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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="3ya4zuw" class="twoCol"><div id="yxu9dar" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<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(mén)</a>?<a href="http://www.cdcfah.com/cp/third-famenti_diefakna/">蝶閥</a>?四川RH真空管道蝶閥品牌頂耕國(guó)際貿(mào)易供應(yīng)</p><div id="3hjyamj" class="leftbox clearfix"><h1>四川RH真空管道蝶閥品牌頂耕國(guó)際貿(mào)易供應(yīng)</h1><div id="v8ianpb" class="proBig"><div id="zyvpria" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494296875/3009218.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="smeoqhz" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494296875/3009218.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="f2k2w22" 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>四川RH真空管道蝶閥品牌,真空管道蝶閥</p><p><span>***更新：</span>2020-09-27 13:04:45</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="nh2f78n" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">頂耕國(guó)際貿(mào)易（上海）有限公司</a></p><p><span>聯(lián)系人：</span>查劍來(lái)</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="c23jymt" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="pjd2dso" class="box"><p><p> 其質(zhì)量直接影響閥門(mén)的使用壽命。合理地選擇閥門(mén)密封面的材料是提高閥門(mén)使用壽命的重要途徑之一，四川RH真空管道蝶閥品牌。在閥門(mén)密封面材料選用時(shí)應(yīng)避免走入誤區(qū)。誤區(qū)1:閥門(mén)密封面材料的硬度高其耐磨損性能就好，四川RH真空管道蝶閥品牌。實(shí)驗(yàn)表明,閥門(mén)密封面材料的耐磨損性能是由其金屬材料的組織結(jié)構(gòu)所決定的。有些以?shī)W氏體為基體加少量硬質(zhì)相結(jié)構(gòu)的金屬材料其硬度并不很高,但其耐磨損性能很好，四川RH真空管道蝶閥品牌。閥門(mén)密封面具有一定的高硬度是為避免被介質(zhì)中硬雜物墊傷和劃傷。綜合考慮,硬度值HRC35~45為宜。誤區(qū)2:閥門(mén)密封面材料的價(jià)格高其性能就好。材料的價(jià)格是其本身的商品特性,而材料的使用性能是其物理特性,兩者沒(méi)有必然聯(lián)系。鈷基合金中金屬鈷來(lái)源于進(jìn)口,價(jià)格較高,因而鈷基合金材料價(jià)格就高。鈷基合金的特點(diǎn)是高溫耐磨性能好,而用在常溫、中溫工況,則價(jià)格/性能比較高。在閥門(mén)密封面材料選用時(shí)應(yīng)選擇價(jià)格/性能比較低的材料。誤區(qū)3:閥門(mén)密封面材料在某一強(qiáng)腐蝕性介質(zhì)中耐蝕性良好,就一定適應(yīng)其他腐蝕性介質(zhì)。金屬材料的耐腐蝕性有其復(fù)雜的機(jī)理,一種材料在某一強(qiáng)腐蝕介質(zhì)中耐蝕性能良好,而條件稍有變化,如溫度或介質(zhì)濃度等改變,則耐蝕性能即改變。對(duì)另一種腐蝕性介質(zhì),其耐蝕性能變化更大。金屬材料的耐腐蝕性只能通過(guò)實(shí)驗(yàn)得知。頂耕國(guó)際貿(mào)易（上海）有限公司“以科技為本，以質(zhì)量求生存，以信譽(yù)求市場(chǎng)，以管理求效益”為企業(yè)方針。四川RH真空管道蝶閥品牌</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川RH真空管道蝶閥品牌,真空管道蝶閥" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494296875/3009218.png"></div><p> 德國(guó)FSA FDEK系列真空主閥的結(jié)構(gòu)形式為金屬硬密封碟閥，在容許的溫度和壓力范圍內(nèi)，可對(duì)介質(zhì)的流通實(shí)現(xiàn)關(guān)斷和調(diào)控。標(biāo)準(zhǔn)產(chǎn)品口徑從DN800到DN2000，也可接受其他尺寸要求。目前在國(guó)內(nèi)鋼廠，特別是在RH精煉工藝中應(yīng)用十分很多，市場(chǎng)占有率高達(dá)97%，并得到用戶一致認(rèn)可。 </p> <p> ? 工況條件如下： </p> <p> 介質(zhì)：含灰塵氣體 </p> <p> 溫度：≤350℃ </p> <p> 工作壓差：≤1bar </p> <p> 閥門(mén)開(kāi)閉時(shí)間：約30S </p> <p> 液壓站防護(hù)等級(jí)：IP55 </p> <p> 電控柜防護(hù)等級(jí)：IP67 </p> <p> 密封等級(jí)：DIN EN 12266 rate A(零泄漏) </p> <p> <br /> </p> <p> <br /> 湖北煉鋼廠真空管道蝶閥品牌頂耕國(guó)際貿(mào)易（上海）有限公司有著多年的專(zhuān)業(yè)知識(shí)，期待您的咨詢！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川RH真空管道蝶閥品牌,真空管道蝶閥" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737496279297/8393517.png"></div><p> 閥門(mén)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(chēng)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(shì)在于摩擦系數(shù)小、耐腐蝕性好。這種材料多用于溫度≤90℃、公稱(chēng)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(mén)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(chēng)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(chēng)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(chēng)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(chēng)壓力≤32公斤的水、蒸汽和石油等介質(zhì)的閥門(mén)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(zhì)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(chēng)壓力≤60公斤的蒸汽、硝酸等介質(zhì)中 </p><p> 真空閥門(mén)是指閥門(mén)內(nèi)腔為真空狀態(tài)，通常叫負(fù)壓，內(nèi)腔壓力低于大氣壓，用于真空管道系統(tǒng)的閥門(mén)，有真空球閥，真空蝶閥，真空隔膜閥等。介質(zhì)為高純度。 </p> <p> 球閥、閘閥、截止閥等等均能生產(chǎn)成真空閥和普通常規(guī)閥門(mén)。從外形上無(wú)區(qū)別，在閥門(mén)連接部位設(shè)計(jì)上是有分別的，只是細(xì)節(jié)上的問(wèn)題。 </p> <p> 真空閥門(mén)相對(duì)于正壓閥門(mén)具有下列特點(diǎn)： </p> <p> 壓力低于大氣壓，而閥瓣上的壓降不能超過(guò)1公斤力/厘米2。介質(zhì)的工作溫度取決于使用裝置的工藝過(guò)程。溫度一般不超過(guò)-70 ~ +150℃的范圍。 </p> <p> 對(duì)這類(lèi)閥門(mén)**基本的要求是保證連接的高度密封性和結(jié)構(gòu)與墊片材料的致密性。 </p> <p> 按介質(zhì)壓力真空閥門(mén)可分成四組： </p> <p> 1）低真空閥門(mén)：介質(zhì)壓力p=760~1毫米汞柱； </p> <p> 2）中真空閥門(mén)：p=1×10-3 毫米汞柱。 </p> <p> 3）高真空閥門(mén)：p=1×10-4 ~1×10-7 毫米汞柱； </p> <p> 4）超高真空閥門(mén)：p≤1×10-8 毫米汞柱。 </p> <p> 真空閥門(mén)很多采用的的閥桿作直線運(yùn)動(dòng)的真空波紋管截止閥。閘閥卻受到較大的限制，但大通徑來(lái)說(shuō)，可用的還有球閥、柱塞閥和蝶閥。高性能襯膠蝶閥高性能襯膠蝶閥是一種結(jié)構(gòu)精巧的襯膠蝶閥。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川RH真空管道蝶閥品牌,真空管道蝶閥" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129736101689453/4021167.png"></div><p> 蝶閥的選用原則： </p> <p> <br /> </p> <p> 1、由于蝶閥相對(duì)于閘閥，球閥壓力損失比較大，故適應(yīng)于壓力損失要求不嚴(yán)的管路系統(tǒng)中 </p> <p> <br /> </p> <p> 2、由于蝶閥可以用流量調(diào)節(jié)，故在需要進(jìn)行流量調(diào)節(jié)的管路中宜于選用 </p> <p> <br /> </p> <p> 3、由于蝶閥的結(jié)構(gòu)和密封材料的限制，不宜用于高溫，高壓的管路系統(tǒng)。一般工作溫度在300℃以下，公稱(chēng)壓力在PN40以下。 </p> <p> <br /> </p> <p> 4、由于蝶閥結(jié)構(gòu)長(zhǎng)度比較短，且又可以做成大口徑，故在結(jié)構(gòu)長(zhǎng)度要求短的場(chǎng)合或是大口徑閥門(mén)（如DN1000以上），宜選用蝶閥。 </p> <p> <br /> </p> <p> 5、由于蝶閥*旋轉(zhuǎn)90°就能開(kāi)啟或關(guān)閉，因此在啟閉要求快的場(chǎng)合宜選用蝶閥。頂耕國(guó)際貿(mào)易（上海）有限公司專(zhuān)業(yè)從事真空閥門(mén)研發(fā)、設(shè)計(jì)、制造、銷(xiāo)售和服務(wù)。四川RH真空管道蝶閥品牌</p><p style="text-indent:25px">頂耕國(guó)際貿(mào)易有限公司是生產(chǎn)真空閥門(mén)的專(zhuān)業(yè)性公司.擁有各種真空球閥、真空蝶閥、真空擋板閥等！四川RH真空管道蝶閥品牌</p><p> 1)非金屬材料：如紙、麻、牛皮、石棉制品、塑料、橡膠等。紙、麻、牛皮之類(lèi)，有毛細(xì)孔，易滲透，使用時(shí)須浸漬油、蠟或其他防滲透材料。一般閥門(mén)很少采用。石棉制品，又有石棉帶、繩、板和石棉橡膠板等。其中石棉橡膠板結(jié)構(gòu)致密，耐壓性能好，耐溫性能也很好，閥門(mén)自己和閥門(mén)與管子法蘭毗連中，使用極為普遍。塑料制品，有很好耐侵蝕性能，使用也較普遍。品種有聚乙烯、聚丙烯、軟聚氯乙烯、聚四氟乙烯、尼龍66、尼龍1010等。橡膠制品，質(zhì)柔軟，各類(lèi)橡膠劃分有一定耐酸、耐堿、耐油、耐海水能力。品種有自然橡膠、丁苯橡膠、丁腈橡膠、氯丁橡膠、異丁橡膠、聚氨酯橡膠、氟橡膠等。(2)金屬材料：一般說(shuō)，金屬材料強(qiáng)度高，耐溫性能強(qiáng)。但鉛其實(shí)不這樣，*取它耐稀硫酸特征。經(jīng)常使用品種有黃銅、紫銅、鋁、低碳鋼、不銹鋼、蒙乃爾合金、銀、鎳等。(3)復(fù)合材料：例如金屬包皮(內(nèi)部石棉)墊圈、組合波形墊圈、環(huán)繞糾纏墊圈等。2)經(jīng)常使用墊圈性能使用閥門(mén)時(shí)，往往具體情況，更換原帶墊圈。常有墊圈有：橡膠平墊圈、橡膠O形圈、塑料平墊圈、聚四氟乙烯包墊圈、石棉橡膠墊圈、金屬平墊圈、金屬異形墊圈、金屬包皮墊圈、波形墊圈、環(huán)繞糾纏墊圈等。(1)橡膠平墊圈：變形容易。四川RH真空管道蝶閥品牌</p><p style="text-indent:25px">頂耕國(guó)際貿(mào)易（上海）有限公司是一家從事貨物進(jìn)出口及技術(shù)進(jìn)出口業(yè)務(wù)，金屬材料、五金交電、機(jī)電設(shè)備、電子產(chǎn)品儀器儀表、建筑材料、裝飾材料、塑料制品、辦公設(shè)備、工藝禮品、通訊設(shè)備、化工原料及產(chǎn)品（除危險(xiǎn)化學(xué)品、監(jiān)控化學(xué)品、民用物品、易制毒化學(xué)品）、汽年配件、皮革制品、紙制品、服裝、鞋帽、針紡織品、日用百貨、文具用品、珠寶首你、家屋用品、家具批發(fā)、零售，機(jī)械設(shè)備制造、加工（以上限分支機(jī)經(jīng)營(yíng)）、批發(fā)、零售，商務(wù)信息咨詢。的公司，是一家集研發(fā)、設(shè)計(jì)、生產(chǎn)和銷(xiāo)售為一體的專(zhuān)業(yè)化公司。頂耕貿(mào)易作為從事貨物進(jìn)出口及技術(shù)進(jìn)出口業(yè)務(wù)，金屬材料、五金交電、機(jī)電設(shè)備、電子產(chǎn)品儀器儀表、建筑材料、裝飾材料、塑料制品、辦公設(shè)備、工藝禮品、通訊設(shè)備、化工原料及產(chǎn)品（除危險(xiǎn)化學(xué)品、監(jiān)控化學(xué)品、民用物品、易制毒化學(xué)品）、汽年配件、皮革制品、紙制品、服裝、鞋帽、針紡織品、日用百貨、文具用品、珠寶首你、家屋用品、家具批發(fā)、零售，機(jī)械設(shè)備制造、加工（以上限分支機(jī)經(jīng)營(yíng)）、批發(fā)、零售，商務(wù)信息咨詢。的企業(yè)之一，為客戶提供良好的振動(dòng)給料機(jī)，電動(dòng)缸，切磚機(jī)，真空主閥。頂耕貿(mào)易不斷開(kāi)拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺(tái)，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。頂耕貿(mào)易始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專(zhuān)注與執(zhí)著使頂耕貿(mào)易在行業(yè)的從容而自信。</p></p><br 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