江蘇流量控制閥生產(chǎn)廠家有哪些創(chuàng)新服務(wù) 上海大田閥門管道工程供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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，江蘇流量控制閥生產(chǎn)廠家有哪些，氣蝕，江蘇流量控制閥生產(chǎn)廠家有哪些，江蘇流量控制閥生產(chǎn)廠家有哪些。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"><meta name="keywords" content="江蘇流量控制閥生產(chǎn)廠家有哪些,自動(dòng)再循環(huán)閥"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta 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clearfix"><h1>江蘇流量控制閥生產(chǎn)廠家有哪些創(chuàng)新服務(wù) 上海大田閥門管道工程供應(yīng)</h1><div id="sgwki0y" class="proBig"><div id="sw0y8yu" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdatian/637343241812021484/6437117.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="u8oama8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdatian/637343241812021484/6437117.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8koekaw" 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>江蘇流量控制閥生產(chǎn)廠家有哪些,自動(dòng)再循環(huán)閥</p><p><span>***更新：</span>2021-02-07 01:11:38</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="qw2wcay" 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="gemsymi" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="kqo808u" class="box"><p><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，江蘇流量控制閥生產(chǎn)廠家有哪些，氣蝕，江蘇流量控制閥生產(chǎn)廠家有哪些，江蘇流量控制閥生產(chǎn)廠家有哪些。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)。自動(dòng)再循環(huán)閥是一種自動(dòng)降低管路工作壓力的專門裝置.江蘇流量控制閥生產(chǎn)廠家有哪些</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇流量控制閥生產(chǎn)廠家有哪些,自動(dòng)再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343241812021484/6437117.png"></div><p style="text-indent:25px"> 自動(dòng)再循環(huán)閥施工、安裝要點(diǎn)：安裝位置、高度、進(jìn)出口方向有必要契合規(guī)劃要求，注意介質(zhì)活動(dòng)的方向應(yīng)與閥體所標(biāo)箭頭方向一致，連接應(yīng)結(jié)實(shí)緊密。閥門安裝前有必要進(jìn)行外觀檢查，閥門的銘牌應(yīng)契合現(xiàn)行標(biāo)準(zhǔn)《通用閥門標(biāo)志》GB12220的規(guī)定。關(guān)于工作壓力大于1.0MPa及在主干管上起到切斷作用的閥門，安裝前應(yīng)進(jìn)行強(qiáng)度和緊密性能實(shí)驗(yàn)，合格后方準(zhǔn)使用。強(qiáng)度實(shí)驗(yàn)時(shí)，實(shí)驗(yàn)壓力為公稱壓力的1.5倍，持續(xù)時(shí)刻不少于5min，閥門殼體、填料應(yīng)無(wú)滲漏為合格。緊密性實(shí)驗(yàn)時(shí)，實(shí)驗(yàn)壓力為公稱壓力的1.1倍；實(shí)驗(yàn)持續(xù)的時(shí)刻契合GB50243的。流量保護(hù)閥品牌哪家好自動(dòng)再循環(huán)閥防止離心泵在低負(fù)載下由于過(guò)熱，噪音、振動(dòng)帶來(lái)的損壞。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇流量控制閥生產(chǎn)廠家有哪些,自動(dòng)再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343241974296875/6282454.png"></div><p style="text-indent:25px"> 自動(dòng)再循環(huán)閥減壓旁路系統(tǒng)的減壓級(jí)數(shù)是根據(jù)技術(shù)參數(shù)設(shè)定，可以做成單級(jí)也可以作成多級(jí)減壓。特殊的連桿設(shè)計(jì)克服了通常系統(tǒng)中在小流量點(diǎn)附近運(yùn)行時(shí)產(chǎn)生的系統(tǒng)震蕩。自動(dòng)再循環(huán)閥是一個(gè)單獨(dú)的多功能控制系統(tǒng)，能夠動(dòng)態(tài)的感知主流道的變化，隨主流道調(diào)節(jié)旁路介質(zhì)流量，它積極了截止閥，止回閥，多級(jí)調(diào)節(jié)閥減溫減壓裝置功能于一身。自控回流閥自動(dòng)再循環(huán)閥安裝于鍋爐給水泵出口、對(duì)給水泵起安穩(wěn)保護(hù)作用。自動(dòng)再循環(huán)閥(它)用于防止給水泵的低負(fù)荷運(yùn)行時(shí)由于過(guò)熱、嚴(yán)重噪音，不穩(wěn)定汽蝕引起損壞。只要泵的流量低到一定數(shù)值，閥的輔助回流口就會(huì)自動(dòng)地打開，以此保證液泵所需的小流量。</p><p style="text-indent:25px"> 自動(dòng)再循環(huán)閥的閥門出口直管道短距離的計(jì)算公式是10xd(d=閥門出口的內(nèi)徑).如果需要變徑則需保證在閥門進(jìn)出口管道4xd以外，對(duì)于焊接連接的閥門，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)焊接連接的閥門時(shí)需要下列閥門數(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。所以用戶可以直接將閥門焊接在管道上。閥門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，從而進(jìn)行與管道的對(duì)焊。其他工序跟法蘭接口的閥門是一樣的。當(dāng)閥門安裝在系統(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。自動(dòng)再循環(huán)閥在完全開啟時(shí)，具有較小的流阻。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇流量控制閥生產(chǎn)廠家有哪些,自動(dòng)再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343243029707031/6971853.png"></div><p style="text-indent:25px"> 自動(dòng)再循環(huán)閥特點(diǎn)：防氣蝕多級(jí)減壓旁路，降低流速，適用于高壓工況；鍛造閥體，可選用碳鋼或不銹鋼材質(zhì)等；標(biāo)準(zhǔn)型旁路帶止回功能，大工作壓差至30MPa；壓力等級(jí)PN16-PN420，口徑DN25-DN500；可選擇增加手動(dòng)旁路操作功能，以備故障時(shí)使用。自動(dòng)再循環(huán)閥工作原理：旁路多級(jí)減壓：旁路控制系統(tǒng)能低噪音小磨損的把回流介質(zhì)從泵出口的高壓減至適宜回流存儲(chǔ)裝置中的低壓。止回：自動(dòng)再循環(huán)閥還具有止回閥的作用，防止液體回流到泵體中。標(biāo)準(zhǔn)型旁路帶止回功能。其它旁路尺寸可按要求制作；大的旁路流量取決于大的Kv值。自動(dòng)再循環(huán)閥在前期產(chǎn)品采購(gòu)、安裝調(diào)試，以及后期的維護(hù)方面，具有明顯顯的成本優(yōu)勢(shì)。流量保護(hù)閥品牌哪家好</p><p style="text-indent:25px">自動(dòng)再循環(huán)閥前后裝有壓力表，方便觀察閥前和閥后的壓力.江蘇流量控制閥生產(chǎn)廠家有哪些</p><p style="text-indent:25px"> 自動(dòng)再循環(huán)閥封閉后，因?yàn)榻橘|(zhì)或環(huán)境溫度的變化，自動(dòng)再循環(huán)閥部件的熱膨脹會(huì)使閘板和閥座之間的壓力變大，反映到閥桿螺母上，就為再此開啟自動(dòng)再循環(huán)閥帶來(lái)難題。所以，開啟自動(dòng)再循環(huán)閥所需的力矩比封閉自動(dòng)再循環(huán)閥所需的力矩大，此外，對(duì)于一對(duì)互相接觸的密封面來(lái)說(shuō)，它們之間的靜摩擦系數(shù)也比動(dòng)摩擦系數(shù)大，要使它們從靜止?fàn)顟B(tài)產(chǎn)生相對(duì)運(yùn)動(dòng)，需施加較大的力以克服靜摩擦力；因?yàn)闇囟茸兓姑芊饷骈g的壓力變大，需要克服的靜摩擦力也隨之變大，從而使開啟自動(dòng)再循環(huán)閥時(shí)，對(duì)閥桿螺母上施加的力矩有時(shí)會(huì)增大良多。江蘇流量控制閥生產(chǎn)廠家有哪些</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3196863.html</p></div></div></div></div></div><div id="ok8owu8" class="page-right twoColRt"><div id="qu8eciw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ss82qom" 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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