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class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="vp3aeqn" class="twoCol"><div id="rgi3vfh" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<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</a>?<a href="http://www.cdcfah.com/cp/third-famenti_qitafamenbd/">其他閥門</a>?蘭州止回閥銷售廠家甘肅誠禹惠物資供應(yīng)</p><div id="3pmoqcz" class="leftbox clearfix"><h1>蘭州止回閥銷售廠家甘肅誠禹惠物資供應(yīng)</h1><div id="8c8dfmd" class="proBig"><div id="oiq3dyk" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024100673828/8890789.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3vuvxeg" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024100673828/8890789.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="c3jzbok" 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(guān)鍵詞：</span>蘭州止回閥銷售廠家,止回閥</p><p><span>***更新：</span>2020-11-02 15:31:30</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="88cz8zu" 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(jī): </span>0931-7840458</p><p><span>地址: </span>北濱河西路1226之27號(立達(dá)建材城A區(qū)11棟104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="hdfx7ik" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="etbmjvx" class="box"><p><p> <span style="font-size:16px;">"止回閥"的選型1為了防止介質(zhì)逆流，在設(shè)備、裝置和管道上都應(yīng)安裝止回閥；2止回閥一般適用于清凈介質(zhì)，不宜用于含有固體顆粒和粘度較大的介質(zhì)；3一般在公稱通經(jīng)50mm的水平管道上都應(yīng)選用立式升降止回閥；4直通式升降止回閥在水平管道和垂直管道上都可安裝；5對于水泵進(jìn)口管路，宜選用底閥，底閥一般只安裝在泵進(jìn)口的垂直管道上，并且介質(zhì)自下而上流動；6升降式旋啟式密封性好，流體阻力大，臥式宜裝在水平管道上，立式裝在垂直管道上；7旋啟式止回閥的安裝位置不受限制，蘭州止回閥銷售廠家，它可裝在水平、垂直或傾斜的管線上，蘭州止回閥銷售廠家，如裝在垂直管道上，介質(zhì)流向要由下而上；旋啟式止回閥不宜制成小口徑閥門，蘭州止回閥銷售廠家、可以做成很高的工作壓力，PN可達(dá)到42MPa，而且DN也可以做到很大，比較大可以達(dá)到2000mm以上。根據(jù)殼體及密封件的材質(zhì)不同可以適用任何工作介質(zhì)和任何工作溫度范圍。介質(zhì)為水、蒸汽、氣體、腐蝕性介質(zhì)、油品、藥品、等。介質(zhì)工作溫度范圍在-196--800℃之間。</span> 止回閥誰來保護(hù)，止回閥是靠壓力差來開關(guān)。蘭州止回閥銷售廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘭州止回閥銷售廠家,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024100673828/8890789.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(jī)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(guān)閉和開啟，當(dāng)介質(zhì)停止流動，止回閥閥瓣關(guān)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> 蘭州止回閥銷售廠家升降式止回閥為高壓小口徑，常采用圓球形閥瓣。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘭州止回閥銷售廠家,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024300068359/4895710.png"></div><p> <span style="font-size:16px;">法蘭式橡膠瓣止回閥主要用于臥式安裝于給排水系統(tǒng)，可安裝于水泵出水口處、以防止倒流及水錘對泵的損害，還可安裝在蓄水池進(jìn)出水管的旁通管上，以防止池水倒流至給水系統(tǒng)中。閥門中的橡膠瓣由鋼板、鋼棒及強(qiáng)化尼龍布做襯底，外層披覆橡膠制成，閥瓣開關(guān)壽命可達(dá)100萬次，采用全流面積設(shè)計，具有水頭損失小，不易堆積雜物，維修簡便等特性。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(guān)閉時密封性差。止回閥這種類型的閥門的作用是只允許介質(zhì)向一個方向流動，而且阻止反方向流動。通常這種閥門是自動工作的，在一個方向流動的流體壓力作用下，閥瓣</span><span style="font-size:16px;">打開；流體反方向流動時，由流體壓力和閥瓣的自重合閥瓣作用于閥座，從而切斷流動。</span> </p><p> <span style="font-size:16px;">依靠介質(zhì)本身的流動自動開，閉閥瓣，介質(zhì)只能單向流動，可防介質(zhì)倒流的閥門叫止回閥。止回閥常用的分為兩種類型:升降式止回閥，旋啟式止回閥。裝置壓濾機(jī)濾餅洗滌泵出口止回閥就屬旋啟止回閥，出現(xiàn)過因閥門兩處連接件腐蝕而不能自由開啟，歸位，造成機(jī)泵運(yùn)行出口震動大，打不起流量停車檢修。壓濾機(jī)濾餅洗滌泵止回閥故障主要是閥瓣連接件腐蝕、搖臂連接件腐蝕，造成閥瓣直接沖頂出口。通過拆除閥蓋連接螺栓，取出兩處連接螺栓并更換而修復(fù)了止回閥。機(jī)泵出口安裝止回閥主要是防止機(jī)泵停車后介質(zhì)倒流形成水錘對機(jī)泵產(chǎn)生影響。止回閥結(jié)構(gòu)簡單易修理，對于經(jīng)常自動啟停的機(jī)泵應(yīng)安裝止回閥，防止葉輪背帽因反轉(zhuǎn)松動，造成機(jī)泵運(yùn)行震動大，葉輪脫落磨蝕泵殼穿孔，更甚者造成斷軸故障停車。</span> 當(dāng)介質(zhì)停止流動，止回閥閥瓣關(guān)閉，它能有效防止管道內(nèi)介質(zhì)發(fā)生倒流。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘭州止回閥銷售廠家,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024352636718/6696423.png"></div><p> <span style="font-size:16px;">止回閥是指啟閉件為圓形閥瓣并靠自身重量及介質(zhì)壓力產(chǎn)生動作來阻斷介質(zhì)倒流的一種閥門。屬自動閥類，又稱逆止閥、單向閥、回流閥或隔離閥。分類及其作用按照閥瓣運(yùn)動方式分為升降式和旋啟式。升降式止回閥與截止閥結(jié)構(gòu)類似，*缺少帶動閥瓣的閥桿。介質(zhì)從進(jìn)口端(下側(cè)）流入，從出口端（上側(cè)）流出。當(dāng)進(jìn)口壓力大于閥瓣重量及其流動阻力之和時，閥門被開啟。反之，介質(zhì)倒流時閥門則關(guān)閉。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(guān)閉時密封性差。安裝方法旋啟式止回閥：旋啟式止回閥的閥瓣呈圓盤狀，繞閥座通道的轉(zhuǎn)軸作旋轉(zhuǎn)運(yùn)動，因閥內(nèi)通道成流線型，流動阻力比升降式止回閥小，適用于低流速和流動不常變化的大口徑場合，但不宜用于脈動流，其密封性能不及升降式。旋啟式止回閥分單瓣式、雙瓣式和</span><span style="font-size:16px;">多半式三種，這三種形式主要按閥門口徑來分，目的是為了防止介質(zhì)停止流動或倒流時，減弱水力沖擊。</span> 升降式止回閥可分為立式和直通式兩種。蘭州止回閥銷售廠家</p><p style="text-indent:25px">對于大直徑管道(例如DN400及以上)，宜采用Tilting旋啟式止回閥;蘭州止回閥銷售廠家</p><p> <span style="font-size:16px;">離心泵出口的止回閥的作用就是防止出口管路中的液體倒流形成水錘造成泵內(nèi)葉輪損傷。止回閥的安裝與泵的多少無關(guān),止回閥主要為了在泵停止運(yùn)行后，防止液體回流，使泵倒轉(zhuǎn),從而造成損壞泵的事故。泵出口止回閥的安裝1、旋啟式止回閥一般安裝在水平管道上：對于口徑DN<80mm的止回閥，也可安裝在垂直或向上傾斜的管道上。2、直通式升降式止回閥應(yīng)安裝在水平管道上;立式升降式止回閥必須安裝在垂直管道上，介質(zhì)為自下而上流動。3、由于止回閥容易損壞，因此，應(yīng)靠近泵出口安裝止回閥，在止回閥上部設(shè)有切斷閥(一般用球閥</span><span style="font-size:16px;">或閘閥)，方便檢修。4、為便于止回閥拆卸前泄壓，對于止回閥本身不帶放凈閥的，應(yīng)在止回閥與切斷閥之間加裝泄壓用放凈閥。</span> 蘭州止回閥銷售廠家</p><p style="text-indent:25px">甘肅誠禹惠物資有限公司主要經(jīng)營范圍是機(jī)械及行業(yè)設(shè)備，擁有一支專業(yè)技術(shù)團(tuán)隊和良好的市場口碑。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細(xì)節(jié)，公司旗下誠禹惠閥門，球閥批發(fā)，閥門批發(fā)，蝶閥批發(fā)深受客戶的喜愛。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造機(jī)械及行業(yè)設(shè)備良好品牌。甘肅誠禹惠物資秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實”的經(jīng)營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1818480.html</p></div></div></div></div></div><div id="s88hols" class="page-right twoColRt"><div 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