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class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<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_famenti/">閥門(mén)</a>?<a href="http://www.cdcfah.com/cp/third-famenti_diefakna/">蝶閥</a>?湖北煉鋼廠真空管道蝶閥重量頂耕國(guó)際貿(mào)易供應(yīng)</p><div id="ap8u28f" class="leftbox clearfix"><h1>湖北煉鋼廠真空管道蝶閥重量頂耕國(guó)際貿(mào)易供應(yīng)</h1><div id="kel8zch" class="proBig"><div id="bqsm2el" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129749327031250/8086057.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="o78yijq" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129749327031250/8086057.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="gvcel7h" 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>湖北煉鋼廠真空管道蝶閥重量</p><p><span>***更新：</span>2020-05-25 06:31:04</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="23yzwiz" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">頂耕國(guó)際貿(mào)易（上海）有限公司</a></p><p><span>聯(lián)系人：</span>查劍來(lái)</p><p><span>郵箱: </span></p><p><span>電話: </span>18521036598</p><p><span>傳真: </span>021_61637356</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-61637356</p><p><span>地址: </span>大葉公路5225號(hào)1幢2370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="0jnp328" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="5ryvmtv" class="box"><p><p> 1）閥門(mén)安裝前，湖北煉鋼廠真空管道蝶閥重量，應(yīng)先將管道內(nèi)部清理干凈，湖北煉鋼廠真空管道蝶閥重量，以防止氧化鐵屑、焊渣、硬顆?；蚱渌愇锕蝹y門(mén)的密封面。同時(shí)對(duì)閥門(mén)的型號(hào)規(guī)格認(rèn)真檢查核對(duì)，認(rèn)真檢查閥門(mén)是否關(guān)閉嚴(yán)密。 2）具有方向性的閥門(mén)注意安裝方向，不得裝反。 3）由于截止閥的閥腔左右不對(duì)稱，安裝后流體由下而上流經(jīng)法口。 4）閘閥也不宜倒裝，否則會(huì)使介質(zhì)長(zhǎng)期駐留在閥腔內(nèi)，容易腐蝕閥桿，湖北煉鋼廠真空管道蝶閥重量。明桿閘閥不宜安裝在底下，以免輪柱桿銹蝕。 5）止回閥有升降式和旋啟式兩類。升降式止回閥只能水平安裝，旋啟式止回閥要保證其軸銷(xiāo)安裝水平。旋啟式止回閥可以用在水平垂直管道上。 6）一般應(yīng)在關(guān)閉狀態(tài)下安裝。 7）安裝或更換較重的法門(mén)時(shí)，起吊的鎖具不能系在手輪或閥桿上，而應(yīng)系在閥體上，以免損壞手輪或閥桿等零件。 8）減壓閥安裝時(shí)，其前后都應(yīng)該配置切斷閥和壓力表，閥后設(shè)置安全閥。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北煉鋼廠真空管道蝶閥重量" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129749327031250/8086057.png"></div><p> 蝶閥又叫翻板閥，是一種結(jié)構(gòu)簡(jiǎn)單的調(diào)節(jié)閥，可用于低壓管道介質(zhì)的開(kāi)關(guān)控制的蝶閥是指關(guān)閉件（閥瓣或蝶板）為圓盤(pán)，圍繞閥軸旋轉(zhuǎn)來(lái)達(dá)到開(kāi)啟與關(guān)閉的一種閥。 </p> <p> 閥門(mén)可用于控制空氣、水、蒸汽、各種腐蝕性介質(zhì)、泥漿、油品、液態(tài)金屬和放射性介質(zhì)等各種類型流體的流動(dòng)。在管道上主要起切斷和節(jié)流作用。蝶閥啟閉件是一個(gè)圓盤(pán)形的蝶板，在閥體內(nèi)繞其自身的軸線旋轉(zhuǎn)，從而達(dá)到啟閉或調(diào)節(jié)的目的。 </p> <p> 蝶閥是用圓盤(pán)式啟閉件往復(fù)回轉(zhuǎn)90°左右來(lái)開(kāi)啟、關(guān)閉或調(diào)節(jié)介質(zhì)流量的一種閥門(mén)。蝶閥不僅結(jié)構(gòu)簡(jiǎn)單、體積小、重量輕、材料耗用省、安裝尺寸小、驅(qū)動(dòng)力矩小、操作簡(jiǎn)便、迅速，并且還可以同時(shí)具有良好的流量調(diào)節(jié)功能和關(guān)閉密封特性，是近十幾年來(lái)發(fā)展**快的閥門(mén)品種之一。蝶閥的使用非常很多。其使用的品種和數(shù)量仍在繼續(xù)擴(kuò)大，并向高溫、高壓、大口徑、高密封性、長(zhǎng)壽命、優(yōu)良的調(diào)節(jié)特性，以及一閥多功能發(fā)展。其可靠性及其他性能指標(biāo)均達(dá)到較高水平。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北煉鋼廠真空管道蝶閥重量" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737719785157/327671.jpg"></div><p> 2 國(guó)際上閥門(mén)密封等級(jí)分類標(biāo)準(zhǔn) </p> <p> <br /> </p> <p> 目前圍際上比較常用的閥門(mén)密封等級(jí)分類標(biāo)準(zhǔn)主要有以下。 </p> <p> <br /> </p> <p> 2．2 國(guó)際標(biāo)準(zhǔn)化組織對(duì)閥門(mén)密封等級(jí)的分類 </p> <p> <br /> </p> <p> 國(guó)際標(biāo)準(zhǔn)化組織標(biāo)準(zhǔn)ISO5208《工業(yè)閥門(mén)金屬閥門(mén)的壓力試驗(yàn)》。 </p> <p> <br /> </p> <p> 2．3 美國(guó)石油協(xié)會(huì)(APl)對(duì)閥門(mén)密封等級(jí)的分類美國(guó)石油協(xié)會(huì)標(biāo)準(zhǔn)API 598--2004《閥門(mén)的檢查和試驗(yàn)》。 </p> <p> <br /> </p> <p> 2．4 美國(guó)閥門(mén)和管件工業(yè)制造商標(biāo)準(zhǔn)化協(xié)會(huì)(MSS)對(duì)閥門(mén)密封等級(jí)的分類美國(guó)閥門(mén)和管件工業(yè)制造商標(biāo)準(zhǔn)化協(xié)會(huì)標(biāo)準(zhǔn)《鋼制閥門(mén)的壓力試驗(yàn)》MSS SP61允許的閥門(mén)泄漏量要求如下： </p> <p> <br /> </p> <p> (1)在閥門(mén)密封副中有一個(gè)密封面使用塑料或橡膠的情況下，在密封試驗(yàn)的持續(xù)時(shí)間內(nèi)應(yīng)無(wú)可見(jiàn)泄漏。 </p> <p> <br /> </p> <p> (2)關(guān)閉時(shí)每一側(cè)的比較大允許泄漏量應(yīng)是：液體為公稱尺寸(DN)每毫米、每小時(shí)0．4毫升；氣體為公稱尺寸(DN)每毫米、每小時(shí)120毫升。 </p> <p> <br /> </p> <p> (3)止回閥允許的泄漏量可增大4倍。 </p> <p> <br /> </p> <p> 2．5 美國(guó)國(guó)家標(biāo)準(zhǔn)／美國(guó)儀表協(xié)會(huì)標(biāo)準(zhǔn)(ANSI／FCI)對(duì)控制閥密封等級(jí)的分類 </p> <p> <br /> </p> <p> 美國(guó)國(guó)家標(biāo)彬美國(guó)儀表協(xié)會(huì)標(biāo)準(zhǔn)ANSI／FCI70-2(ASME B16．104)《控制閥閥座泄漏》。 </p> <p> <br /> </p> <p> 2．6 歐盟標(biāo)準(zhǔn)對(duì)閥門(mén)密封等級(jí)的分類 </p> <p> <br /> </p> <p> 歐洲標(biāo)準(zhǔn)EN 12266—1《工業(yè)閥門(mén)閥門(mén)的試驗(yàn)》第l部分。壓力試驗(yàn)、試驗(yàn)方法和驗(yàn)收標(biāo)準(zhǔn)-強(qiáng)制性要求。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北煉鋼廠真空管道蝶閥重量" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494296875/9390800.png"></div></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/33851.html</p></div></div></div></div></div><div id="wg77tld" class="page-right twoColRt"><div id="vf84ubn" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="qqqx8uw" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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