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clearfix"><div id="lp2qxzl" class="twoCol"><div id="4nv2cwi" 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-_huagong/">化工</a>?<a href="http://www.cdcfah.com/cp/second-huagong_famenmp/">閥門(mén)</a>?<a href="http://www.cdcfah.com/cp/third-famenmp_fatinw/">閥體</a>?廣東自動(dòng)再循環(huán)閥價(jià)錢(qián)多少歡迎來(lái)電上海大田閥門(mén)管道工程供應(yīng)</p><div id="scr4hz8" class="leftbox clearfix"><h1>廣東自動(dòng)再循環(huán)閥價(jià)錢(qián)多少歡迎來(lái)電上海大田閥門(mén)管道工程供應(yīng)</h1><div id="wf8liu7" class="proBig"><div id="luoxbip" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdatian/637343242342294921/2630359.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7tpofco" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdatian/637343242342294921/2630359.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="auryvc8" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>廣東自動(dòng)再循環(huán)閥價(jià)錢(qián)多少,自動(dòng)再循環(huán)閥</p><p><span>***更新：</span>2021-01-29 08:15:35</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="rl8qx82" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海大田閥門(mén)管道工程有限公司</a></p><p><span>聯(lián)系人：</span>余璐辰</p><p><span>郵箱: </span>business@dtjt.com</p><p><span>電話: </span>18621060309</p><p><span>傳真: </span>21_</p><p><span>網(wǎng)址: </span>https://www.dtjt.com</p><p><span>手機(jī): </span>21-68106370</p><p><span>地址: </span>祝橋鎮(zhèn)工業(yè)城</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="m2kcebo" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="x2hzwdk" class="box"><p><p style="text-indent:25px"> 自動(dòng)再循環(huán)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。自動(dòng)再循環(huán)閥主要可分為旋啟式自動(dòng)再循環(huán)閥（依重心旋轉(zhuǎn)）與升降式自動(dòng)再循環(huán)閥（沿軸線移動(dòng)）。自動(dòng)再循環(huán)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，廣東自動(dòng)再循環(huán)閥價(jià)錢(qián)多少，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，廣東自動(dòng)再循環(huán)閥價(jià)錢(qián)多少，廣東自動(dòng)再循環(huán)閥價(jià)錢(qián)多少，從而切斷流動(dòng)。其中自動(dòng)再循環(huán)閥就屬于這種類型的閥門(mén)。自動(dòng)再循環(huán)閥需要安排專業(yè)人員進(jìn)行定期維護(hù)工作.廣東自動(dòng)再循環(huán)閥價(jià)錢(qián)多少</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東自動(dòng)再循環(huán)閥價(jià)錢(qián)多少,自動(dòng)再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343242342294921/2630359.png"></div><p style="text-indent:25px"> 自動(dòng)再循環(huán)閥可將泵正常運(yùn)轉(zhuǎn)所需的小流量旁通到泵吸入設(shè)備，防止泵過(guò)熱，氣蝕。自控回流閥具有止回功能，阻止介質(zhì)回流到泵內(nèi)。自動(dòng)再循環(huán)閥根據(jù)感應(yīng)到的主路流量不同,的主閥瓣止回錐將自動(dòng)移動(dòng)到某一個(gè)位置上.同時(shí)主閥瓣帶動(dòng)旁路閥閥桿,將主閥瓣動(dòng)作傳遞至旁路,通過(guò)控制旁路閥閥瓣的位置,改變旁路的節(jié)流面積,從而控制旁路的流量.當(dāng)主閥瓣回至閥座關(guān)閉狀態(tài)時(shí),所有流量通過(guò)旁路回流.當(dāng)主閥瓣上升至頂端位置時(shí),旁路則完全關(guān)閉,所有泵的流量流向工節(jié)系統(tǒng)。甘肅自動(dòng)再循環(huán)閥哪個(gè)牌子好自動(dòng)再循環(huán)閥啟閉時(shí)閥桿只作旋轉(zhuǎn)運(yùn)動(dòng)而不作升降運(yùn)行.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東自動(dòng)再循環(huán)閥價(jià)錢(qián)多少,自動(dòng)再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343242258173828/6951216.png"></div><p style="text-indent:25px"> 自動(dòng)再循環(huán)閥的閥門(mén)出口直管道短距離的計(jì)算公式是10xd(d=閥門(mén)出口的內(nèi)徑).如果需要變徑則需保證在閥門(mén)進(jìn)出口管道4xd以外，對(duì)于焊接連接的閥門(mén)，在安裝前檢查所有接口的尺寸及材質(zhì)是非常重要的一個(gè)環(huán)節(jié)。檢查焊口是否損壞。在采購(gòu)焊接連接的閥門(mén)時(shí)需要下列閥門(mén)數(shù)據(jù)：連接管道的外徑尺寸，連接管道的內(nèi)徑尺寸，連接管道的材質(zhì)，焊口的形式及尺寸，根據(jù)上述信息，提供帶有合適焊口的閥門(mén)。所以用戶可以直接將閥門(mén)焊接在管道上。閥門(mén)的旁路接口一般為法蘭連接。焊接工作則有用戶自己完成。當(dāng)?shù)跗鸷附雍缚诘拈y門(mén)時(shí)必須特別小心，因?yàn)榈趵K沒(méi)法固定在法蘭上，必須找一個(gè)非常平衡的位置吊起閥門(mén)，從而進(jìn)行與管道的對(duì)焊。其他工序跟法蘭接口的閥門(mén)是一樣的。當(dāng)閥門(mén)安裝在系統(tǒng)上時(shí)，可以進(jìn)行加壓試驗(yàn)來(lái)檢測(cè)是否出現(xiàn)泄漏。</p><p style="text-indent:25px"> 自動(dòng)再循環(huán)閥閥瓣上部和閥蓋下部加工有導(dǎo)向套簡(jiǎn)，閥瓣導(dǎo)向簡(jiǎn)可在閥盞導(dǎo)向簡(jiǎn)內(nèi)自由升降，當(dāng)介質(zhì)順流時(shí)，閥瓣靠介質(zhì)推力開(kāi)啟，當(dāng)介質(zhì)停流時(shí)，閥瓣靠自垂降落在閥座上，起阻止介質(zhì)逆流作用。直通式升降自動(dòng)再循環(huán)閥介質(zhì)進(jìn)出口通道方向與閥座通道方向垂直;立式升降式自動(dòng)再循環(huán)閥，其介質(zhì)進(jìn)出口通道方向與閥座通道方向相同,其流動(dòng)阻力較直通式小。自動(dòng)再循環(huán)閥性能優(yōu)勢(shì)：自動(dòng)再循環(huán)閥包括回流的減壓設(shè)施，使高壓介質(zhì)經(jīng)多次小通徑繞流，消耗大量的能量，而降低壓力。自動(dòng)再循環(huán)閥開(kāi)啟在大約15°~70°之間時(shí)，又能進(jìn)行靈敏的流量控制。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東自動(dòng)再循環(huán)閥價(jià)錢(qián)多少,自動(dòng)再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343240684023437/3078406.png"></div><p style="text-indent:25px"> 給水泵出口至除氧器（或冷凝器）水箱之間安裝再循環(huán)系統(tǒng)，在自動(dòng)再循環(huán)閥剛啟動(dòng)或在給水量小到一定程度時(shí)，可打開(kāi)再循環(huán)系統(tǒng)。將一部分水返回除氧器水箱，以保證有一定的水量（一般約為額定流量的30%）通過(guò)水泵，而不致使泵內(nèi)水溫升高而汽化。而當(dāng)給水量處于正常條件下時(shí)，關(guān)閉再循環(huán)系統(tǒng)。以往的控制方式是由復(fù)雜的控制系統(tǒng)組成泵的保護(hù)及控制系統(tǒng)。再循環(huán)系統(tǒng)由小流量閥、止回閥、流量測(cè)量系統(tǒng)組成。系統(tǒng)中流量測(cè)量系統(tǒng)確定何時(shí)開(kāi)啟或關(guān)閉再循環(huán)系統(tǒng)；自動(dòng)再循環(huán)閥的選用歸于電動(dòng)閥門(mén)和電動(dòng)調(diào)節(jié)閥中的一個(gè)種類.甘肅自動(dòng)再循環(huán)閥哪個(gè)牌子好</p><p style="text-indent:25px">自動(dòng)再循環(huán)閥液壓驅(qū)動(dòng)設(shè)備呈現(xiàn)缺點(diǎn)時(shí)，應(yīng)找到修理人員及時(shí)找到缺點(diǎn)，停止修理.廣東自動(dòng)再循環(huán)閥價(jià)錢(qián)多少</p><p style="text-indent:25px"> 現(xiàn)代工業(yè)設(shè)備工藝過(guò)程中，要求自動(dòng)再循環(huán)閥基本上都是在變流量的狀態(tài)下工作，這就需要在工藝過(guò)程中有設(shè)置自動(dòng)控制設(shè)備(離心自動(dòng)再循環(huán)閥)。然而離心泵在低于負(fù)荷運(yùn)行時(shí)會(huì)出現(xiàn)過(guò)熱、嚴(yán)重噪聲、不穩(wěn)定和氣蝕而引起泵的損壞。這是需要一種自動(dòng)再循環(huán)設(shè)備，在泵低于負(fù)荷運(yùn)行時(shí)，通過(guò)旁路實(shí)現(xiàn)泵小流量回流循環(huán)。自動(dòng)再循環(huán)閥用于防止各種離心泵在低于負(fù)荷運(yùn)行時(shí)由于過(guò)熱、嚴(yán)重噪聲、不穩(wěn)定和氣蝕而引起的損壞。只要泵的流量低于一定數(shù)值，旁路回流閥的閥口就會(huì)自動(dòng)的打開(kāi)，以此來(lái)保證液泵所必須的小流量。廣東自動(dòng)再循環(huán)閥價(jià)錢(qián)多少</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3064345.html</p></div></div></div></div></div><div id="fzq3pmo" class="page-right twoColRt"><div id="qahzbn2" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="cqx8npm" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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