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clearfix tcPro"><section class="home-main container clearfix"><div id="e8l7xjl" class="twoCol"><div id="xmtq2nj" 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_qitafamenbd/">其他閥門</a>?海西州止回閥廠家供應甘肅誠禹惠物資供應</p><div id="wqikrya" class="leftbox clearfix"><h1>海西州止回閥廠家供應甘肅誠禹惠物資供應</h1><div id="mbyqnkw" class="proBig"><div id="uoqnpw2" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024476875000/9919477.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="gp27cz7" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024476875000/9919477.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="th2efmj" 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>甘肅省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>海西州止回閥廠家供應,止回閥</p><p><span>***更新：</span>2021-01-10 02:11:14</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="dhzgikw" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">甘肅誠禹惠物資有限公司</a></p><p><span>聯(lián)系人：</span>楊和平</p><p><span>郵箱: </span>349134533@qq.com</p><p><span>電話: </span>18294448288</p><p><span>傳真: </span>0931_</p><p><span>網(wǎng)址: </span>http://www.gscyhwz.com</p><p><span>手機: </span>0931-7840458</p><p><span>地址: </span>北濱河西路1226之27號(立達建材城A區(qū)11棟104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="xm8czg7" class="page-proshow02"><p class="title">詳細說明</p><div id="k2ystqc" class="box"><p><p> <span style="font-size:16px;">止回閥是指依靠介質(zhì)本身流動而自動開，海西州止回閥廠家供應、閉閥瓣，用來防止介質(zhì)倒流的閥門，又稱逆止閥、單向閥、逆流閥、和背壓閥。止回閥屬于一種自動閥門，其主要作用是防止介質(zhì)倒流、防止泵及驅(qū)動電動機反轉(zhuǎn)，以及容器介質(zhì)的泄放止回閥根據(jù)其結(jié)構(gòu)和安裝方式主要分為：升降式止回閥、旋啟式止回閥、蝶式止回閥、管道式止回閥和壓緊式止回閥。作為配管專業(yè)當然就是要考慮止回閥的安裝方式</span><span style="font-size:16px;">了。止回閥的安裝要求：1.升降式止回閥，閥瓣是沿著閥體垂直中心線滑動的止回閥，閥門型號是H41——，升降式止回閥只能安裝在水平管道上。2.旋啟式止回閥，閥瓣是圍繞閥座外的銷軸旋轉(zhuǎn)的止回閥，閥門型號是H44——，水平和垂直管道都可以，只是安裝方向有要求。不過比較好還是水平安裝，當然對于介質(zhì)流動方向為從下到上的，也可以垂直安裝，海西州止回閥廠家供應。3.碟式止回閥，閥瓣圍繞閥座內(nèi)的銷軸旋轉(zhuǎn)，閥門型號是H45——，碟式止只能安裝在水平管道上。4，海西州止回閥廠家供應.管道式止回閥，它的閥瓣是沿著閥體中心線滑動的閥門，水平和垂直方向都可以，但是也是需要注意安裝方向的。5.壓緊式止回閥：一般是鍋爐給水和蒸汽切斷用閥，它具有升降式止回閥和截止閥或角閥的綜合機能，也是需要水平安裝。</span> 它依靠管道內(nèi)流動介質(zhì)的壓力推動閥瓣，來實現(xiàn)閥門的關閉和開啟。海西州止回閥廠家供應</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="海西州止回閥廠家供應,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024476875000/9919477.png"></div><p> <span style="font-size:16px;">升降式止回閥：閥瓣沿著閥體垂直中心線滑動的止回閥，升降式止回閥只能安裝在水平管道上，在高壓小口徑止回閥上閥瓣可采用圓球。升降式止回閥的閥體形狀與截止閥一樣（可與截止閥通用），因此它的流體阻力系數(shù)較大。其結(jié)構(gòu)與截止閥相似，閥體和閥瓣與截止閥相同。閥瓣上部和閥蓋下部加工有導向套簡，閥瓣導向簡可在閥盞導向簡內(nèi)自由升降，當介質(zhì)順流時，閥瓣靠介質(zhì)推力開啟，當介質(zhì)停流時，閥瓣靠自垂降落在閥座上，起阻止介質(zhì)逆流作用。直通式升降止回閥介質(zhì)進出口通道方向與閥座通道方向垂直；立式升降式止回閥，其介質(zhì)進出口通道方向與閥座通道方向相同，其流動阻力較直通式小。旋啟式止回閥有一個斜置并能繞軸旋轉(zhuǎn)的閥瓣，工作原理與升降式止回閥相似。止回閥常用作抽水裝置的底閥，可以阻止</span><span style="font-size:16px;">水的回流。止回閥與截止閥組合使用，可起到安全隔離的作用。缺點是阻力大，關閉時密封性差。</span> 海西州止回閥廠家供應不宜用于沖刷比較嚴重的工況;</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="海西州止回閥廠家供應,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024241562500/2823839.png"></div><p> <span style="font-size:16px;">碟式止回閥：閥瓣圍繞閥座內(nèi)的銷軸旋轉(zhuǎn)的止回閥。碟式止回閥結(jié)構(gòu)簡單，只能安裝在水平管道上，密封性較差。四、管道式止回閥：閥瓣沿著閥體中心線滑動的閥門。管道式止回閥是新出現(xiàn)的一種閥門，它的體積小，重量較輕，加工工藝性好，是止回閥發(fā)展方向之一。但流體阻力系數(shù)比旋啟式止回閥略大。壓緊式止回閥：這種閥門是做為鍋爐給水和蒸汽切斷用閥，它具有升降式止回閥和截止閥或角閥的綜合機能。此外，還有些不適用于泵出口安裝的止回閥，如底閥、彈簧式，Y型等。止回閥又叫逆止閥，是一種自動閥門。它依靠管道內(nèi)流動介質(zhì)的壓力推動閥瓣，來實現(xiàn)閥門的關閉和開啟，當介質(zhì)停止流動，止回閥閥瓣關閉，它能有效防止管道內(nèi)介質(zhì)發(fā)生倒流，這對于保障管道的安全起到了很大的作用。</span> </p><p> <span style="font-size:16px;">止回閥的作用是“止回”，但其副作用是“增加排煙阻力”，而一個好的止回閥是保證止回的同時達到排煙阻力小。那么究竟如何選購煙道止回閥呢？小編總結(jié)出了選購三要點：1、單擋板止回閥在排煙阻力方面不給力，而雙開型止回閥通風比較大、不進煙道、完全通用，解決了單檔板止回閥在公共煙道仍然會返味的問題；2、效果好的止回閥是有橡膠或硅膠密封圈的；3、止回閥的擋板和框之間，是平面與立面相接的才是好止逆閥。由于現(xiàn)在市面上大部分抽油煙機里都會有一個煙道止回閥，所以小編建議大家把自己購買的止回閥安裝在煙道口上，但是也要注意長久使用以后油漬沾到葉片導致葉片吹不起來或吹起來合不上去，影響了吸煙的效果，葉片合不上跟沒安裝止回閥是一樣的，所以定期檢查煙道止回閥是很有必要的。</span> 泵前安裝與泵后安裝止回閥有何區(qū)別？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="海西州止回閥廠家供應,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024406582031/6664710.png"></div><p> <span style="font-size:16px;">對夾止回閥又稱為逆流閥、逆止閥、背壓閥、單向閥。這類閥門是靠管路中介質(zhì)本身的流動產(chǎn)生的力而自動開啟和關閉的，屬于一種自動閥門。由于閥體、閥瓣、閥蓋等組成，閥瓣在液壓的作用下打開，并限制在閥蓋的凸臺上，流體經(jīng)閥瓣外邊通過，當出口壓力大于進口壓力是，閥瓣就在液壓力和彈簧力的作用下關閉制止了流體的返流。結(jié)構(gòu)長度短，其結(jié)構(gòu)長度只有傳統(tǒng)法蘭止回閥的1/4~1/82、體積小、重量輕、其重量只有傳統(tǒng)法蘭止回閥的1/4~1/203、閥瓣關閉快速，水錘壓力小4、水平或垂直管道均可使用，安裝方便5、流道通暢、流體阻力小6、動作靈敏、密封性能好7、閥瓣行程短、關閥沖擊力小8、整體結(jié)構(gòu)、簡單緊湊、造型美觀9、使用壽命長、可靠性高。</span> 由于具有彈簧輔助復位結(jié)構(gòu)，故對于介質(zhì)壓力較低的工況條件，應特殊設定彈簧剛度，規(guī)定裂隙壓力;海西州止回閥廠家供應</p><p style="text-indent:25px">蝶式止回閥分為蝶式雙瓣、蝶式單瓣。海西州止回閥廠家供應</p><p> <span style="font-size:16px;">倒流防止器和止回閥的區(qū)別1，功能方面倒流防bai止器主要用于防止水的回du流，即使其內(nèi)部所有可能的密封全部失效,仍能確保不發(fā)生dao回流污染事故.是保障水質(zhì)的**技術措施.止回閥主要用于保證水的單向流動，防止水倒流.但無防污性能,當止回密封面失效，不能有效防止水的回流污染。設有倒流防止器的管段,不需要再設止回閥；反之不能替代。2，結(jié)構(gòu)方面止回閥只有單級止回密封結(jié)構(gòu),結(jié)構(gòu)長度小,自重輕減壓型倒流防止器包含有兩個**止回密封+自動感應的泄水器,體長質(zhì)重.低阻力倒流防止器包含兩級止回密封+**式自動泄水器，外形小,自重輕3，水頭損失方面止回閥的水頭損失一般小于；減壓型倒流防止器的水頭損失:一般在。為低壓隔斷形式，如果水損過低,隔斷安全性將無法保證；低阻力倒流防止器的水頭損失小于。</span> 海西州止回閥廠家供應</p><p style="text-indent:25px">甘肅誠禹惠物資有限公司致力于機械及行業(yè)設備，是一家服務型公司。公司業(yè)務涵蓋誠禹惠閥門，球閥批發(fā)，閥門批發(fā)，蝶閥批發(fā)等，價格合理，品質(zhì)有保證。公司注重以質(zhì)量為中心，以服務為理念，秉持誠信為本的理念，打造機械及行業(yè)設備良好品牌。甘肅誠禹惠物資憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2777191.html</p></div></div></div></div></div><div id="j2wnjar" class="page-right twoColRt"><div id="s3ikho2" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="dczbtax" class="recomPic likePro"><a 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