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id="q3eymy9" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024128642578/100910.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="mdrdcjd" 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>城東區(qū)止回閥廠家,止回閥</p><p><span>***更新：</span>2020-11-12 09:22:23</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="vhgdfmg" 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(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="2d2rtsr" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="byvczgn" class="box"><p><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(guān)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(dāng)出口壓力大于進(jìn)口壓力是，閥瓣就在液壓力和彈簧力的作用下關(guān)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(guān)閉快速，水錘壓力小4、水平或垂直管道均可使用，城東區(qū)止回閥廠家，安裝方便5、流道通暢、流體阻力小6，城東區(qū)止回閥廠家、動作靈敏、密封性能好7、閥瓣行程短、關(guān)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，城東區(qū)止回閥廠家、可靠性高。</span> 受工作原理的影響，只能安裝在水平管道上;城東區(qū)止回閥廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="城東區(qū)止回閥廠家,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024128642578/100910.png"></div><p> <span style="font-size:16px;">離心泵出口止回閥的作用與選型離心泵出口止回閥的作用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> 城東區(qū)止回閥廠家先裝閘閥或者蝶閥后裝止回閥優(yōu)點：可以保護(hù)蝶閥或者閘閥，沖擊力靠止回閥承擔(dān)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="城東區(qū)止回閥廠家,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024172031250/1230386.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;">止回閥，顧名思義，在系統(tǒng)中阻止流體反向流動，是壓縮機和泵系統(tǒng)常用的閥門。P&IDs顯示了工程師是如何連接設(shè)備和儀器的。不同的壓縮機和泵有不同的符號，這可以讓設(shè)計師決定選用什么元件。P&IDs不顯示管道的位置，為了適應(yīng)具體安裝，各種設(shè)備元件有多種考裝方式。根據(jù)止回閥類型，管道的運行位置、走向必須提前決定。渦輪機不總是與止回閥連接。當(dāng)渦輪機產(chǎn)生的全部壓力作為管道摩擦損失而消耗時，具有單個渦輪機的系統(tǒng)不要求使用止回閥，因為沒有介質(zhì)倒流的可能。這種情況在現(xiàn)實中很少發(fā)生，因為大部分的管道系統(tǒng)中都有一個高度差的變化，要求渦輪機將穩(wěn)定的水頭傳遞給帶系統(tǒng)壓力的流體。當(dāng)機器停止時，液體就會回流到系統(tǒng)的比較低點，靜水頭消失。止回閥可以阻止液體回流到抽水泵。</span> 旋啟式止回閥分為單瓣式、雙瓣式和多瓣式三種。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="城東區(qū)止回閥廠家,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024100673828/8890789.png"></div><p> <span style="font-size:16px;">煙道止回閥在日常生活中，又被稱為逆止閥、單向閥、逆流閥或背壓閥。止回閥屬于一種自動閥門，依靠介質(zhì)本身流動而自動開、閉閥瓣，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。在很多地方，是把這種煙道止回閥作為推廣的環(huán)保產(chǎn)品之一。如今在一棟樓里，廚房的煙道基本都是公用的。很多人在家的時候經(jīng)常會聞到樓上樓下做飯時，飄來的誘人飯菜香味，之所以產(chǎn)生這種情況的原因很多都是油煙機與煙道密封不好，而止回閥的作用就是防止廚房煙道里通過油煙機返位，阻止了油煙倒灌的作用。其實這種煙道止回閥不僅具有防止煙氣對生活產(chǎn)生的影響，還是您家庭中的寧靜衛(wèi)士，它可以有用地制止大眾煙道中他人家中排出的有毒廢氣和油煙倒灌進(jìn)入自己家里。值得強調(diào)的是，煙道止回閥還具有良好的防火性能，尤其是對于一些可以選擇金屬材質(zhì)的止回閥，這樣就可以更好的保證其安全性能，而且在很大程度上解決了蚊子、飛蛾、蒼蠅等蟲子的危害，可以給居家提供一個更安全、更衛(wèi)生的生活條件了。不僅如此，當(dāng)煙道內(nèi)的溫度達(dá)到150°時(煙道溫度達(dá)到150°默認(rèn)為煙道內(nèi)有明火），閥體背面的溫控元件動作，觸動關(guān)閉開關(guān)。</span><span style="font-size:16px;">閥片在彈簧回彈的作用下強制關(guān)閉閥門。</span> 泵前安裝與泵后安裝止回閥有何區(qū)別？涇川止回閥哪家好</p><p style="text-indent:25px">旋啟式止回閥。旋啟式止回閥對流體的阻力較小。城東區(qū)止回閥廠家</p><p> <span style="font-size:16px;">防止水力沖擊對止回閥密封面損壞的保護(hù)措施止回閥的設(shè)置，起到了防止物料倒流，避免泵葉輪遭受液擊的作用。但就止回閥本身而言，設(shè)置不當(dāng)，會造成水擊所產(chǎn)生的閥瓣對閥座的突然撞擊，損及止回閥密封面。因此，應(yīng)采取以幾點保護(hù)措施。1、對于泵出口設(shè)置>80mm的旋啟式止回閥，應(yīng)采用水平安裝方式，以減弱閥瓣回座及產(chǎn)生的撞擊。2、對于泵出口止回閥口徑大于等于150mm的管路，應(yīng)在止回閥前后設(shè)置旁路，防止閥前壓力上升過高，對止回閥密封面造成的損害。3、對泵排出管路起點和終點壓力較高管路，不允許設(shè)置旁路的，可采取以下措施：設(shè)置安全閥以代替旁路閥。其作用與旁路閥相似。它設(shè)置在止回閥出口附近，當(dāng)水擊使壓力升高時，可將一部分水放出以防止壓力繼續(xù)增高造成的損害。</span> 城東區(qū)止回閥廠家</p><p style="text-indent:25px">甘肅誠禹惠物資有限公司位于北濱河西路1226之27號(立達(dá)建材城A區(qū)11棟104室)。甘肅誠禹惠物資致力于為客戶提供良好的誠禹惠閥門，球閥批發(fā)，閥門批發(fā)，蝶閥批發(fā)，一切以用戶需求為中心，深受廣大客戶的歡迎。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，打造機械及行業(yè)設(shè)備良好品牌。甘肅誠禹惠物資立足于全國市場，依托強大的研發(fā)實力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1959517.html</p></div></div></div></div></div><div id="cfme2qi" class="page-right twoColRt"><div id="xhebt2c" class="box01 margin10 clearfix"><h3><a 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