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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="i80cuqe" 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>重慶專業(yè)真空管道蝶閥口徑</p><p><span>***更新：</span>2020-05-28 12:19:04</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="0q8kiqo" 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="msqouye" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="kqgeuiy" class="box"><p><p> 盤(pán)根應(yīng)逐圈安放壓緊，接頭應(yīng)成30℃或45℃；3、使用期過(guò)長(zhǎng)、老化、損壞的填料應(yīng)及時(shí)更換；4、閥桿彎曲、磨損后應(yīng)進(jìn)矯直、修復(fù)，對(duì)損壞嚴(yán)重的應(yīng)及時(shí)更換；5、填料應(yīng)按規(guī)定的圈數(shù)安裝，壓蓋應(yīng)對(duì)稱均勻地把緊，壓套應(yīng)有5mm以上的預(yù)緊間隙；6、損壞的壓蓋、螺栓及其他部件，應(yīng)及時(shí)修復(fù)或更換；7、應(yīng)遵守操作規(guī)程，除撞擊式手輪外，以勻速正常力量操作；8、應(yīng)均勻?qū)ΨQ擰緊壓蓋螺栓，壓蓋與閥桿間隙過(guò)小，應(yīng)適當(dāng)增大其間隙；壓蓋與閥桿間隙過(guò)大，應(yīng)予更換。密封面的泄露原因：1、密封面研磨不平，不能形成密合線；2、閥桿與關(guān)閉件的連接處頂心懸空，重慶專業(yè)真空管道蝶閥口徑、不正或磨損；3、閥桿彎曲或裝配不正，使關(guān)閉件歪斜或不逢中；4、密封面材質(zhì)量選用不當(dāng)或沒(méi)有按工況條件選用閥。維護(hù)方法：1、按工況條件正確選用顛墊片的材料和型式；2、精心調(diào)節(jié)，平穩(wěn)操作；3、應(yīng)均勻?qū)ΨQ地?cái)Q螺栓，必要時(shí)應(yīng)使用扭力扳手，預(yù)緊力應(yīng)符合要求，不可過(guò)大或小。法蘭和螺紋連接處應(yīng)有一定的預(yù)緊間隙；4、墊片裝配應(yīng)逢中對(duì)正，受力均勻，墊片不允許搭接和使用雙墊片；5、靜密封面腐蝕、損壞加工、加工質(zhì)量不高，應(yīng)進(jìn)行修理、研磨，進(jìn)行著色檢查，重慶專業(yè)真空管道蝶閥口徑，重慶專業(yè)真空管道蝶閥口徑，使靜密封面符合有關(guān)要求；6、安裝墊片時(shí)應(yīng)注意清潔，密封面應(yīng)用煤油清。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶專業(yè)真空管道蝶閥口徑" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494296875/3009218.png"></div><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、硝酸、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="重慶專業(yè)真空管道蝶閥口徑" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737896738282/5305453.jpg"></div><p> 墊片不應(yīng)落地。密封圈連結(jié)處的泄漏原因：1、密封圈輾壓不嚴(yán)；2、密封圈與本體焊接，堆焊質(zhì)量差；3、密封圈連接螺紋、螺釘、壓圈松動(dòng)；4、密封圈連接而被腐蝕。維護(hù)方法：1、密封輾壓處泄漏應(yīng)注膠粘劑再輾壓固定；2、密封圈應(yīng)按施焊規(guī)范重新不解之補(bǔ)焊。堆焊處無(wú)法補(bǔ)焊時(shí)應(yīng)***原堆焊和加工；3、卸下螺釘、壓圈清洗，更換損壞的部件，研磨密封與連接座密合面，重新裝配。對(duì)腐蝕損壞大較大的部件，可用焊接、粘接等方法修復(fù)；4、密封圈連接面被腐蝕，可用研磨，粘接等方法修復(fù)，無(wú)法修復(fù)時(shí)用應(yīng)更換密封圈。關(guān)閉件脫落產(chǎn)生泄漏原因：1、操作不良，使關(guān)閉件卡死或超過(guò)上死點(diǎn)，連接處損壞斷裂；2、關(guān)閉件連接不牢固，松勁而脫落；3、選用連接件材質(zhì)不對(duì)，經(jīng)不起介質(zhì)的腐蝕和機(jī)械的磨損。維護(hù)方法：1、正確操作，關(guān)閉閥門(mén)不能用力過(guò)大，開(kāi)啟閥門(mén)不能超過(guò)上死點(diǎn)，閥門(mén)全開(kāi)后，手輪應(yīng)倒轉(zhuǎn)少許；2、關(guān)閉件與閥桿連接應(yīng)牢固，螺紋連接處應(yīng)有止退件；3、關(guān)閉件與閥桿連接用的緊固件應(yīng)經(jīng)受住介質(zhì)的腐蝕，并有一定的機(jī)械強(qiáng)度和耐磨性能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶專業(yè)真空管道蝶閥口徑" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494189453/4103674.png"></div></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/68649.html</p></div></div></div></div></div><div id="emukiek" class="page-right twoColRt"><div id="ec8aqe0" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="so20mk8" 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="sokiwsi" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" alt="寧波寧海直接考A2有幾個(gè)科目真誠(chéng)推薦寧波助學(xué)商務(wù)信息咨詢供應(yīng)" class="vcenter" 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