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src="https://tyunfile.71360.com/UploadFile/jingzhou/637279448654775391/2829326.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="rv7ajfw" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jingzhou/637279448654775391/2829326.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="z8t2dkw" 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>浙江省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海鑄造電站止回閥價格,止回閥</p><p><span>***更新：</span>2021-02-04 09:16:52</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="r8aubnj" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">浙江京州閥門制造有限公司</a></p><p><span>聯(lián)系人：</span>張和榮</p><p><span>郵箱: </span>maggiez@jcs-valve.com</p><p><span>電話: </span>15888733099</p><p><span>傳真: </span>0577_67351896</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0577-67359296</p><p><span>地址: </span>甌北街道五星工業(yè)區(qū)上玉路</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="d83lc87" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="xqplnzg" class="box"><p><p style="text-indent:25px">蝶式止回閥包括旋啟式止回閥和升降式止回閥。旋啟式止回閥有一介鉸鏈機(jī)構(gòu)，還有一個像門一樣的閥瓣自由地靠在傾斜的閥座表面上。為了確保閥瓣每次都能到達(dá)閥座面的合適位置，閥瓣設(shè)計在鉸鏈機(jī)構(gòu)，以便閥瓣具有足夠有旋啟空間，并使閥瓣真正的、全方面的與閥座接觸。閥瓣可以全部用金屬制成，也可以在金屬上鑲嵌皮革、橡膠、或者采用合成覆蓋面，這取決于使用性能的要求。旋啟式止回閥在完全打開的狀況下，其流體壓力幾乎不受阻礙，因此通過閥門的壓力降相對較小。升降式止回閥的閥瓣座落位于閥體上閥座密封面上。此閥門除了閥瓣可以自由地升降之外，其余部分如同截止閥一樣，流體壓力使閥瓣從閥座密封面上抬起，介質(zhì)回流導(dǎo)致閥瓣回落到閥座上，并切斷流動。根據(jù)使用條件，閥瓣可以是全金屬結(jié)構(gòu)，也可以是在閥瓣架上鑲嵌橡膠墊或橡膠環(huán)的形式。像截止閥一樣，上海鑄造電站止回閥價格，流體通過升降式止回閥的通道也是狹窄的，因此通過升降式止回閥的壓力降比旋啟式止回閥大些，上海鑄造電站止回閥價格，而且旋啟式止回閥的流量受到的限制很少。本類閥門在管道中一般應(yīng)當(dāng)水平安裝。對夾雙瓣旋啟式止回閥結(jié)構(gòu)小，上海鑄造電站止回閥價格、重量輕，是一種發(fā)展較快的止回閥。上海鑄造電站止回閥價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海鑄造電站止回閥價格,止回閥" src="https://tyunfile.71360.com/UploadFile/jingzhou/637279448654775391/2829326.png"></div><p style="text-indent:25px">電站止回閥按結(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臥式兩種。旋啟式止回閥分為單瓣式、雙瓣式和多瓣式三種。蝶式止回閥為直通式、以上幾種止回閥在連接形式上可分為螺紋連接、法蘭連接和焊接三種。電站止回閥：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。也屬于止回閥類。啟閉件靠介質(zhì)流動和力量自行開啟或關(guān)閉，可以防止介質(zhì)倒流的閥門叫止回閥。止回閥屬于自動閥類，主要用于介質(zhì)單向流動的管道上，只允許介質(zhì)向一個方向流動，以防止發(fā)生事故。上海鑄造電站止回閥價格在管線中不要使電站止回閥承受重量，大型的止回閥應(yīng)**支撐，使之不受管系產(chǎn)生的壓力的影響。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海鑄造電站止回閥價格,止回閥" src="https://tyunfile.71360.com/UploadFile/jingzhou/637279448559589844/9647506.png"></div><p style="text-indent:25px">高溫高壓焊接止回閥：支管兩端為焊結(jié)結(jié)構(gòu)，焊結(jié)坡口可按標(biāo)準(zhǔn)或用戶要求制作，適用于火電廠、石油化工、冶金等高溫高壓的水、蒸氣、油品、過熱蒸汽的管道上作防止介質(zhì)回流的裝置。一種是遵循ANSIB16.34和JIS E101標(biāo)準(zhǔn)的引進(jìn)型；另一種是Jb3595標(biāo)準(zhǔn)的國標(biāo)型。其遵循的溫度、壓力等級是一致的，在一些管道中存在著某種互換關(guān)系。中部采用無閥蓋壓力自緊式，在高溫高壓工況下具有良好的密封性能。自密封圈有兩種材料：一種是低碳鋼，另一種是柔性石墨夾316絲(網(wǎng))。密封面堆焊鉆基硬質(zhì)合金。其加工后的純金屬層≥3mm，具有耐磨、耐高溫、抗腐蝕、抗擦傷、使用壽命長。</p><p style="text-indent:25px">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(jìn)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(jī)的出口那樣，則使用升降式止回閥；止回閥應(yīng)確定相應(yīng)的尺寸，閥門供應(yīng)商必須提供選定尺寸的資料數(shù)據(jù)，這樣就能找到給定流速下閥門全開時的閥門尺寸大?。粚τ贒N50mm以下的高中壓止回閥，宜選用立式升降止回閥和直通式升降止回閥；對于DN50mm以下的低壓止回閥，宜選用蝶式止回閥、立式升降止回閥和隔膜式止回閥；對于DN大于50mm、小于600mm的高中壓止回閥，宜選用旋啟式止回閥；對于DN大于200mm、小于1200mm的中低壓止回閥，宜選用無磨損球形止回閥；對于DN大于50mm、小于2000mm的低壓止回閥，宜選用蝶式止回閥和隔膜式止回閥；對于要求關(guān)閉時水擊沖擊比較小或無水擊的管路，宜選用緩閉式旋啟止回閥和緩閉式蝶形止回閥。國標(biāo)止回閥:閥瓣沿著閥體中心線滑動的閥門。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海鑄造電站止回閥價格,止回閥" src="https://tyunfile.71360.com/UploadFile/jingzhou/637279448529589844/6717776.png"></div><p style="text-indent:25px">旋啟式止回閥安裝方法：旋啟式止回閥的閥瓣呈圓盤狀，繞閥座通道的轉(zhuǎn)軸作旋轉(zhuǎn)運(yùn)動，因閥內(nèi)通道成流線型，流動阻力比升降式止回閥小，適用于低流速和流動不常變化的大口徑場合，但不宜用于脈動流，其密封性能不及升降式。旋啟式止回閥分單瓣式、雙瓣式和多半式三種，這三種形式主要按閥門口徑來分，目的是為了防止介質(zhì)停止流動或倒流時，減弱水力沖擊。升降式止回閥：閥瓣沿著閥體垂直中心線滑動的止回閥，升降式止回閥只能安裝在水平管道上，在高壓小口徑止回閥上閥瓣可采用圓球。升降式止回閥的閥體形狀與截止閥一樣（可與截止閥通用），因此它的流體阻力系數(shù)較大。電站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)。日標(biāo)旋啟止回閥廠家</p><p style="text-indent:25px">升降式垂直瓣止回閥應(yīng)安裝在垂直管道上。上海鑄造電站止回閥價格</p><p style="text-indent:25px">焊接高溫高壓止回閥設(shè)計制造按ANSIB16.34、E101標(biāo)準(zhǔn)，可與進(jìn)口設(shè)備配備使用。其耐壓部件選用質(zhì)量耐熱合金鋼制造，高溫性能好，承受壓力高，耐用、安全、可靠。其中腔采用壓力自緊式密封結(jié)構(gòu)，內(nèi)腔壓力越高密封性能越好。支管兩端為支管兩端為對焊連接，適應(yīng)不同的接管要求。閥瓣、閥座的密封面采用司鈷基硬質(zhì)合金堆焊而成，耐磨、耐高溫，抗擦傷性能好、使用壽命長。閥瓣圍繞閥座外的銷軸旋轉(zhuǎn)，減少關(guān)閉時發(fā)生猛烈沖擊。內(nèi)裝式的銷軸結(jié)構(gòu)，減小外泄漏點(diǎn)，使用更可靠。上海鑄造電站止回閥價格</p><p style="text-indent:25px">浙江京州閥門制造有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家生產(chǎn)型的公司。公司業(yè)務(wù)涵蓋刀閘閥，穿透式刀閘閥，礦漿閥，漿液閥等，價格合理，品質(zhì)有保證。公司從事機(jī)械及行業(yè)設(shè)備多年，有著創(chuàng)新的設(shè)計、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。浙江京州閥門憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3157923.html</p></div></div></div></div></div><div id="udkrtnz" class="page-right twoColRt"><div id="cb83yah" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="yxo8dul" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="ycjvhyv" class="recomPic likePro"><a 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