中衛(wèi)止回閥銷(xiāo)售電話甘肅誠(chéng)禹惠物資供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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，中衛(wèi)止回閥銷(xiāo)售電話。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，中衛(wèi)止回閥銷(xiāo)售電話、蝶式單瓣，以上幾種止回閥在連"><meta name="keywords" content="中衛(wèi)止回閥銷(xiāo)售電話,止回閥"><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 name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" 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clearfix"><h1>中衛(wèi)止回閥銷(xiāo)售電話甘肅誠(chéng)禹惠物資供應(yīng)</h1><div id="wuarxof" class="proBig"><div id="uovx2j5" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024271513671/7973206.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="jh2hq2i" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024271513671/7973206.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ymjardu" 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>甘肅省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>中衛(wèi)止回閥銷(xiāo)售電話,止回閥</p><p><span>***更新：</span>2021-01-20 00:19:57</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="nvri8cq" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">甘肅誠(chéng)禹惠物資有限公司</a></p><p><span>聯(lián)系人：</span>楊和平</p><p><span>郵箱: </span>349134533@qq.com</p><p><span>電話: </span>18294448288</p><p><span>傳真: </span>0931_</p><p><span>網(wǎng)址: </span>http://www.gscyhwz.com</p><p><span>手機(jī): </span>0931-7840458</p><p><span>地址: </span>北濱河西路1226之27號(hào)(立達(dá)建材城A區(qū)11棟104室)</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="3zctfgs" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="ha2zpkl" class="box"><p><p> <span style="font-size:16px;">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，中衛(wèi)止回閥銷(xiāo)售電話。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，中衛(wèi)止回閥銷(xiāo)售電話、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。安裝止回閥是為了保證水泵內(nèi)部水流的流向，從而保障水泵的正常工作。所以關(guān)于止回閥的安裝位置，中衛(wèi)止回閥銷(xiāo)售電話，到底是安裝在水泵前還是水泵后，可以分兩種情況：一種是安裝在水泵前豎吸管端頭，也叫底閥。目的是為了不用抽一次水向水泵充一次水，因?yàn)樗脙?nèi)以及泵前的吸管內(nèi)無(wú)水時(shí)水泵只能空轉(zhuǎn)抽不上水，所以水泵內(nèi)必須充滿水才能抽出水。這種水泵的安裝是高于液面時(shí)的一種方法，也叫負(fù)壓法。</span> 與旋啟式止回閥相比，流阻大，不宜用于大口徑(DN50及以上)場(chǎng)合，一般情況下，適合于DN40及更小的閥門(mén);中衛(wèi)止回閥銷(xiāo)售電話</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="中衛(wèi)止回閥銷(xiāo)售電話,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024271513671/7973206.png"></div><p> <span style="font-size:16px;">為了確保沒(méi)有沉積物殘留在擋板或其鉸鏈中，從而妨礙止回閥的正常工作或密封，建議至少每年一兩次的定期維護(hù)，通常在春季和秋季。另外閥門(mén)必須始終保持可觸及的狀態(tài)，如果閥門(mén)位于墻壁或地下室地板下，則必須提供檢修面板。橫向排水止回閥的維護(hù)程序（建議由專業(yè)水暖工來(lái)操作）：請(qǐng)務(wù)必穿戴必要的防護(hù)設(shè)備（手套和護(hù)目鏡），以避免與污水接觸，因?yàn)檫@有的危險(xiǎn)。卸下擰緊或用螺栓固定的檢修蓋或塞子。拆下?lián)醢暹M(jìn)行清潔，并檢查橡膠密封條的狀況；如有必要，請(qǐng)更換擋板。清潔鉸鏈；它必須沒(méi)有任何碎屑，以免影響閥門(mén)的運(yùn)行。檢查閥門(mén)上游是否有沉積物。根據(jù)需要進(jìn)行清潔。按照正確的方向重新安裝閥門(mén)，確保沒(méi)有障礙物阻止其擺動(dòng)。擰緊檢修蓋或固定的檢修蓋的螺栓，并在必要時(shí)更換檢修蓋。</span> 中衛(wèi)止回閥銷(xiāo)售電話折形流道，不宜用于壓力脈動(dòng)工況條件;不宜用于高壓氧氣介質(zhì)工況條件;不能用于有通球要求的工況條件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="中衛(wèi)止回閥銷(xiāo)售電話,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024476875000/9919477.png"></div><p> <span style="font-size:16px;">離心泵出口的止回閥的作用就是防止出口管路中的液體倒流形成水錘造成泵內(nèi)葉輪損傷。止回閥的安裝與泵的多少無(wú)關(guān),止回閥主要為了在泵停止運(yùn)行后，防止液體回流，使泵倒轉(zhuǎn),從而造成損壞泵的事故。泵出口止回閥的安裝1、旋啟式止回閥一般安裝在水平管道上：對(duì)于口徑DN<80mm的止回閥，也可安裝在垂直或向上傾斜的管道上。2、直通式升降式止回閥應(yīng)安裝在水平管道上;立式升降式止回閥必須安裝在垂直管道上，介質(zhì)為自下而上流動(dòng)。3、由于止回閥容易損壞，因此，應(yīng)靠近泵出口安裝止回閥，在止回閥上部設(shè)有切斷閥(一般用球閥</span><span style="font-size:16px;">或閘閥)，方便檢修。4、為便于止回閥拆卸前泄壓，對(duì)于止回閥本身不帶放凈閥的，應(yīng)在止回閥與切斷閥之間加裝泄壓用放凈閥。</span> </p><p> <span style="font-size:16px;">止回閥是僅允許介質(zhì)沿一個(gè)方向流動(dòng)的裝置，閥瓣依靠自身重量及介質(zhì)壓力產(chǎn)生動(dòng)作，實(shí)現(xiàn)阻斷介質(zhì)倒流的一種閥門(mén)。它根據(jù)系統(tǒng)中的壓力自動(dòng)工作，運(yùn)行中不需要用戶或執(zhí)行裝置來(lái)干預(yù)，屬于自動(dòng)閥類。又稱為逆止閥、單向閥、回流閥或隔離閥。按結(jié)構(gòu)分為升降式、旋啟式和蝶式止回閥。主要作用：防止介質(zhì)倒流、防止水泵反轉(zhuǎn)、防止容器內(nèi)的介質(zhì)泄露。升降式止回閥的閥瓣沿著閥體垂直中心線動(dòng)作，結(jié)構(gòu)與截止閥類似，但只有閥瓣，而沒(méi)有人為旋起的閥桿。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。工作原理：旋啟式止回閥的閥瓣繞閥座通道里的轉(zhuǎn)軸做旋轉(zhuǎn)運(yùn)動(dòng)，順流時(shí)閥瓣打開(kāi)，有逆向流動(dòng)時(shí)閥瓣關(guān)閉。適用于低</span><span style="font-size:16px;">流速和水流方向不變的大口徑管網(wǎng)系統(tǒng)。</span> 止回閥的安裝位置如何確定？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="中衛(wèi)止回閥銷(xiāo)售電話,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024172031250/1230386.png"></div><p> <span style="font-size:16px;">閉止回閥緩閉止回閥是一種通過(guò)增加執(zhí)行機(jī)構(gòu)、阻尼器而實(shí)現(xiàn)緩慢關(guān)閉的止回閥。緩閉止回閥需要配合開(kāi)關(guān)閥使用。當(dāng)介質(zhì)在重力作用下倒流時(shí)，止回閥緩慢關(guān)閉，有效地避免了因普通止回閥突然關(guān)閉產(chǎn)生的水錘。其缺點(diǎn)為因?yàn)殛P(guān)閉速度較慢，一部分介質(zhì)不可避免地倒流進(jìn)入離心泵，泵因此可能會(huì)產(chǎn)生機(jī)械故障。2、設(shè)置緩閉止回蝶閥這是一種在大型水利系統(tǒng)中應(yīng)用比較普遍、效果比較好的方法。緩閉止回蝶閥由蝶閥、執(zhí)行結(jié)構(gòu)及液壓控制系統(tǒng)構(gòu)成。該系統(tǒng)只需安裝緩閉止回蝶閥即可，即能起到止回閥的作用又能起到開(kāi)關(guān)閥的作用。當(dāng)離心泵開(kāi)啟的時(shí)候，其按先慢后快的步驟開(kāi)啟，保證泵低載開(kāi)啟;當(dāng)泵突然停止工作時(shí)，其按先快后慢的步驟關(guān)閉，即可以避免水錘的產(chǎn)生，又可以避免過(guò)多的介質(zhì)倒流通過(guò)泵，引起泵的機(jī)械故障。</span> 止回閥必須安裝在泵的出口、出口控制閥之前的位置。平?jīng)鲋够亻y哪個(gè)好</p><p style="text-indent:25px">止回閥必須安裝在泵的出口、出口控制閥之前的位置，以便檢修止回閥。中衛(wèi)止回閥銷(xiāo)售電話</p><p> <span style="font-size:16px;">旋啟式止回閥又稱單向閥或逆止閥，其作用是防止管路中的介質(zhì)倒流。啟閉件靠介質(zhì)流動(dòng)和力量自行開(kāi)啟或關(guān)閉，以防止介質(zhì)倒流的閥門(mén)叫止回閥。止回閥屬于自動(dòng)閥類，主要用于介質(zhì)單向流動(dòng)的管道上，只允許介質(zhì)向一個(gè)方向流動(dòng)，以防止發(fā)生事故。本類閥門(mén)在管道中一般應(yīng)當(dāng)水平安裝。旋啟式止回閥適用于公稱壓力、Class150-2500；公稱通徑DN15~1200mm、NPS1/2~48；工作溫度－196~540℃的各種管路上，用于防止介質(zhì)倒流。通過(guò)選用不同的材質(zhì)(WCB,CF8(M),CF3(M),1Gr5Mo,15CrMo1V，可適用于水、蒸汽、油品、硝酸、醋酸、強(qiáng)氧化性介質(zhì)及尿素等多種介質(zhì)。主要用于石油、化工、制藥、化肥、電力等管路上。旋啟式止回閥的采用內(nèi)裝搖臂旋啟式結(jié)構(gòu)，閥門(mén)的所有啟閉件都裝于閥體內(nèi)部，不穿透閥體，除了中法蘭部位用密封墊片和密封環(huán)外，整體沒(méi)有外漏點(diǎn)，杜絕閥門(mén)外泄的可能。旋啟式止回閥搖臂和閥瓣連接處采用球面連接的結(jié)構(gòu)，使得閥瓣在360度范圍內(nèi)有一定</span><span style="font-size:16px;">的自由度，有適當(dāng)?shù)奈⒘课恢醚a(bǔ)償。適用于清凈介質(zhì)。</span> 中衛(wèi)止回閥銷(xiāo)售電話</p><p style="text-indent:25px">甘肅誠(chéng)禹惠物資有限公司是一家閥門(mén)及配件、水泵、水暖器材、五金交電、機(jī)械設(shè)備、建筑材料、管道管材管件、電子產(chǎn)品（不含衛(wèi)星地面接收設(shè)施）、塑料制品、辦公用品、勞保用品、金屬制品及材料、消防器材、五金工具、成套設(shè)備、電線電纜、冶金機(jī)械、石化機(jī)械、家用電器、機(jī)械設(shè)備、機(jī)電設(shè)備及配件、保溫材料、裝潢材料、玻璃儀器、燈具、化工產(chǎn)品（不含危險(xiǎn)化學(xué)品、易制毒化學(xué)品、監(jiān)控化學(xué)品）的批發(fā)、零售的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠(chéng)實(shí)可信的企業(yè)。甘肅誠(chéng)禹惠物資擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供誠(chéng)禹惠閥門(mén)，球閥批發(fā)，閥門(mén)批發(fā)，蝶閥批發(fā)。甘肅誠(chéng)禹惠物資繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長(zhǎng)，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。甘肅誠(chéng)禹惠物資始終關(guān)注機(jī)械及行業(yè)設(shè)備市場(chǎng)，以敏銳的市場(chǎng)洞察力，實(shí)現(xiàn)與客戶的成長(zhǎng)共贏。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2918987.html</p></div></div></div></div></div><div id="j7pxy8h" class="page-right twoColRt"><div id="8stklwx" class="box01 margin10 clearfix"><h3><a 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