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class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產品供應</a>?<a href="http://m.cdcfah.com/cp/first-_jxjxysb/">機械及行業(yè)設備</a>?<a href="http://m.cdcfah.com/cp/second-jxjxysb_famenti/">閥門</a>?<a href="http://m.cdcfah.com/cp/third-famenti_diefakna/">蝶閥</a>?福建德國真空管道蝶閥價格頂耕國際貿易供應</p><div id="mgisoln" class="leftbox clearfix"><h1>福建德國真空管道蝶閥價格頂耕國際貿易供應</h1><div id="mwy2kmo" class="proBig"><div id="s7nfmeg" 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="e3zwt88" 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="r2m38da" 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>福建德國真空管道蝶閥價格</p><p><span>***更新：</span>2020-05-22 18:28:46</p><p><span id="click" >瀏覽次數：4次</span></p><a rel="nofollow" class="button">聯系我們</a></div></div><div id="e32o9e8" 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="qx8shyq" class="page-proshow02"><p class="title">詳細說明</p><div id="3ugvnub" class="box"><p><p> 五金真空閥門是在真空系統中，用來改變氣流方向，調節(jié)氣流量大小，切斷或接通管路的真空系統元件稱為真空閥門。下面對真空閥門進行簡要介紹：高真空插板閥驅動裝置可放置在側面通常插板閥的高度較高，有占設備高度空間大的缺點。為了克服這個缺點我們將驅動裝置設計在側面，這樣**地縮短了閥門的高度尺寸，減少了設備空間的制造成本。高真空蝶閥采用高平臺設計一般氣動、電動高真空蝶閥采用的是支架/連接套的安裝方式，我公司科學設計的直接安裝高平臺，使安裝執(zhí)行器變簡單。小口徑高真空擋板閥閥體均為精密鑄件高科技的精密鑄造工藝和設備，使得不銹鋼鑄件完全能夠獲得致密的**結構。完全沒有“氣孔、疏松、夾砂”等鑄造缺點，福建德國真空管道蝶閥價格。外形整潔，福建德國真空管道蝶閥價格、美觀。閥體漏率指標優(yōu)于。完全適用于超高真空工況條件。GYC-JQ系列電磁高真空壓差式充氣閥的防止返油性能得到**提升經過對高真空壓差式充氣閥的結構進行改進，使得產品性能更加可靠，福建德國真空管道蝶閥價格，更適合機械真空泵工況要求。有以下三個關鍵能性得到了提升：(1).關閥時間縮短到<，更有利于防止返油;(2).開閥時間稍有延時,只有真空度達到了一定的值后閥門才能開啟，如果無壓差時則回到常開的狀態(tài);(3).產品的真空漏率指標得到提高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建德國真空管道蝶閥價格" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494101563/3079327.png"></div><p> 閥門非金屬密封件材料有： </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 1.合成橡膠 </p> <p> <br /> </p> <p> 合成橡膠與天然橡膠相比，有更好的耐油、耐溫、耐酸堿性能。一般合成橡膠的使用溫度≤150℃，天然橡膠≤60℃ </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 2.聚四氟乙烯 </p> <p> <br /> </p> <p> 聚四氟乙烯具有良好的耐腐蝕性，多用于溫度≤232℃、公稱壓力≤64公斤。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 3.尼龍 </p> <p> <br /> </p> <p> 尼龍的優(yōu)勢在于摩擦系數小、耐腐蝕性好。這種材料多用于溫度≤90℃、公稱壓力≤32公斤的球閥、截止閥密封材料中。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 閥門金屬密封件材料有： </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 1.灰鑄鐵 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 灰鑄鐵可以用于溫度在-15~200℃之間、公稱壓力≤16公斤的蝶閥、閘閥、截止閥、旋塞閥等中的密封材料。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 2.球墨鑄鐵 </p> <p> <br /> </p> <p> 球墨鑄鐵作為密封材料可以用在溫度在-30~350℃之間，公稱壓力≤40公斤的蝶閥、閘閥、止回閥，球閥中。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 3.銅合金 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 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≤200℃、公稱壓力≤16公斤的水和蒸汽中 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 4.鉻不銹鋼 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 鉻不銹鋼常用的有2Cr13、3Cr13，耐腐蝕性能好。常用于溫度≤450℃、公稱壓力≤32公斤的水、蒸汽和石油等介質的閥門上。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 5.鉻鎳鈦不銹鋼 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 鉻鎳鈦不銹鋼常用的有1Cr18Ni9ti，該種材質擁有良好的耐腐性、耐沖蝕性和耐熱性能。適用于溫度≤600℃、公稱壓力≤60公斤的蒸汽、硝酸等介質中 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建德國真空管道蝶閥價格" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737896542969/9655723.jpg"></div><p> 電動閥門和氣動閥門相比，前者結構簡單，運行可靠，對遠距離操作點其動力源（電源或氣源）容易解決。缺點是價格較高，且防爆要求也較高。在選用時，應綜合考慮動力源的可獲得性、價格和控制要求等因素。電動閥門選型：當選用電動閥門電動執(zhí)行器的控制模式一般分為開關型和調節(jié)型）時，除了基本的閥體口徑、壓力、材質等要求外，還應提供下列參數： 1.電源參數（包括電壓、相數和頻率）； 2.運行時間和電動執(zhí)行器的形式； 3.是否要求防爆，防爆等級； 4.大氣防護等級； 5.過載保護要求，例如過行程保護、過扭矩保護等； 6.就地操作要求，如是否帶就地操作手輪； 7.操作指示要求。氣動閥門選型：當選用氣動閥門氣動執(zhí)行器的運作原理可分為單作用和雙作用）時，除了確定閥體口徑、壓力、材質等具體參數外，還應在提供下列參數： 1.氣源參數（包括氣源壓力范圍、是否帶自備儲氣罐等） 2.運行時間和氣動執(zhí)行器的形式 3.是否要求防爆，防爆等級； 4.大氣防護等級； 5.過載保護要求，例如過行程保護、過扭矩保護等； 6.就地操作要求，如是否帶就地操作手輪； </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建德國真空管道蝶閥價格" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129736101689453/4021167.png"></div></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/7043.html</p></div></div></div></div></div><div id="kzb7of2" class="page-right twoColRt"><div id="srtnz3n" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="72983j4" class="recomPic likePro"><a href="http://m.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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="3acegn7" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" alt="寧波寧海直接考A2有幾個科目真誠推薦寧波助學商務信息咨詢供應" class="vcenter" 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