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"index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a 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="8fujlxa" class="twoCol"><div id="w77sumo" 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_qitafamenbd/">其他閥門(mén)</a>?遼寧止回閥怎么樣歡迎咨詢藍(lán)帕控制閥門(mén)供應(yīng)</p><div id="sh2ryac" class="leftbox clearfix"><h1>遼寧止回閥怎么樣歡迎咨詢藍(lán)帕控制閥門(mén)供應(yīng)</h1><div id="8oq7d3d" class="proBig"><div id="t2yfcuw" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227316491845/740187.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3heo77r" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227316491845/740187.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="tikhoax" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>遼寧止回閥怎么樣,止回閥</p><p><span>***更新：</span>2021-02-02 01:18:26</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="rqnfcta" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">藍(lán)帕控制閥門(mén)（江蘇）有限公司</a></p><p><span>聯(lián)系人：</span>彭俊蘭</p><p><span>郵箱: </span>shlapar@163.com</p><p><span>電話: </span>13918404049</p><p><span>傳真: </span>0523_87889288</p><p><span>網(wǎng)址: </span>http://laparvalve.com</p><p><span>手機(jī): </span>0523-87885388</p><p><span>地址: </span>泰興市黃橋工業(yè)園區(qū)軍民路北側(cè)</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="8pwtqsz" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="poakqn8" class="box"><p><p style="text-indent:25px">消聲止回閥的維護(hù)與保養(yǎng)如下： 1）存放運(yùn)輸時(shí)啟閉件應(yīng)處于關(guān)閉裝置，同時(shí)應(yīng)做好以下工作： ①消聲止回閥的瓣應(yīng)固定于開(kāi)啟位置。 ②通徑兩端內(nèi)口用泡沫板堵塞，端口須用悶蓋塞緊，予以防塵、防銹，保持通道清潔和端面的平整； ③汽缸部位進(jìn)行適當(dāng)?shù)陌b防護(hù)，遼寧止回閥怎么樣、防震和防碰； 2）消聲止回閥放置時(shí)應(yīng)平穩(wěn)，氣動(dòng)驅(qū)動(dòng)裝置朝上，遼寧止回閥怎么樣，不得相互受擠。 3）長(zhǎng)久放置時(shí)應(yīng)定期檢查。每三個(gè)月對(duì)兩通道、密封面上的污垢和銹跡，遼寧止回閥怎么樣，焊接口的防護(hù)狀況進(jìn)行檢查，擦拭污垢和銹跡后，重新涂刷防銹油予以防護(hù)。 4）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； 5）消聲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)； 6）一般在公稱通經(jīng)50mm的水平管道上都應(yīng)選用立式消聲止回閥； 7）消聲止回閥應(yīng)存放在干燥通風(fēng)的室內(nèi)，做到防潮、防雨、防銹。直通式升降止回閥只能在水平管道安裝。遼寧止回閥怎么樣</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遼寧止回閥怎么樣,止回閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227316491845/740187.png"></div><p style="text-indent:25px">為了確保閥瓣每次都能到達(dá)閥座面的合適位置，閥瓣設(shè)計(jì)在鉸鏈機(jī)構(gòu)，以便閥瓣具有足夠有旋啟空間，并使閥瓣真正的、多方面的與閥座接觸。閥瓣可以全部用金屬制成，也可以在金屬上鑲嵌皮革、橡膠、或者采用合成覆蓋面，這取決于使用性能的要求。旋啟式止回閥在完全打開(kāi)的狀況，流體壓力幾乎不受阻礙，因此通過(guò)閥門(mén)的壓力降相對(duì)較小。升降式止回閥的閥瓣坐落位于閥體上閥座密封面上。此閥門(mén)除了閥瓣可以自由地升降之外，其余部分如同截止閥一樣，流體壓力使閥瓣從閥座密封面上抬起，介質(zhì)回流導(dǎo)致閥瓣回落到閥座上，并切斷流動(dòng)。根據(jù)使用條件，閥瓣可以是全金屬結(jié)構(gòu)，也可以是在閥瓣架上鑲嵌橡膠墊或橡膠環(huán)的形式。像截止閥一樣，流體通過(guò)升降式止回閥的通道也是狹窄的，因此通過(guò)升降式止回閥的壓力降比旋啟式止回閥大些，而且旋啟式止回閥的流量受到的限制很少。重慶止回閥哪家專業(yè)對(duì)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(dòng)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遼寧止回閥怎么樣,止回閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227241491944/2467116.png"></div><p style="text-indent:25px">目前市場(chǎng)上止回閥品種和型號(hào)很多，質(zhì)量差異很大，由于對(duì)止回閥失效的風(fēng)險(xiǎn)認(rèn)識(shí)不到位，企業(yè)在采購(gòu)過(guò)程中缺少科學(xué)指導(dǎo)，導(dǎo)致一些質(zhì)量不符合要求的止回閥安裝到關(guān)鍵裝置的關(guān)鍵部位。建議依據(jù)較新的國(guó)家和行業(yè)標(biāo)準(zhǔn)，按照“就高不就低”的原則，確定止回閥檢驗(yàn)、試驗(yàn)項(xiàng)目和指標(biāo)，根據(jù)止回閥風(fēng)險(xiǎn)等級(jí)確定止回閥的泄漏等級(jí)，進(jìn)行設(shè)備選型，制定《止回閥選購(gòu)指導(dǎo)意見(jiàn)》，指導(dǎo)企業(yè)止回閥的選購(gòu)、選型、檢驗(yàn)、監(jiān)造，通過(guò)加強(qiáng)設(shè)備選型，強(qiáng)化入廠檢驗(yàn)、入廠監(jiān)造、到貨抽檢環(huán)節(jié)的管理，確保采購(gòu)質(zhì)量。建議制定有關(guān)止回閥定期檢驗(yàn)和維修的制度、標(biāo)準(zhǔn)，將風(fēng)險(xiǎn)等級(jí)高的止回閥列入企業(yè)強(qiáng)制檢驗(yàn)范圍之內(nèi)，納入特種設(shè)備管理，規(guī)定原則上每年至少校驗(yàn)一次，并參照有關(guān)國(guó)家標(biāo)準(zhǔn)，制定檢驗(yàn)、維護(hù)的具體要求。在工藝條件允許的情況下，增設(shè)副線，便于止回閥切出檢驗(yàn)、檢修。對(duì)無(wú)法切出的風(fēng)險(xiǎn)等級(jí)高的止回閥，并制定妥善的工藝和安全措施，加強(qiáng)監(jiān)控，在各類檢修時(shí)安排校驗(yàn)。</p><p style="text-indent:25px">止回閥是指依靠介質(zhì)本身流動(dòng)而自動(dòng)開(kāi)、閉閥瓣，用來(lái)防止介質(zhì)倒流的閥門(mén)，又稱逆止閥、單向閥、逆流閥和背壓閥。止回閥屬于一種自動(dòng)閥門(mén)，其主要作用是防止介質(zhì)倒流、防止泵及驅(qū)動(dòng)電動(dòng)機(jī)反轉(zhuǎn)，以及容器介質(zhì)的泄放。止回閥還可用于給其中的壓力可能升至超過(guò)系統(tǒng)壓的輔助系統(tǒng)提供補(bǔ)給的管路上。止回閥主要可分為旋啟式止回閥（依重心旋轉(zhuǎn)）與升降式止回閥（沿軸線移動(dòng)）。止回閥這種類型的閥門(mén)的作用是只允許介質(zhì)向一個(gè)方向流動(dòng)，而且阻止反方向流動(dòng)。通常這種閥門(mén)是自動(dòng)工作的，在一個(gè)方向流動(dòng)的流體壓力作用下，閥瓣打開(kāi)；流體反方向流動(dòng)時(shí)，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(dòng)。止回閥與截止閥組合使用，可起到安全隔離的作用。缺點(diǎn)是阻力大，關(guān)閉時(shí)密封性差。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遼寧止回閥怎么樣,止回閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227457898088/168651.png"></div><p style="text-indent:25px"> 那么止回閥的安裝位置如何確定呢？泵前安裝與泵后安裝止回閥有何區(qū)別，泵前安裝適用于哪些地方？止回閥通常要配合其他閥門(mén)一起使用，那么跟其他閥門(mén)配合使用時(shí)，止回閥要安裝在哪里呢？下面我們來(lái)一起探討一下。止回閥又叫逆止閥，是一種自動(dòng)閥門(mén)，它依靠管道內(nèi)流動(dòng)介質(zhì)的壓力推動(dòng)閥瓣，來(lái)實(shí)現(xiàn)閥門(mén)的關(guān)閉和開(kāi)啟，當(dāng)介質(zhì)停止流動(dòng)，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(duì)于保障管道的安全起到了很大的作用。止回閥按結(jié)構(gòu)劃分，可分為升降式止回閥、旋啟式止回閥和蝶式止回閥三種。升降式止回閥可分為立式和直通式兩種。旋啟式止回閥分為單瓣式、雙瓣式和多瓣式三種。蝶式止回閥分為蝶式雙瓣、蝶式單瓣，以上幾種止回閥在連接形式上可分為螺紋連接、法蘭連接、焊接和對(duì)夾式連接四種。直通式升降止回閥介質(zhì)進(jìn)出口通道方向與閥座通道方向垂直。遼寧止回閥怎么樣</p><p style="text-indent:25px">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。遼寧止回閥怎么樣</p><p style="text-indent:25px">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(dòng)作來(lái)阻斷介質(zhì)倒流的一種閥門(mén)。屬自動(dòng)閥類，又稱逆止閥、單向閥、回流閥或隔離閥。閥瓣運(yùn)動(dòng)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(dòng)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(dòng)阻力之和時(shí)，閥門(mén)被開(kāi)啟。反之，介質(zhì)倒流時(shí)閥門(mén)則關(guān)閉。旋啟式止回閥有一個(gè)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(diǎn)是阻力大，關(guān)閉時(shí)密封性差。遼寧止回閥怎么樣</p><p style="text-indent:25px">藍(lán)帕控制閥門(mén)（江蘇）有限公司主要經(jīng)營(yíng)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(duì)和良好的市場(chǎng)口碑。公司業(yè)務(wù)涵蓋閥門(mén)，管道及配件，氣動(dòng)元件，工業(yè)自動(dòng)化設(shè)備等，價(jià)格合理，品質(zhì)有保證。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠(chéng)信為本的理念，打造機(jī)械及行業(yè)設(shè)備良好品牌。藍(lán)帕閥門(mén)秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實(shí)”的經(jīng)營(yíng)理念，全力打造公司的重點(diǎn)競(jìng)爭(zhēng)力。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3115789.html</p></div></div></div></div></div><div id="xwdvsew" 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