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clearfix tcPro"><section class="home-main container clearfix"><div id="ktfht4k" class="twoCol"><div id="72a7fmb" 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>?靖遠止回閥多少錢甘肅誠禹惠物資供應</p><div id="oda8w7p" class="leftbox clearfix"><h1>靖遠止回閥多少錢甘肅誠禹惠物資供應</h1><div id="8ih7sxw" class="proBig"><div id="imo2fc9" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024375351562/9522742.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="mli97wl" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024375351562/9522742.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="q7skhbf" 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>靖遠止回閥多少錢,止回閥</p><p><span>***更新：</span>2021-01-21 10:13:01</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="lacqn4r" 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="8dvpg4w" class="page-proshow02"><p class="title">詳細說明</p><div id="7ahbnhl" class="box"><p><p> <span style="font-size:16px;">旋啟式止回閥又稱單向閥或逆止閥，其作用是防止管路中的介質(zhì)倒流。啟閉件靠介質(zhì)流動和力量自行開啟或關閉，以防止介質(zhì)倒流的閥門叫止回閥。止回閥屬于自動閥類，主要用于介質(zhì)單向流動的管道上，只允許介質(zhì)向一個方向流動，以防止發(fā)生事故。本類閥門在管道中一般應當水平安裝。旋啟式止回閥適用于公稱壓力、Class150-2500；公稱通徑DN15~1200mm、NPS1/2~48；工作溫度－196~540℃的各種管路上，用于防止介質(zhì)倒流。通過選用不同的材質(zhì)(WCB,CF8(M),CF3(M),1Gr5Mo,15CrMo1V，可適用于水，靖遠止回閥多少錢、蒸汽、油品、硝酸、醋酸，靖遠止回閥多少錢、強氧化性介質(zhì)及尿素等多種介質(zhì)。主要用于石油、化工、制藥、化肥、電力等管路上。旋啟式止回閥的采用內(nèi)裝搖臂旋啟式結(jié)構，閥門的所有啟閉件都裝于閥體內(nèi)部，不穿透閥體，除了中法蘭部位用密封墊片和密封環(huán)外，整體沒有外漏點，杜絕閥門外泄的可能。旋啟式止回閥搖臂和閥瓣連接處采用球面連接的結(jié)構，使得閥瓣在360度范圍內(nèi)有一定</span><span style="font-size:16px;">的自由度，有適當?shù)奈⒘课恢醚a償。適用于清凈介質(zhì)，靖遠止回閥多少錢。</span> 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。靖遠止回閥多少錢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="靖遠止回閥多少錢,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024375351562/9522742.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,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，應靠近泵出口安裝止回閥，在止回閥上部設有切斷閥(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，應在止回閥與切斷閥之間加裝泄壓用放凈閥。</span> 靖遠止回閥多少錢只允許介質(zhì)向一個方向流動、流體在壓力作用下使閥門的閥瓣開啟。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="靖遠止回閥多少錢,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024327724609/9438807.png"></div><p> <span style="font-size:16px;">防止水力沖擊對止回閥密封面損壞的保護措施止回閥的設置，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，設置不當，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，應采取以幾點保護措施。1、對于泵出口設置>80mm的旋啟式止回閥，應采用水平安裝方式，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，應在止回閥前后設置旁路，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，不允許設置旁路的，可采取以下措施：設置安全閥以代替旁路閥。其作用與旁路閥相似。它設置在止回閥出口附近，當水擊使壓力升高時，可將一部分水放出以防止壓力繼續(xù)增高造成的損害。</span> </p><p> <span style="font-size:16px;">止回閥的啟閉是依靠介質(zhì)流動力量自行開啟和關閉。止回閥屬于自動閥產(chǎn)品，止回閥只允許介質(zhì)向一個方向流動的管路中使用，防止介質(zhì)回流的現(xiàn)象發(fā)生。其使用范圍***，可適用大小口徑、各種介質(zhì)、電站高壓系統(tǒng)中使用。止回閥開啟是指依靠介質(zhì)正向流動打開閥瓣，同樣的道理介質(zhì)倒流推動閥瓣而關閉，止回閥還稱之為逆止閥、單向閥、逆流閥和背壓閥。多屬于自動閥門，主要功能是用來防止介質(zhì)倒流，防止泵及驅(qū)動電機反轉(zhuǎn)和容器介質(zhì)的泄放使用。同時還用于壓力可能升至超過系統(tǒng)壓的輔助系統(tǒng)中作安全保護。止回閥主要是用來防止管道中的介質(zhì)倒流使用。底閥及鴨嘴閥也是屬于止回閥系類。止回閥可分為升降式、旋啟式、碟型三種：⑴升降式又分為立式和臥式2種，升降式結(jié)構是沿軸線移動。實例：①升降式靜音止回閥是用在給排水工程質(zhì)量要求高的管線上；同時可安裝在泵的出口處，要求壓力（）相對高的管網(wǎng)，是防水沖擊止回閥的重要產(chǎn)品。②升降式消聲止回閥適用于高層</span><span style="font-size:16px;">建筑給排水系統(tǒng)中及泵的出口處，不適合污水管路場合。</span> 止回閥的安裝位置如何確定？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="靖遠止回閥多少錢,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024271513671/7973206.png"></div><p> <span style="font-size:16px;">止回閥有多種樣式，它們使用不同的機制來阻止倒流，包括盤，球，活塞和其他形式。流量可以是直通，成角度或舉升形式。每種類型的止回閥都有其優(yōu)勢。旋啟式止回閥可允許使用通過管道的清管器清潔或檢查管道。其他人在垂直流方面表現(xiàn)比較好。有些可以在線維修。某些含有固體或纖維材料的可耐受流動。配件可以微調(diào)閥門的性能。杠桿和配重，彈簧，氣墊或減震器的各種組合可幫助控制閥門的關閉速度以匹配應用，并防止閥門猛擊和水錘問題。其他附件，例如位置指示器，提供操作信息。Bregman說，在許多應用中，比較好包括一個反沖洗裝置，以積聚在閥門底部的任何碎屑。由于流體的流動打開了止回閥，因此了解流體及其特性至關重要。流體是液體，氣體還是多相-液體流中的固體或氣體流中的液體？正</span><span style="font-size:16px;">常的體積流量是多少？流量是水平的還是垂直的？上或***動的溫度和壓力將是多少？流體的物理特性是什么，例如密度和粘度？流體的化學性質(zhì)是什么，例如其pH值和蒸氣壓？有腐蝕性嗎？有磨蝕性嗎？這些流動特性決定了哪種樣式的止回閥可以完成工作，以及對止回閥和閥內(nèi)件的任何特殊材料要求。</span> 止回閥的特點是啟閉件靠介質(zhì)流動的力量自行開啟或關閉。靖遠止回閥多少錢</p><p style="text-indent:25px">一種是安裝在水泵前豎吸管端頭，也叫底閥。靖遠止回閥多少錢</p><p> <span style="font-size:16px;">閉止回閥緩閉止回閥是一種通過增加執(zhí)行機構、阻尼器而實現(xiàn)緩慢關閉的止回閥。緩閉止回閥需要配合開關閥使用。當介質(zhì)在重力作用下倒流時，止回閥緩慢關閉，有效地避免了因普通止回閥突然關閉產(chǎn)生的水錘。其缺點為因為關閉速度較慢，一部分介質(zhì)不可避免地倒流進入離心泵，泵因此可能會產(chǎn)生機械故障。2、設置緩閉止回蝶閥這是一種在大型水利系統(tǒng)中應用比較普遍、效果比較好的方法。緩閉止回蝶閥由蝶閥、執(zhí)行結(jié)構及液壓控制系統(tǒng)構成。該系統(tǒng)只需安裝緩閉止回蝶閥即可，即能起到止回閥的作用又能起到開關閥的作用。當離心泵開啟的時候，其按先慢后快的步驟開啟，保證泵低載開啟;當泵突然停止工作時，其按先快后慢的步驟關閉，即可以避免水錘的產(chǎn)生，又可以避免過多的介質(zhì)倒流通過泵，引起泵的機械故障。</span> 靖遠止回閥多少錢</p><p style="text-indent:25px">甘肅誠禹惠物資有限公司主要經(jīng)營范圍是機械及行業(yè)設備，擁有一支專業(yè)技術團隊和良好的市場口碑。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。甘肅誠禹惠物資秉承“客戶為尊、服務為榮、創(chuàng)意為先、技術為實”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/2946124.html</p></div></div></div></div></div><div id="lvce8ah" class="page-right twoColRt"><div id="7p7mdc2" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3tvct52" class="recomPic likePro"><a 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