福建FSA真空管道蝶閥泄露頂耕國(guó)際貿(mào)易供應(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="安裝要求1、安裝位置、高度、進(jìn)出口方向必須符合設(shè)計(jì)要求，連接應(yīng)牢固緊密。2、安裝在保溫管道上的各類(lèi)手動(dòng)閥門(mén)，手柄均不得向下。3、閥門(mén)安裝前必須進(jìn)行外觀檢查，閥門(mén)的銘牌應(yīng)符合現(xiàn)行國(guó)家標(biāo)準(zhǔn)《通用閥門(mén)標(biāo)志》GB12220的規(guī)定。對(duì)于工作壓力大于1"><meta name="keywords" content="福建FSA真空管道蝶閥泄露"><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" 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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>福建FSA真空管道蝶閥泄露</p><p><span>***更新：</span>2020-05-24 07:27:14</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="pfd7dlr" 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="xnd7t9l" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="vd75bxv" class="box"><p><p> 安裝要求 </p> <p> 1、安裝位置、高度、進(jìn)出口方向必須符合設(shè)計(jì)要求，連接應(yīng)牢固緊密。 </p> <p> 2、安裝在保溫管道上的各類(lèi)手動(dòng)閥門(mén)，手柄均不得向下。 </p> <p> 3、閥門(mén)安裝前必須進(jìn)行外觀檢查，閥門(mén)的銘牌應(yīng)符合現(xiàn)行國(guó)家標(biāo)準(zhǔn)《通用閥門(mén)標(biāo)志》GB 12220的規(guī)定。對(duì)于工作壓力大于1.0 MPa 及在主干管上起到切斷作用的閥門(mén)，安裝前應(yīng)進(jìn)行強(qiáng)度和嚴(yán)密性能試驗(yàn)，合格后方準(zhǔn)使用。強(qiáng)度試驗(yàn)時(shí)，試驗(yàn)壓力為公稱(chēng)壓力的1.5倍，持續(xù)時(shí)間不少于5min，閥門(mén)殼體、填料應(yīng)無(wú)滲漏為合格。嚴(yán)密性試驗(yàn)時(shí)，試驗(yàn)壓力為公稱(chēng)壓力的1.1倍；試驗(yàn)壓力在試驗(yàn)持續(xù)的時(shí)間應(yīng)符合GB 50243標(biāo)準(zhǔn)要求，以閘板密封面無(wú)滲漏為合格。 </p> <p> 大口徑閘閥適用于 Class150 ～ 2500 、工作溫度 -29～425℃（碳鋼）或 -29～500℃（不銹鋼）的小口徑管路上，用于截?cái)嗷蚪油ü苈分械慕橘|(zhì)，選用不同的材質(zhì)，可分別適用于水、蒸汽、油品，福建FSA真空管道蝶閥泄露、硝酸，福建FSA真空管道蝶閥泄露，福建FSA真空管道蝶閥泄露、醋酸、氧化性介質(zhì)、尿素等多種介質(zhì)。在石油管道上應(yīng)用較多。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建FSA真空管道蝶閥泄露" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737890507813/9234469.jpg"></div><p> 常用的通徑單位有mm、寸、分，寸用”表示一、1寸=二、寸是公稱(chēng)直徑的英制叫法，mm是國(guó)標(biāo)公制叫法三、在管道的規(guī)格上沒(méi)有***的換算公式，對(duì)于小于100只能以1寸=25來(lái)模糊計(jì)算，取其相近的數(shù)，對(duì)于大于100的管子用1寸=25可以完全匹配計(jì)算。深圳名閥常用的如下：公稱(chēng)直徑DN6對(duì)應(yīng)的俗稱(chēng)1分1/8寸公稱(chēng)直徑DN8對(duì)應(yīng)的俗稱(chēng)2分1/4寸公稱(chēng)直徑DN10對(duì)應(yīng)的俗稱(chēng)3分3/8寸公稱(chēng)直徑DN15對(duì)應(yīng)的俗稱(chēng)4分1/2寸公稱(chēng)直徑DN20對(duì)應(yīng)的俗稱(chēng)6分3/4寸公稱(chēng)直徑DN25對(duì)應(yīng)的俗稱(chēng)1寸公稱(chēng)直徑DN32對(duì)應(yīng)的俗稱(chēng)1寸2分11/4”公稱(chēng)直徑DN40對(duì)應(yīng)的俗稱(chēng)1寸半11/2”公稱(chēng)直徑DN50對(duì)應(yīng)的俗稱(chēng)2寸公稱(chēng)直徑DN65對(duì)應(yīng)的俗稱(chēng)2寸半公稱(chēng)直徑DN80對(duì)應(yīng)的俗稱(chēng)3寸公稱(chēng)直徑DN100對(duì)應(yīng)的俗稱(chēng)4寸公稱(chēng)直徑DN125對(duì)應(yīng)的俗稱(chēng)5寸公稱(chēng)直徑DN150對(duì)應(yīng)的俗稱(chēng)6寸公稱(chēng)直徑DN200對(duì)應(yīng)的俗稱(chēng)8寸以此類(lèi)推。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建FSA真空管道蝶閥泄露" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129749325380860/6768130.png"></div><p> 金屬硬密封蝶閥作為一種用來(lái)實(shí)現(xiàn)管路系統(tǒng)通斷及流量控制的部件，已在石油、化工、冶金、水電等許多領(lǐng)域中得到極為很多地應(yīng)用。在已公知的蝶閥技術(shù)中，其密封形式多采用密封結(jié)構(gòu)，密封材料為橡膠、聚四氟乙烯等。由于結(jié)構(gòu)特征的限制，不適應(yīng)耐高溫、高壓及耐腐蝕、抗磨損等行業(yè)?，F(xiàn)有一種比較先進(jìn)的蝶閥是三偏心金屬硬密封蝶閥，閥體和閥座為連體構(gòu)件，閥座密封表面層堆焊耐溫、耐蝕合金材料。多層軟疊式密封圈固定在閥板上，這種蝶閥與傳統(tǒng)蝶閥相比具有耐高溫，操作輕便，啟閉無(wú)磨擦，關(guān)閉時(shí)隨著傳動(dòng)機(jī)構(gòu)的力矩增大來(lái)補(bǔ)償密封，提高了蝶閥的密封性能及延長(zhǎng)使用壽命的優(yōu)點(diǎn)。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建FSA真空管道蝶閥泄露" src="https://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737493554688/8379117.png"></div></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/24802.html</p></div></div></div></div></div><div id="rx9xnt9" class="page-right twoColRt"><div id="xlb7fdt" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="7jfvbpv" 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