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class="leftbox clearfix"><h1>重慶止回閥廠商客戶至上藍(lán)帕控制閥門供應(yīng)</h1><div id="tspmykr" class="proBig"><div id="rg3lg22" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227408435167/8381061.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="bkevx8g" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227408435167/8381061.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qe32zbt" 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>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>重慶止回閥廠商,止回閥</p><p><span>***更新：</span>2021-01-06 05:19:36</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="cwqhjls" 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（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="la3xolx" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="f2o3a2b" class="box"><p><p style="text-indent:25px">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(guān)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(jī)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(hù)。止回閥的啟閉是依靠介質(zhì)流動力量自行開啟和關(guān)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，重慶止回閥廠商。其使用范圍普遍，可適用大小口徑、各種介質(zhì)，重慶止回閥廠商，重慶止回閥廠商、電站高壓系統(tǒng)中使用。其結(jié)構(gòu)與截止閥相似，閥體和閥瓣與截止閥相同。重慶止回閥廠商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶止回閥廠商,止回閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227408435167/8381061.png"></div><p style="text-indent:25px">止回閥的選型標(biāo)準(zhǔn)內(nèi)容如下： 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、一般在公稱通徑50mm的水平管道上都應(yīng)選用臥式升降止回閥； 4、直通式升降止回閥只能在水平管道安裝； 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、升降式較旋啟式密封性好，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，它可裝在水平、垂直或傾斜的管線上，如裝在垂直管道上，介質(zhì)流向要由下而上； 8、旋啟式止回閥不宜制成小口徑閥門、可以做成很高的工作壓力，公稱壓力可達(dá)到42MPa，而且公稱通徑也可以做到很大，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。重慶止回閥廠商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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶止回閥廠商,止回閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227457898088/168651.png"></div><p style="text-indent:25px"> 對夾蝶式止回閥是指依靠介質(zhì)本身流動而自動開、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(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）。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。</p><p style="text-indent:25px">閥瓣通常情況下被壓在閥座上。當(dāng)入口處的流體壓力增加，克服了閥瓣的重量和出口處的流體壓力后，閥瓣將會開啟，開始產(chǎn)生流量的壓力點(diǎn)被稱為閥門的開啟壓力。隨著壓力的增加，閥瓣會逐漸到達(dá)完全開啟的位置。如果流量來自閥門的出口側(cè)，此時出口壓力大于入口壓力，閥門關(guān)閉，流體無法通過閥門。旋啟式止回閥較明顯的優(yōu)點(diǎn)是閥門從入口到出口之間的壓降很低，這種閥門非常適用于高流量、低流速的應(yīng)用場景。不僅如此，流體通過閥門產(chǎn)生的湍流也非常少。此外，這種閥門易于維修。若閥門發(fā)生泄漏，可以直接更換閥座環(huán)和閥瓣等部件，而不需要拆卸整個閥門進(jìn)行維修。不過，旋啟式止回閥不適用于壓力波動較大的系統(tǒng)，壓力波動會使閥門反復(fù)開閉，造成閥瓣或閥座損傷，導(dǎo)致閥門內(nèi)漏。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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶止回閥廠商,止回閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227241491944/2467116.png"></div><p style="text-indent:25px">要保持止回閥完全打開，通常需要每秒10到12英尺的流體速度，例如水。要開始打開止回閥，“破裂壓力”大約需要4到8英尺/秒。保持止回閥打開的壓降通常是開啟壓力的二到五倍。止回閥過大會導(dǎo)致流速低，從而無法保持閥門始終打開。這會導(dǎo)致不穩(wěn)定，閥可能會顫動或顫動。反過來，由于頻繁地更換閥門/閥芯，以及由于修理或更換止回閥而導(dǎo)致的其他系統(tǒng)停機(jī)，這會導(dǎo)致閥門過早的機(jī)械磨損以及可能帶來的額外維護(hù)成本。止回閥尺寸過小會導(dǎo)致通過該閥的流量過高，從而導(dǎo)致系統(tǒng)中不必要的高壓力損失。它還可能在流中產(chǎn)生過度的湍流，這可能導(dǎo)致閥不穩(wěn)定并增加機(jī)械磨損，從而導(dǎo)致更高的維護(hù)成本。同樣，通過尺寸過小的閥門的較高流速可能會增加閥門內(nèi)部的腐蝕磨損。對于要求關(guān)閉時水擊沖擊比較小或無水擊的管路，宜選用緩閉式旋啟止回閥和緩閉式蝶形止回閥。河南止回閥生產(chǎn)商</p><p style="text-indent:25px">止回閥閥瓣運(yùn)動方式分為升降式和旋啟式。重慶止回閥廠商</p><p style="text-indent:25px">止回閥是引導(dǎo)水流單向流動、防止水倒流的閥門，止回閥的啟閉件靠水流流動和力量自行開啟或關(guān)閉，屬于自動閥類。在管網(wǎng)較小壓力或水箱較低有效水位時，應(yīng)仍能保證止回閥的開啟。止回閥的開啟壓力一般大于開啟后水流正常流動時的局部水頭損失。根據(jù)國標(biāo)圖集01SS105，止回閥的較小開啟壓力有0.003Mpa、0.01Mpa等；根據(jù)建水標(biāo)第3.5.7條的條文解釋，旋啟式止回閥在靜水壓大于或等于0.5m時可開啟。故在設(shè)計制圖時，應(yīng)保證管網(wǎng)較小壓力及水箱較低有效水位必須大于所選止回閥的較小開啟壓力；尤其是高位消防水箱，若高位消防水箱的較低有效水位低于所選止回閥的較小開啟壓力，則有可能導(dǎo)致初期火災(zāi)滅火時止回閥無法打開，消火栓或噴頭無水可出，影響初期滅火。重慶止回閥廠商</p><p style="text-indent:25px">藍(lán)帕控制閥門（江蘇）有限公司發(fā)展規(guī)模團(tuán)隊(duì)不斷壯大，現(xiàn)有一支專業(yè)技術(shù)團(tuán)隊(duì)，各種專業(yè)設(shè)備齊全。致力于創(chuàng)造***的產(chǎn)品與服務(wù)，以誠信、敬業(yè)、進(jìn)取為宗旨，以建LAPAR產(chǎn)品為目標(biāo)，努力打造成為同行業(yè)中具有影響力的企業(yè)。公司堅持以客戶為中心、LAPAR在亞太已經(jīng)形成了包含蝶閥、球閥、調(diào)節(jié)閥、截止閥、閘閥、止回閥等二十多個系列的產(chǎn)品格局，嚴(yán)格執(zhí)行ISO、API、ANSI、DIN、GB等標(biāo)準(zhǔn)體系，產(chǎn)品運(yùn)用在環(huán)保、機(jī)械、電力、石油、空分、化工、食品、醫(yī)藥等行業(yè)，銷售網(wǎng)絡(luò)覆蓋了中國及亞太各國。市場為導(dǎo)向，重信譽(yù)，保質(zhì)量，想客戶之所想，急用戶之所急，全力以赴滿足客戶的一切需要。藍(lán)帕控制閥門（江蘇）有限公司主營業(yè)務(wù)涵蓋閥門，管道及配件，氣動元件，工業(yè)自動化設(shè)備，堅持“質(zhì)量保證、良好服務(wù)、顧客滿意”的質(zhì)量方針，贏得廣大客戶的支持和信賴。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2724664.html</p></div></div></div></div></div><div id="x33yvxo" class="page-right twoColRt"><div id="84fzwdk" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ync3pja" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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