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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ycoqfce" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737896542969/9655723.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="onpbtax" 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>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>湖北鋼廠真空管道蝶閥密封,真空管道蝶閥</p><p><span>***更新：</span>2020-10-24 19:27:58</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="vkm84cl" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">頂耕國際貿(mào)易（上海）有限公司</a></p><p><span>聯(lián)系人：</span>查劍來</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: </span>021-61637356</p><p><span>地址: </span>大葉公路5225號1幢2370室</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="hwtvrjv" class="page-proshow02"><p class="title">詳細說明</p><div id="jyvhevx" class="box"><p><p> 閥門選型的要點 </p> <p> <br /> </p> <p> 1，湖北鋼廠真空管道蝶閥密封、明確閥門在設(shè)備或裝置中的用途 </p> <p> <br /> </p> <p> 確定閥門的工作條件：適用介質(zhì)的性質(zhì)、工作壓力、工作溫度和操縱控制方式等。 </p> <p> <br /> </p> <p> 2、正確選擇閥門的類型 </p> <p> <br /> </p> <p> 閥門型式的正確選擇是以設(shè)計者對整個生產(chǎn)工藝流程、操作工況的充分掌握為先決條件的，在選擇閥門類型時，設(shè)計人員應(yīng)首先掌握每種閥門的結(jié)構(gòu)特點和性能。 </p> <p> <br /> </p> <p> 3、確定閥門的端部連接 </p> <p> <br /> </p> <p> 在螺紋連接、法蘭連接、焊接端部連接中，前兩種**常用。螺紋連接的閥門主要是公稱通徑在50mm以下的閥門，如果通徑尺寸過大，連接部的安裝和密封十分困難。 </p> <p> <br /> </p> <p> 法蘭連接的閥門，其安裝和拆卸都比較方便，但是較螺紋連接的閥門笨重，價格較高，故它適用于各種通徑和壓力的管道連接。 </p> <p> <br /> </p> <p> 焊接連接適用于較荷刻的條件下，比法蘭連接更為可靠。但是焊接連接的閥門拆卸和重新安裝都比較困難，所以它的使用于通常能長期可靠地運行，或使用條件荷刻，湖北鋼廠真空管道蝶閥密封、溫度較高的場合。 </p> <p> <br /> </p> <p> 4、閥門材質(zhì)的選擇 </p> <p> <br /> </p> <p> 選擇閥門的殼體、內(nèi)件和密封面的材質(zhì)，除了考慮工作介質(zhì)的物理性能（溫度、壓力）和化學性能（腐蝕性）外，還應(yīng)掌握介質(zhì)的清潔程度（有無固體顆粒），除此之外，還要參照國家和使用部門的有關(guān)規(guī)定。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 主要產(chǎn)品有閘閥、截止閥、止回閥、球閥，湖北鋼廠真空管道蝶閥密封、蝶閥、全焊接球閥、真空閥、氣動閥門、電動閥門。湖北鋼廠真空管道蝶閥密封</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北鋼廠真空管道蝶閥密封,真空管道蝶閥" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737896542969/9655723.jpg"></div><p> 安裝要求 </p> <p> 1、安裝位置、高度、進出口方向必須符合設(shè)計要求，連接應(yīng)牢固緊密。 </p> <p> 2、安裝在保溫管道上的各類手動閥門，手柄均不得向下。 </p> <p> 3、閥門安裝前必須進行外觀檢查，閥門的銘牌應(yīng)符合現(xiàn)行國家標準《通用閥門標志》GB 12220的規(guī)定。對于工作壓力大于1.0 MPa 及在主干管上起到切斷作用的閥門，安裝前應(yīng)進行強度和嚴密性能試驗，合格后方準使用。強度試驗時，試驗壓力為公稱壓力的1.5倍，持續(xù)時間不少于5min，閥門殼體、填料應(yīng)無滲漏為合格。嚴密性試驗時，試驗壓力為公稱壓力的1.1倍；試驗壓力在試驗持續(xù)的時間應(yīng)符合GB 50243標準要求，以閘板密封面無滲漏為合格。 </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，用于截斷或接通管路中的介質(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。湖北專業(yè)真空管道蝶閥多少錢高真空蝶閥、高真空插板閥、真空調(diào)節(jié)閥、真空球閥、超高真空插板閥等.頂耕國際貿(mào)易有限公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北鋼廠真空管道蝶閥密封,真空管道蝶閥" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129749328144532/3165155.png"></div><p> 優(yōu)點 </p> <p> 1、啟閉方便迅速、省力、流體阻力小，可以經(jīng)常操作。 </p> <p> 2、結(jié)構(gòu)簡單，外形尺寸小，結(jié)構(gòu)長度短，體積小，重量輕，適用于大口徑的閥門。 </p> <p> 3、可以運送泥漿，在管道口積存液體**少。 </p> <p> 4、低壓下，可以實現(xiàn)良好的密封。 </p> <p> 5、調(diào)節(jié)性能好。 </p> <p> 6、全開時閥座通道有效流通面積較大，流體阻力較小。 </p> <p> 7、啟閉力矩較小，由于轉(zhuǎn)軸兩側(cè)蝶板受介質(zhì)作用基本相等，而產(chǎn)生轉(zhuǎn)矩的方向相反，因而啟閉較省力。 </p> <p> 8、密封面材料一般采用橡膠、塑料、故低壓密封性能好。 </p> <p> 9、安裝方便。 </p> <p> 10、操作靈活省力，可選擇手動、電動、氣動、液壓方式。 </p><p> 閥門密封是整個閥門中**重要的組成部分，其主要目的就是防止泄露，閥門密封座也叫密封圈，它是直接接與管路內(nèi)介質(zhì)接觸，并且阻止介質(zhì)流通的一個組織。閥門在使用中，管道內(nèi)有各種不同的介質(zhì)，如液體、氣體、油品、腐蝕性的介質(zhì)等等，而不同的閥門的密封件，使用的地方也不一樣，能夠適應(yīng)各種不同的介質(zhì)。那么，閥門密封件材料主要可以分成兩大類，即為金屬材料和非金屬材料，非金屬密封一般多用于常溫常壓的管道，而金屬密封而使用范圍則比較廣，可用于高溫高壓！下面就簡單介紹一下各類密封材料的使用條件，以及常用的閥門類型。1、合成橡膠合成橡膠的耐油、耐溫、耐腐蝕等綜合性能優(yōu)于天然橡膠。一般合成橡膠的使用溫度t≤150℃，天然橡膠t≤60℃，橡膠用于公稱壓力PN≤1MPa的截止閥、閘閥、隔膜閥、蝶閥、止回閥、夾管閥等閥門的密封。2、尼龍尼龍具有摩擦系數(shù)小、耐腐蝕性好等特點。尼龍多用于溫度t≤90℃、公稱壓力PN≤32MPa的球閥、截止閥等。3、聚四氟乙烯聚四氟乙烯多用于溫度t≤232℃、公稱壓力PN≤、閘閥、球閥等。4、鑄鐵鑄鐵用于溫度t≤100℃、公稱壓力PN≤、煤氣和油類用的閘閥、截止閥、旋塞閥等。5、巴氏合金巴氏合金用于溫度t-70~150℃、公稱壓力PN≤。頂耕國際貿(mào)易（上海）有限公司專業(yè)從事各類***真空閥門的研發(fā)、制造、銷售和服務(wù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北鋼廠真空管道蝶閥密封,真空管道蝶閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494296875/9390800.png"></div><p> 1、蝶閥具有結(jié)構(gòu)簡單、體積小、重量輕、材料耗用省，安裝尺寸小，開關(guān)迅速、90°往復(fù)回轉(zhuǎn)，驅(qū)動力矩小等特點，用于截斷、接通、調(diào)節(jié)管路中的介質(zhì)，具有良好的流體控制特性和關(guān)閉密封性能。 </p> <p> 2、蝶閥可以運送泥漿，在管道口積存液體**少。低壓下，可以實現(xiàn)良好的密封。調(diào)節(jié)性能好。 </p> <p> 3、蝶板的流線型設(shè)計，使流體阻力損失小，可謂是一種節(jié)能型產(chǎn)品。 </p> <p> 4、閥桿為通桿結(jié)構(gòu)，經(jīng)過調(diào)質(zhì)處理，有良好的綜合力學性能和抗腐蝕性，抗擦傷性。蝶閥啟閉時閥桿只作旋轉(zhuǎn)運動而不作升降運行，閥桿的填料不易破壞，密封可靠。與蝶板錐銷固定，外伸端為防沖出型設(shè)計，以免在閥桿與蝶板連接處意外斷裂時閥桿崩出。 </p> <p> 5、連接方式有法蘭連接、對夾連接、對焊連接及凸耳對夾連接。 </p> <p> 驅(qū)動形式有手動、蝸輪傳動、電動、氣動、液動、電液聯(lián)動等執(zhí)行機構(gòu)，可實現(xiàn)遠距離控制和自動化操作。頂耕國際貿(mào)易（上海）有限公司是德國AVOLA切磚機授權(quán)代理，產(chǎn)品可靠，歡迎咨詢！山西FSA真空管道蝶閥重量</p><p style="text-indent:25px">頂耕國際貿(mào)易（上海）有限公司誠信經(jīng)營，靈活服務(wù)，期待與您合作共贏！湖北鋼廠真空管道蝶閥密封</p><p> 1、配管上的法蘭面與配管中心線的垂直度及法蘭螺栓孔的誤差應(yīng)在允許值的范圍內(nèi)。閥門和配管中心線要取得一致后，在進行安裝。 2、在緊固螺栓時，要使用與螺母相匹配的扳手，當使用油壓，風動工具進行緊固時，注意不要超過規(guī)定的力矩。 3、連接兩個法蘭時，首先要使法蘭密封面與墊片均勻壓緊，由此保證靠同等的螺栓應(yīng)力對法蘭進行連接。 4、法蘭的緊固要避免用力不均，應(yīng)按照對稱、交義的方向順序旋緊。 5、法蘭安裝后，要確認所有的螺栓螺母的緊固均勻。 6、螺栓和螺母的緊固，為了防止震動造成的松動，要使用墊圈。為了避免高溫時螺紋間的粘連，安裝時螺紋部位應(yīng)涂防粘劑。 7、用于300℃以上的高溫閥門，在溫度上升后，必須對法蘭連接螺栓、閥蓋緊固螺栓、壓力密封以及填料壓蓋螺栓再次旋緊。 8、低溫用閥門時在安裝時是處于大氣溫度的狀態(tài)下，由于形成溫差，法蘭、墊片、螺栓以及螺母等發(fā)生收縮，又由于這些零部件的材質(zhì)不相同 9、各自的線膨脹系數(shù)也不同，形成了非常容易泄漏的環(huán)境條件。從這種客觀情況出發(fā)，在大氣溫度下緊固螺栓時，必須采用考慮了低溫時各零部件收縮因素的力矩。湖北鋼廠真空管道蝶閥密封</p><p style="text-indent:25px">頂耕國際貿(mào)易（上海）有限公司致力于機械及行業(yè)設(shè)備，以科技創(chuàng)新實現(xiàn)***管理的追求。頂耕貿(mào)易深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的振動給料機，電動缸，切磚機，真空主閥。頂耕貿(mào)易繼續(xù)堅定不移地走高質(zhì)量發(fā)展道路，既要實現(xiàn)基本面穩(wěn)定增長，又要聚焦關(guān)鍵領(lǐng)域，實現(xiàn)轉(zhuǎn)型再突破。頂耕貿(mào)易始終關(guān)注機械及行業(yè)設(shè)備行業(yè)。滿足市場需求，提高產(chǎn)品價值，是我們前行的力量。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1691984.html</p></div></div></div></div></div><div id="ixubi8i" class="page-right twoColRt"><div id="lur8zuw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="bvxzr2c" 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配件哪家強信息推薦自業(yè)物資供應(yīng)" 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