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return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u id="qgqbi"></u><noframes id="qgqbi"></noframes><menu id="qgqbi"></menu><blockquote id="qgqbi"></blockquote><track 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id="uhnkl83" class="searchbox"><div id="xpevho9" class="searchLt"><div id="az22fvu" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會</a></div><div id="j3lseqk" class="clearfix searchWrap"><div id="fr4mdz3" class="searchInput"><input type="text" name="keywords" placeholder="請輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="udxo8zp" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = "index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="rwq2fc9" class="twoCol"><div id="kjblz7x" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機(jī)械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_jnsbrt/">節(jié)能設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-jnsbrt_qtjnsbyx/">其他節(jié)能設(shè)備</a>?吐魯番緩閉止回閥報價新疆遠(yuǎn)大通用閥門供應(yīng)</p><div id="uewtaxb" class="leftbox clearfix"><h1>吐魯番緩閉止回閥報價新疆遠(yuǎn)大通用閥門供應(yīng)</h1><div id="vfc7d7z" class="proBig"><div id="qkrognh" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864801464844/3391347.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ncebdfh" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864801464844/3391347.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="akmolnp" 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>新疆維吾爾自治區(qū)</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>吐魯番緩閉止回閥報價</p><p><span>***更新：</span>2020-06-25 03:24:52</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="n2hjbnp" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">新疆遠(yuǎn)大通用閥門有限公司</a></p><p><span>聯(lián)系人：</span>李嘉豪</p><p><span>郵箱: </span>1183099099@qq.com</p><p><span>電話: </span>18999955968</p><p><span>傳真: </span>0991_6877477</p><p><span>網(wǎng)址: </span>http://www.xjyuanda.com</p><p><span>手機(jī): </span>0991-6877477</p><p><span>地址: </span>烏魯木齊市高新技術(shù)產(chǎn)業(yè)開發(fā)區(qū)（新市區(qū)）清水街213號</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="xuwtvxz" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="2wbyfmz" class="box"><p><p> 3）中壓閥：指公稱壓力PN為、、。（4）高壓閥：指公稱壓力PN為～。（5）超高壓閥：指公稱壓力PN≥。按工作溫度：（1）**溫閥：用于介質(zhì)工作溫度t<－101℃的閥門。（2）常溫閥：用于介質(zhì)工作溫度－29℃425℃的閥門。按驅(qū)動方式：按驅(qū)動方式可分為自動閥類、動力驅(qū)動閥類和手動閥類。按公稱通徑（1）小通徑閥門：公稱通徑DN≤40mm的閥門。（2）中通徑閥門：公稱通徑DN為50～300mm的閥門。（3）大通徑閥門：公稱通徑DN為350～1200mm的閥門。（4）特大通徑閥門：公稱通徑DN≥1400mm的閥門按結(jié)構(gòu)特征閥門結(jié)構(gòu)特征閥門的結(jié)構(gòu)特征是根據(jù)關(guān)閉件相對于閥座移動的方向可分為：（1）截門形：關(guān)閉件沿著閥座中心移動；如截止閥（2）旋塞和球形：關(guān)閉件是柱塞或球，圍繞本身的中心線旋轉(zhuǎn)；如旋塞閥、球閥（3）閘門形：關(guān)閉件沿著垂直閥座中心移動；如閘閥、閘門等（4）旋啟形：關(guān)閉件圍繞閥座外的軸旋轉(zhuǎn)；如旋啟式止回閥等（5）蝶形：關(guān)閉件的圓盤，吐魯番緩閉止回閥報價，圍繞閥座內(nèi)的軸旋轉(zhuǎn)；如蝶閥、蝶形止回閥等（6）滑閥形：關(guān)閉件在垂直于通道的方向滑動。如滑按連接方法（1）螺紋連接閥：閥體帶有內(nèi)螺紋或外螺紋，與管道螺紋連.，吐魯番緩閉止回閥報價.（2）法蘭連接閥門：閥體帶有法蘭，吐魯番緩閉止回閥報價，與管道法蘭連接。。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吐魯番緩閉止回閥報價" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864801464844/3391347.jpg"></div><p> 對夾式蝶閥是用雙頭螺栓將閥門連接在兩管道法蘭之間，法蘭式蝶閥是閥門上帶有法蘭，用螺栓將閥門上兩端法蘭連接在管道法蘭上。球閥球閥是由旋塞閥演變而來。它具有相同的旋轉(zhuǎn)90度提動作，不同的是旋塞體是球體，有圓形通孔或通道通過其軸線。球面和通道口的比例應(yīng)該是這樣的，即當(dāng)球旋轉(zhuǎn)90度時，在進(jìn)、出口處應(yīng)全部呈現(xiàn)球面，從而截斷流動。球閥只需要用旋轉(zhuǎn)90度的操作和很小的轉(zhuǎn)動力矩就能關(guān)閉嚴(yán)密。完全平等的閥體內(nèi)腔為介質(zhì)提供了阻力很小、直通的流道。通常認(rèn)為球閥最適宜直接做開閉使用，但近來的發(fā)展已將球閥設(shè)計成使它具有節(jié)流和控制流量之用。球閥的主要特點是本身結(jié)構(gòu)緊湊，易于操作和維修，適用于水、溶劑、酸和天然氣等一般工作介質(zhì)，而且還適用于工作條件惡劣的介質(zhì)，如氧氣、過氧化氫、甲烷和乙烯等。球閥閥體可以是整體的，也可以是組合式的。按防止介質(zhì)倒流選用閥門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。其中止回閥就屬于這種類型的閥門，它包括旋啟式止回閥和升降式止回閥。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吐魯番緩閉止回閥報價" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864799892578/8112427.jpg"></div><p> 閘閥在養(yǎng)護(hù)時則必須處于關(guān)閉狀態(tài)，確保潤滑脂沿密封圈充滿密封槽溝，如果開位。密封脂則直接掉入流道或閥腔，造成浪費。第四、閥門注脂時，常忽略注脂效果問題。注脂操作中壓力、注脂量、開關(guān)位都正常。但為確保閥門注脂效果，有時需開啟或關(guān)閉閥門，對潤滑效果進(jìn)行檢查，確認(rèn)閥門閥球或閘板表面潤滑均勻。第五、注脂時，要注意閥體排污和絲堵泄壓問題。閥門打壓試驗后，密封腔閥腔內(nèi)氣體和水分因環(huán)境溫度升高而升壓，注脂時要先進(jìn)行排污泄壓，以利于注脂工作的順利進(jìn)行。注脂后密封腔內(nèi)的空氣和水分被充分置換出來。及時泄掉閥腔壓力，也保障了閥門使用安全。注脂結(jié)束后，一定要擰緊排污和泄壓絲堵，以防意外發(fā)生。第六、注脂時，要注意出脂均勻的問題。正常注脂時，距離注脂口**近的出脂孔先出脂，然后到低點，**后是高點，逐次出脂。如果不按規(guī)律或不出脂，證明存在堵塞，及時進(jìn)行清通處理。第七、注脂時也要觀察閥門通徑與密封圈座平齊問題。例如球閥，如果存在開位過盈，可向里調(diào)整開位限位器，確認(rèn)通徑平直后鎖定。調(diào)整限位不可只追求開或關(guān)一方位置，要整體考慮。如果開位平齊，關(guān)不到位，會造成閥門關(guān)不嚴(yán)。同理，調(diào)整關(guān)到位，也要考慮開位相應(yīng)的調(diào)整。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/381921.html</p></div></div></div></div></div><div id="pegdpby" class="page-right twoColRt"><div id="bli2t9d" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="scu3vf8" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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