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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>?黑龍江止回閥制造商客戶(hù)至上藍(lán)帕控制閥門(mén)供應(yīng)</p><div id="3xk3n8c" class="leftbox clearfix"><h1>黑龍江止回閥制造商客戶(hù)至上藍(lán)帕控制閥門(mén)供應(yīng)</h1><div id="r779aok" class="proBig"><div id="wqrtaof" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227301052324/8942429.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="lpc2rjg" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227301052324/8942429.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="puryfro" 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>黑龍江止回閥制造商,止回閥</p><p><span>***更新：</span>2021-02-03 07:19:51</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="j3lqs7y" 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="vproaxo" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="iczw3ni" class="box"><p><p style="text-indent:25px">主體毛坯的質(zhì)量控制本閥門(mén)的所有零件均為鍛件，鍛造時(shí)嚴(yán)格按照鍛造工藝規(guī)程和工序卡進(jìn)行，嚴(yán)格控制始鍛溫度、終鍛溫度、變形程度和變形速度，按工藝規(guī)程規(guī)定的冷卻方法進(jìn)行冷卻。對(duì)鍛成品進(jìn)行化學(xué)成分分析、力學(xué)性能試驗(yàn)、晶間腐蝕試驗(yàn)、金相組織分析，經(jīng)分析、試驗(yàn)和測(cè)定，均符合相應(yīng)標(biāo)準(zhǔn)。鍛件的質(zhì)量通過(guò)超聲波檢驗(yàn)和液體滲透檢驗(yàn)來(lái)保證，按照RCC－M要求對(duì)鍛件進(jìn)行100%的超聲波探傷并評(píng)定，并對(duì)鍛件的全部表面進(jìn)行液體滲透檢驗(yàn)和評(píng)定。焊接為了提高堆焊質(zhì)量，對(duì)閥瓣和閥座的密封面堆焊采用了等離子氬弧焊工藝。同時(shí)，為確保焊接質(zhì)量，黑龍江止回閥制造商，黑龍江止回閥制造商，黑龍江止回閥制造商，對(duì)生產(chǎn)中所用焊接工藝重新進(jìn)行了工藝評(píng)定。止回閥的閥瓣或閥芯，在水流停止流動(dòng)時(shí)，應(yīng)能在重力或彈簧力作用下自行關(guān)閉。黑龍江止回閥制造商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江止回閥制造商,止回閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227301052324/8942429.png"></div><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(huì)開(kāi)啟，開(kāi)始產(chǎn)生流量的壓力點(diǎn)被稱(chēng)為閥門(mén)的開(kāi)啟壓力。隨著壓力的增加，閥瓣會(huì)逐漸到達(dá)完全開(kāi)啟的位置。如果流量來(lái)自閥門(mén)的出口側(cè)，此時(shí)出口壓力大于入口壓力，閥門(mén)關(guān)閉，流體無(wú)法通過(guò)閥門(mén)。旋啟式止回閥較明顯的優(yōu)點(diǎn)是閥門(mén)從入口到出口之間的壓降很低，這種閥門(mén)非常適用于高流量、低流速的應(yīng)用場(chǎng)景。不僅如此，流體通過(guò)閥門(mén)產(chǎn)生的湍流也非常少。此外，這種閥門(mén)易于維修。若閥門(mén)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(gè)閥門(mén)進(jìn)行維修。不過(guò)，旋啟式止回閥不適用于壓力波動(dòng)較大的系統(tǒng)，壓力波動(dòng)會(huì)使閥門(mén)反復(fù)開(kāi)閉，造成閥瓣或閥座損傷，導(dǎo)致閥門(mén)內(nèi)漏。河南止回閥都有哪些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="黑龍江止回閥制造商,止回閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227241491944/2467116.png"></div><p style="text-indent:25px">先裝閘閥或者蝶閥后裝止回閥：優(yōu)點(diǎn)：可以保護(hù)蝶閥或者閘閥，沖擊力靠止回閥承擔(dān)。缺點(diǎn)：止回閥誰(shuí)來(lái)保護(hù)，止回閥是靠壓力差來(lái)開(kāi)關(guān)，如果總管壓力高就關(guān)，泵的壓力高就開(kāi)，如果使用的流量不穩(wěn)定，那么止回閥就會(huì)反復(fù)開(kāi)關(guān)，會(huì)影響止回閥壽命。而且止回閥壞了，特別是母管制系統(tǒng)，需要停運(yùn)系統(tǒng)后才能進(jìn)行修理。一般來(lái)說(shuō)，由于止回閥啟閉動(dòng)作較為頻繁，內(nèi)部連接部分及密封部件容易發(fā)生損壞，為便于修理，防止發(fā)生由于止回閥故障而停運(yùn)整個(gè)系統(tǒng)的情況，從這個(gè)角度考慮，止回閥會(huì)裝在出口閘閥或蝶閥之前，你見(jiàn)到的是不是基本上都是這樣呢？ </p><p style="text-indent:25px"> 升降式止回閥需要介質(zhì)旋轉(zhuǎn)90度。隨著入口壓力增加，它向上推動(dòng)盤(pán)（克服重力和/或彈簧）以允許介質(zhì)流過(guò)。將光盤(pán)保持在垂直線上以確保當(dāng)入口壓力降低時(shí)，光盤(pán)將正確地重新就位并密封開(kāi)口。它們使用擱置在密封座上的球來(lái)封閉開(kāi)口。密封座通常是錐形的，以確保球被引導(dǎo)到座位并產(chǎn)生適當(dāng)?shù)拿芊?。它可以是自由浮?dòng)的或彈簧式的。當(dāng)入口壓力高于開(kāi)啟壓力時(shí)，球?qū)拿芊饧幸瞥霾⒃试S介質(zhì)流動(dòng)。要關(guān)閉，沒(méi)有彈簧的球形止回閥需要背壓（反向流動(dòng)），否則，背壓迫使球進(jìn)入密封。鴨嘴閥類(lèi)似于軟管而不是金屬外殼。閥門(mén)的出口被擠壓/壓平在一起，這就是閥門(mén)類(lèi)型的名稱(chēng)。來(lái)自入口的介質(zhì)流打開(kāi)扁平端，允許介質(zhì)流過(guò)。當(dāng)移除入口壓力時(shí)，鴨嘴形末端會(huì)向后平展以防止回流。止回閥一般安裝在泵送體系的排放管道中，以確保被泵輸送的介質(zhì)不會(huì)回流。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江止回閥制造商,止回閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445227345954701/4336260.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。對(duì)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。河南止回閥都有哪些</p><p style="text-indent:25px">止回閥的作用是只允許介質(zhì)向一個(gè)方向流動(dòng)，而且阻止方向流動(dòng)。黑龍江止回閥制造商</p><p style="text-indent:25px">對(duì)于要求關(guān)閉時(shí)水擊沖擊比較小或無(wú)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。了解進(jìn)口壓力將有助于確定您需要哪種類(lèi)型的止回閥。您需要一個(gè)“球形”式止回閥嗎？您需要求一個(gè)“旋啟式”止回閥嗎？或者您需要一個(gè)消聲式止回閥？還是法蘭止回閥或?qū)A接止回閥？確定您需要哪種止回閥取決于止回閥在泵體系中的方位。背壓是進(jìn)口和出口壓力之間的壓差。例如，一個(gè)閥安裝在將流體排入小口徑的管道的結(jié)尾。當(dāng)流量上升時(shí)，水面上方的水會(huì)有多高？當(dāng)水上升到該閥上方時(shí)，發(fā)生背壓。因此，根據(jù)您的詳細(xì)使用，您應(yīng)該知道止回閥需要接受多大的背壓。如果閥門(mén)安裝后處于浸沒(méi)在介質(zhì)中的狀態(tài)，這意味著閥門(mén)上總是有背壓。在這種情況下，您需要挑選一個(gè)用于浸沒(méi)條件并由正確材料制造的止回閥，以適將錯(cuò)的止回閥放入管道體系中的錯(cuò)誤是比較常見(jiàn)的。如果您的止回閥頻頻出現(xiàn)問(wèn)題，可能是挑選不妥造成的。黑龍江止回閥制造商</p><p style="text-indent:25px">藍(lán)帕控制閥門(mén)（江蘇）有限公司是一家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(gè)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(xiāo)售網(wǎng)絡(luò)覆蓋了中國(guó)及亞太各國(guó)。的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠(chéng)實(shí)可信的企業(yè)。藍(lán)帕閥門(mén)擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專(zhuān)業(yè)研發(fā)團(tuán)隊(duì)，以高度的專(zhuān)注和執(zhí)著為客戶(hù)提供閥門(mén)，管道及配件，氣動(dòng)元件，工業(yè)自動(dòng)化設(shè)備。藍(lán)帕閥門(mén)致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶(hù)產(chǎn)品上的貼心，為用戶(hù)帶來(lái)良好體驗(yàn)。藍(lán)帕閥門(mén)始終關(guān)注機(jī)械及行業(yè)設(shè)備行業(yè)。滿(mǎn)足市場(chǎng)需求，提高產(chǎn)品價(jià)值，是我們前行的力量。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3139043.html</p></div></div></div></div></div><div id="7tvxwh7" class="page-right twoColRt"><div id="gpbtq3w" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="aphebnx" class="recomPic likePro"><a 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