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class="home-main container clearfix"><div id="78jtaht" class="twoCol"><div id="7bnw2bt" 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>?天津專業(yè)真空管道蝶閥口徑頂耕國際貿易供應</p><div id="7u7pbyv" class="leftbox clearfix"><h1>天津專業(yè)真空管道蝶閥口徑頂耕國際貿易供應</h1><div id="7rgcw83" class="proBig"><div id="edmdzqn" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737896542969/9655723.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="x37gyk3" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737896542969/9655723.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="aelxe3m" 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>天津專業(yè)真空管道蝶閥口徑</p><p><span>***更新：</span>2020-05-25 05:34:05</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="xhjlh7e" 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="b39fctc" class="page-proshow02"><p class="title">詳細說明</p><div id="hwtvxev" class="box"><p><p> 閥門的種類繁多，說法也不完全統(tǒng)一，有的按用途分（如化工、石油、電站等）、有的按介質分（如水蒸汽、空氣閥等）、有的按材質分（如鑄鐵、鑄鋼、鍛鋼、不銹鋼、陶瓷、UPVC等）、有的按連接形式分（如內螺紋、法蘭閥、對夾等）、有的按溫度分（如低溫閥、高溫閥等）。我國大多數(shù)習慣是按壓力和結構種類來區(qū)分。即：按公稱壓力分：≤1.6MPa為低壓閥、壓力2.5、4.0、6.4MPa為中壓閥、≥10MPa為高壓閥、超過100MPa為超高壓閥，天津專業(yè)真空管道蝶閥口徑。按結構種類分主要有： </p> <p> 旋塞閥、閘閥、截止閥、球閥—用于開啟或關閉管道的介質流動。 </p> <p> 止回閥（包括底閥）—用于自動防止管道內的介質倒流。 </p> <p> 節(jié)流閥—用于調節(jié)管道介質的流量。 </p> <p> 蝶閥—用于開啟或關閉管道內的介質。也可作調節(jié)用。 </p> <p> 安全閥—用于鍋爐、容器設備及管道上，當介質壓力超過規(guī)定數(shù)值時，能自動排除過剩介質壓力，保證生產運行安全，天津專業(yè)真空管道蝶閥口徑，天津專業(yè)真空管道蝶閥口徑。 </p> <p> 減壓閥—用于自動降低管道及設備內介質壓力。系使介質經過閥瓣的間隙時，產生阻力造成壓力損失，達到減壓目的。 </p> <p> 疏水器—用于蒸汽管道上自動排除冷凝水，防止蒸汽損失或泄漏。 </p> <p> V型球閥—用于對介質流量進行調節(jié)，流量特性為等百分比。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津專業(yè)真空管道蝶閥口徑" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737896542969/9655723.jpg"></div><p> 德國FSA FDEK系列真空主閥的結構形式為金屬硬密封碟閥，在容許的溫度和壓力范圍內，可對介質的流通實現(xiàn)關斷和調控。標準產品口徑從DN800到DN2000，也可接受其他尺寸要求。目前在國內鋼廠，特別是在RH精煉工藝中應用十分很多，市場占有率高達97%，并得到用戶一致認可。 </p> <p> ? 工況條件如下： </p> <p> 介質：含灰塵氣體 </p> <p> 溫度：≤350℃ </p> <p> 工作壓差：≤1bar </p> <p> 閥門開閉時間：約30S </p> <p> 液壓站防護等級：IP55 </p> <p> 電控柜防護等級：IP67 </p> <p> 密封等級：DIN EN 12266 rate A(零泄漏) </p> <p> <br /> </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津專業(yè)真空管道蝶閥口徑" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494101563/8647630.png"></div><p> 它擔任閥門密封直接接觸的面。那閥門密封材料都有哪些呢，我們知道閥門密封圈材料有金屬和非金屬兩大類。閥門密封材料是閥門密封的重要組成部分，它擔任閥門密封直接接觸的面。那閥門密封材料都有哪些呢，我們知道閥門密封圈材料有金屬和非金屬兩大類。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(shù)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≤。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經調質處理，耐腐蝕性能好。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津專業(yè)真空管道蝶閥口徑" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494296875/9390800.png"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/33066.html</p></div></div></div></div></div><div id="mw7gneq" class="page-right twoColRt"><div id="kel32ev" class="box01 margin10 clearfix"><h3><a 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