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class="proBig"><div id="2oauy3j" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shzpzkgs/637364817499316407/6029396.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="yipmov4" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shzpzkgs/637364817499316407/6029396.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="tspm7yv" 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)品關鍵詞：</span>GD-J型手動高真空擋板閥供貨商,真空閥門</p><p><span>***更新：</span>2020-11-11 04:20:35</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="jdas888" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海卓帕真空技術有限公司</a></p><p><span>聯(lián)系人：</span>范裕軍</p><p><span>郵箱: </span>469585075@qq.com</p><p><span>電話: </span>17317798775</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.zapavac.cn</p><p><span>手機: </span>021-52999935</p><p><span>地址: </span>曹楊路1017號一幢三樓3193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="nwdfu8w" class="page-proshow02"><p class="title">詳細說明</p><div id="lvnkczd" class="box"><p><p style="text-indent:25px">氣動高真空擋板閥是一款適用的工作介質(zhì)為空氣及非腐蝕性氣性的擋板閥。GDQ-J系列氣動高真擋板閥在真空系統(tǒng)中作切斷或接通氣流之用。該閥以壓縮空氣為動力，GD-J型手動高真空擋板閥供貨商，通過控制氣動元件來改變氣路方向，執(zhí)行的氣缸驅(qū)動使擋板閥做啟閉運動。隨著我國經(jīng)濟的發(fā)展，各個企業(yè)之間的競爭也慢慢的加劇，GD-J型手動高真空擋板閥供貨商，特別是一些同行業(yè)的。比如說電動閥門行業(yè)，該產(chǎn)業(yè)主要是以中小型企業(yè)為主，其中不乏一些大企業(yè)做**，于是乎，就出現(xiàn)了人家生產(chǎn)什么，他們就生產(chǎn)什么，GD-J型手動高真空擋板閥供貨商。有的電動閥門企業(yè)甚至打價格戰(zhàn)，故意拉低價格讓整個行業(yè)的利潤下降，行為非常惡劣。當然我國電動閥門競爭激烈，品質(zhì)較差是有多方面的原因的，這其中產(chǎn)量過剩是很大的一個原因。真空閥門行業(yè)一般是屬于勞動密集型行業(yè)，針對于這點，一些閥門企業(yè)務必要轉向技術密集行業(yè)，這有這樣才有提高的空間，才能穩(wěn)定的發(fā)展。如果真空閥門系機械待動，要按時對變速箱添加潤滑油。GD-J型手動高真空擋板閥供貨商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="GD-J型手動高真空擋板閥供貨商,真空閥門" src="https://tyunfile.71360.com/UploadFile/shzpzkgs/637364817499316407/6029396.png"></div><p style="text-indent:25px">真空閥門閥體和閥蓋的泄漏原由原因：1、鑄鐵件鑄造質(zhì)量不高，閥體和閥蓋體上有砂眼、松懈安排、夾渣等缺點；2、天冷凍裂；3、焊接不良，存在著夾渣、未焊接，應力裂紋等缺點；　4、鑄鐵閥門被重物碰擊后損壞。維護辦法：1、進步鑄造質(zhì)量，裝置前嚴厲按規(guī)則進行強度實驗；2、對氣溫在0℃和0℃以下的閥門，應進行保溫或拌熱，停止使用的閥門應排除積水；3、由焊接組成的閥體和閥蓋的焊縫，應按有關焊接操作規(guī)程進行，焊后還應進行探傷和強度實驗；4、閥門上制止推放重物，不允許用手錘碰擊鑄鐵和非金屬閥門，大口徑閥門的裝置應有支架。電動高真空閥門多少錢真空閥門是真空系統(tǒng)中用以調(diào)節(jié)氣流量、切斷或接通管路的元件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="GD-J型手動高真空擋板閥供貨商,真空閥門" src="https://tyunfile.71360.com/UploadFile/shzpzkgs/637364816837548829/9997936.png"></div><p style="text-indent:25px">真空閥門的檢修檢修時的要點查看部位:①閥體內(nèi)壁。對使用于高壓差及有腐蝕性介質(zhì)場合的閥體內(nèi)壁易受介質(zhì)沖擊和腐蝕，查看耐壓、耐腐蝕的狀況。② 閥座。查看閥座的磨損清況以及固定閥座用的螺紋內(nèi)外表，是否因受腐蝕而使閥座松馳。氣動薄膜調(diào)節(jié)閥的檢修檢修時的要點查看部位。③ 閥芯。閥芯是調(diào)節(jié)閥作業(yè)時的可動部件，受介質(zhì)沖蝕嚴峻，檢修時要認真查看閥芯各部是否被腐蝕、磨損，特別是在高壓差的狀況下，閥芯的磨損因空化引起的汽蝕現(xiàn)象更為嚴峻。損壞嚴峻的閥芯應予更換。④ 膜片及“0”形密封圈。查看橡膠薄膜是否有老化和龜裂等狀況。⑤ 填料。查看填料配合狀況，填料是否老化、干燥。</p><p style="text-indent:25px">真空閥門的連接處的滲漏檢查：1 .密封填料函及其他連接處的滲漏檢查；將溫度為室溫的水，以調(diào)節(jié)閥公稱壓力的1.1倍或大操作壓力的1.5倍的壓力，按打開閥芯的方向通入調(diào)節(jié)閥的一端，另一端封閉。保持壓力10分鐘，同時閥桿每分鐘作1～3 次往返移動。密封填料函及其他部件連接處不應有滲漏現(xiàn)象。2 .關閉時的泄漏檢查：① 注水法泄漏檢查，對于雙座調(diào)節(jié)閥一般可用簡易的注水法檢查泄漏情況。向薄膜氣室輸入信號壓力使調(diào)節(jié)閥關閉。向調(diào)節(jié)閥進口處注入溫度為室溫的水，在不加壓的情況下另一端應無明顯滴漏現(xiàn)象。② 水壓法泄漏量檢查：向薄膜氣室輸入信號壓力使閥關閉。將溫度為室溫的水，以10kg/cm2恒定壓力按打開閥芯的方向通入調(diào)節(jié)閥的一端，用秒表和量杯在另一端測量其泄漏量不應超過允許值。真空閥門是在真空系統(tǒng)中用來隔離（切斷）氣流、調(diào)節(jié)氣流流量、分配氣流的真空元件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="GD-J型手動高真空擋板閥供貨商,真空閥門" src="https://tyunfile.71360.com/UploadFile/shzpzkgs/637364817184853516/2772865.png"></div><p style="text-indent:25px">如何正確地選用各種真空閥門？截止閥的介紹及選型：截止閥的閥桿軸線與閥座密封面垂直。閥桿開啟或關閉行程相對較短，并具有非?？煽康那袛鄤幼?，使得這種閥門非常適合作為介質(zhì)的切斷或調(diào)節(jié)及節(jié)流使用。截止閥的閥瓣一旦處于開啟狀況，它的閥座和閥瓣密封面之間就不再的接觸，并具有非?？煽康那袛鄤幼鳎系眠@種閥門非常適合作為介質(zhì)的切斷或調(diào)節(jié)及節(jié)流使用。截止閥一旦處于開啟狀態(tài)，它的閥座和閥瓣密封面之間就不再有接觸，因而它的密封面機械磨損較小，由于大部分截止閥的閥座和閥瓣比較容易修理或更換密封元件時無需把整個閥門從管線上拆下來，這對于閥門和管線焊接成一體的場合是很適用的。介質(zhì)通過此類閥門時的流動方向發(fā)生了變化，因此截止閥的流動阻力較高于其它閥門。真空閥門的焊縫真空密封性要達到答應的氣體密封性能(或漏氣率)的要求。GD-J型手動高真空擋板閥供貨商</p><p style="text-indent:25px">檢查氣動高真空擋板閥表面是否完整無損，氣缸是否完好無損無裂痕，并查看電磁閥電壓是否和訂貨時電壓一致。GD-J型手動高真空擋板閥供貨商</p><p style="text-indent:25px">真空閥門的密封性能是指閥門各密封部位阻止介質(zhì)泄漏的能力，它是閥門比較重要的技術性能指標。真空閥門的密封部位有三處：啟閉件與閥座兩密封面間的接觸處；填料與閥桿和填料函的配和處；閥體與閥蓋的連接處。其中前一處的泄漏叫做內(nèi)漏，也就是通常所說的關不嚴，它將影響閥門截斷介質(zhì)的能力。對于截斷閥類來說，內(nèi)漏是不允許的。后兩處的泄漏叫做外漏，即介質(zhì)從閥內(nèi)泄漏到閥外。外漏會造成物料損失，污染環(huán)境，嚴重時還會造成事故。對于易燃易爆、有毒或有放射的介質(zhì)，外漏更是不能允許的，因而真空閥門必須具有可靠的密封性能。GD-J型手動高真空擋板閥供貨商</p><p style="text-indent:25px">上海卓帕真空技術有限公司致力于機械及行業(yè)設備，以科技創(chuàng)新實現(xiàn)***管理的追求。卓帕真空深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的真空泵，分子泵，羅茨泵，凍干泵。卓帕真空繼續(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，又要聚焦關鍵領域，實現(xiàn)轉型再突破。卓帕真空始終關注自身，在風云變化的時代，對自身的建設毫不懈怠，高度的專注與執(zhí)著使卓帕真空在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1939278.html</p></div></div></div></div></div><div id="scjlsuo" class="page-right twoColRt"><div id="fpcz3qs" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8t8i87n" 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" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="pzw7k98" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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