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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="b8pwso2" 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>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>玉樹止回閥報價,止回閥</p><p><span>***更新：</span>2020-10-22 14:31:57</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="msoypg4" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">甘肅誠禹惠物資有限公司</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: </span>0931-7840458</p><p><span>地址: </span>北濱河西路1226之27號(立達建材城A區(qū)11棟104室)</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="le38hys" class="page-proshow02"><p class="title">詳細說明</p><div id="ico2e8i" class="box"><p><p> <span style="font-size:16px;">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。其使用范圍***，可適用大小口徑、各種介質(zhì)、電站高壓系統(tǒng)中使用。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，玉樹止回閥報價。止回閥主要是用來防止管道中的介質(zhì)倒流使用。底閥及鴨嘴閥也是屬于止回閥系類。止回閥可分為升降式、旋啟式、碟型三種：⑴升降式又分為立式和臥式2種，升降式結(jié)構(gòu)是沿軸線移動。實例：①升降式靜音止回閥是用在給排水工程質(zhì)量要求高的管線上；同時可安裝在泵的出口處，要求壓力（）相對高的管網(wǎng)，是防水沖擊止回閥的重要產(chǎn)品。②升降式消聲止回閥適用于高層</span><span style="font-size:16px;">建筑給排水系統(tǒng)中及泵的出口處，玉樹止回閥報價，不適合污水管路場合，玉樹止回閥報價。</span> 止回閥屬于自動閥類，主要用于介質(zhì)單向流動的管道上。玉樹止回閥報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="玉樹止回閥報價,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024271513671/7973206.png"></div><p> <span style="font-size:16px;">法蘭式橡膠瓣止回閥主要用于臥式安裝于給排水系統(tǒng)，可安裝于水泵出水口處、以防止倒流及水錘對泵的損害，還可安裝在蓄水池進出水管的旁通管上，以防止池水倒流至給水系統(tǒng)中。閥門中的橡膠瓣由鋼板、鋼棒及強化尼龍布做襯底，外層披覆橡膠制成，閥瓣開關(guān)壽命可達100萬次，采用全流面積設計，具有水頭損失小，不易堆積雜物，維修簡便等特性。旋啟式止回閥有一個斜置并能繞軸旋轉(zhuǎn)的閥瓣，工作原理與升降式止回閥相似。止回閥常用作抽水裝置的底閥，可以阻止水的回流。止回閥與截止閥組合使用，可起到安全隔離的作用。缺點是阻力大，關(guān)閉時密封性差。止回閥這種類型的閥門的作用是只允許介質(zhì)向一個方向流動，而且阻止反方向流動。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</span><span style="font-size:16px;">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。</span> 甘谷止回閥哪家好升降式止回閥可分為立式和直通式兩種。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="玉樹止回閥報價,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024172031250/1230386.png"></div><p> <span style="font-size:16px;">蝶式止回閥的安裝位置不受限制，可以安裝在水平管路上，也可以安裝在垂直或傾斜的管線上；11隔膜式止回閥適用于易產(chǎn)生水擊的管路上，隔膜可以很好地消除介質(zhì)逆流時產(chǎn)生的水擊，它一般使用在低壓常溫管道上，特別適用于自來水管道上，一般介質(zhì)工作溫度在-12--120℃之間，工作壓力<，但隔膜式止回閥可以做到較大口徑，DN比較大可以達到2000mm以上；球形止回閥適用于中低壓管路，可以制成大口徑；13球形止回閥的殼體材料可以用不銹鋼制作，密封件的空心球體可以包裹聚四氟乙烯工程塑料，所以在一般腐蝕性介質(zhì)的管路上也可應用，工作溫度在-101--150℃之間，其公稱壓力≤，公稱通經(jīng)范圍在200—1200之間；球形止回閥的殼體材料可以用不銹鋼制作，密封件的空心球體可以包裹聚四氟乙烯工程塑料，所以在一般腐蝕性介質(zhì)的管路上也可應用，工作溫度在-101--150℃之間，其公稱壓力≤，公稱通經(jīng)范圍在200—1200之間。</span> </p><p> <span style="font-size:16px;">適用場合是低壓大口徑，而且安裝場合受到限制；蝶式止回閥的安裝位置不受限制，可以安裝在水平管路上，也可以安裝在垂直或傾斜的管線上；隔膜式止回閥適用于易產(chǎn)生水擊的管路上，隔膜可以很好地消除介質(zhì)逆流時產(chǎn)生的水擊，它一般使用在低壓常溫管道上，特別適用于自來水管道上，一般介質(zhì)工作溫度在-12--120℃之間，工作壓力<，但隔膜式止回閥可以做到較大口徑，DN比較大可以達到2000mm以上；球形止回閥適用于中低壓管路，可以制成大口徑；球形止回閥的殼體材料可以用不銹鋼制作，密封件的空心球體可以包裹聚四氟乙烯工程塑料，所以在一般腐蝕性介質(zhì)的管路上也可應用，工作溫度在-101--150℃之間，其公稱壓力≤，公稱通經(jīng)范圍在200—1200之間；對于不可壓縮性流體用止回閥選擇時首先要對所需要的關(guān)閉速度進行評估，第二步是選擇可能滿足所需要的關(guān)閉速度的止回閥的類型；對于可壓縮性流體用止回閥選擇時可以根據(jù)不可壓縮性流體用止回閥的類似方法來進行選擇，如果介質(zhì)流動范疇很大，則用于可壓縮性流體的止回閥可使用一減速裝置，如果介質(zhì)流連續(xù)不段地快速停止和啟動，如壓縮機的出口那樣，則使用升降式止回閥。</span> 它依靠管道內(nèi)流動介質(zhì)的壓力推動閥瓣，來實現(xiàn)閥門的關(guān)閉和開啟。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="玉樹止回閥報價,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024300068359/4895710.png"></div><p> <span style="font-size:16px;">為了可靠，止回閥的尺寸必須適當。”有時人們認為管線的尺寸決定了閥門的尺寸。并非如此，尤其是對于止回閥。為了獲得穩(wěn)定的性能和長壽命，止回閥的尺寸必須適合其要處理的流量。他們需要經(jīng)歷足夠的流量以在正常流量條件下保持完全打開?！翱偸沁M行尺寸計算，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。止回閥過大會導致流速低，從而無法保持閥門始終打開。這會導致不穩(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致的其他系統(tǒng)停機，這會導致閥門過早的機械磨損以及可能帶來的額外維護成本。</span> 止回閥必須安裝在泵的出口、出口控制閥之前的位置。海北州止回閥價格</p><p style="text-indent:25px">受工作原理的影響，只能安裝在水平管道上;玉樹止回閥報價</p><p> <span style="font-size:16px;">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）。止回閥這種類型的閥門的作用是只允許介質(zhì)向一個方向流動，而且阻止反方向流動。目前市面上所有的油煙機止回閥，對閥蓋的約束有依靠閥蓋自身重力閉合，彈簧加壓閉合，微磁力閉合來實現(xiàn)密封，還有的電動閉合！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</span><span style="font-size:16px;">閥瓣的自重合閥瓣作用于閥座，從而切斷流動。</span> 玉樹止回閥報價</p><p style="text-indent:25px">甘肅誠禹惠物資有限公司擁有閥門及配件、水泵、水暖器材、五金交電、機械設備、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、成套設備、電線電纜、冶金機械、石化機械、家用電器、機械設備、機電設備及配件、保溫材料、裝潢材料、玻璃儀器、燈具、化工產(chǎn)品（不含危險化學品、易制毒化學品、監(jiān)控化學品）的批發(fā)、零售等多項業(yè)務，主營業(yè)務涵蓋誠禹惠閥門，球閥批發(fā)，閥門批發(fā)，蝶閥批發(fā)。目前我公司在職員工以90后為主，是一個有活力有能力有創(chuàng)新精神的團隊。誠實、守信是對企業(yè)的經(jīng)營要求，也是我們做人的基本準則。公司致力于打造高品質(zhì)的誠禹惠閥門，球閥批發(fā)，閥門批發(fā)，蝶閥批發(fā)。公司深耕誠禹惠閥門，球閥批發(fā)，閥門批發(fā)，蝶閥批發(fā)，正積蓄著更大的能量，向更廣闊的空間、更寬泛的領(lǐng)域拓展。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1662776.html</p></div></div></div></div></div><div id="mqco8ug" class="page-right twoColRt"><div id="w2evcdc" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="2rztkbi" 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配件哪家強信息推薦自業(yè)物資供應" class="vcenter" 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