，為防止電源接通時方向搞錯，用戶在首先次接通電源前，要先手動至關開位置的1/3初。并檢查指示盤方向與閥門開啟方向是否一致。 </p> <p> 7、閥門在使用時，如發(fā)現(xiàn)故障，應立即停止使用 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇RH真空管道蝶閥品牌" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494101563/3079327.png"></div><p> 閥門選型的要點 </p> <p> <br /> </p> <p> 1、明確閥門在設備或裝置中的用途 </p> <p> <br /> </p> <p> 確定閥門的工作條件：適用介質(zhì)的性質(zhì)、工作壓力、工作溫度和操縱控制方式等。 </p> <p> <br /> </p> <p> 2、正確選擇閥門的類型 </p> <p> <br /> </p> <p> 閥門型式的正確選擇是以設計者對整個生產(chǎn)工藝流程、操作工況的充分掌握為先決條件的，在選擇閥門類型時，設計人員應首先掌握每種閥門的結(jié)構(gòu)特點和性能。 </p> <p> <br /> </p> <p> 3、確定閥門的端部連接 </p> <p> <br /> </p> <p> 在螺紋連接、法蘭連接、焊接端部連接中，前兩種**常用。螺紋連接的閥門主要是公稱通徑在50mm以下的閥門，如果通徑尺寸過大，連接部的安裝和密封十分困難。 </p> <p> <br /> </p> <p> 法蘭連接的閥門，其安裝和拆卸都比較方便，但是較螺紋連接的閥門笨重，價格較高，故它適用于各種通徑和壓力的管道連接。 </p> <p> <br /> </p> <p> 焊接連接適用于較荷刻的條件下，比法蘭連接更為可靠。但是焊接連接的閥門拆卸和重新安裝都比較困難，所以它的使用于通常能長期可靠地運行，或使用條件荷刻、溫度較高的場合。 </p> <p> <br /> </p> <p> 4、閥門材質(zhì)的選擇 </p> <p> <br /> </p> <p> 選擇閥門的殼體、內(nèi)件和密封面的材質(zhì)，除了考慮工作介質(zhì)的物理性能（溫度、壓力）和化學性能（腐蝕性）外，還應掌握介質(zhì)的清潔程度（有無固體顆粒），除此之外，還要參照國家和使用部門的有關規(guī)定。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇RH真空管道蝶閥品牌" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737496894532/5616452.png"></div></p><br /><p>文章來源地址: 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