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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="aywmhhi" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/baomeng202/637336187111445312/7795891.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="zsyoj38" 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>福建省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>sun液壓閥,閥</p><p><span>***更新：</span>2020-12-08 01:03:22</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="q847fvl" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">廈門市冠來機電設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>趙先生</p><p><span>郵箱: </span>173913050@qq.com</p><p><span>電話: </span>13806058973</p><p><span>傳真: </span>0592_7267158</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0592-7267158</p><p><span>地址: </span>穆厝社120號A棟125單元</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="w2fwmcx" class="page-proshow02"><p class="title">詳細說明</p><div id="usyy3bc" class="box"><p><p style="text-indent:25px">柱塞閥是由閥體、閥蓋、閥桿、柱塞、孔架、密封環(huán)，sun液壓閥、手輪等零件組成，通過閥桿帶動柱塞在孔架中間上下往復(fù)運動來完成閥門的開啟與關(guān)閉功能。柱塞閥的關(guān)閉由一個不銹鋼柱塞、上下兩只富彈性密封圈及一個金屬隔框組成，sun液壓閥，sun液壓閥，密封效果由柱塞與密封圈緊密配合來達到，柱塞插在兩只密封圈中，密封面積遠大于普通截止閥；開關(guān)柱塞閥時，柱塞在密封圈中緩慢移動，接觸面幾乎不磨損，關(guān)閉時，柱塞插入下密封圈，截斷流道；開啟時，柱塞雖然脫離下密封圈，但仍藏在上密封圈內(nèi)，保持與外界隔離，不致發(fā)生泄漏。哪一種的閥門比較好？sun液壓閥</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="sun液壓閥,閥" src="https://tyunfile.71360.com/UploadFile/baomeng202/637336187111445312/7795891.png"></div><p style="text-indent:25px">節(jié)流閥是一種通過改變節(jié)流的截面或者節(jié)流的長度以控制流體的流量的閥門。在外形和結(jié)構(gòu)上都與截止閥非常相似，所不同的只是閥瓣的形狀和工作行程，因此，節(jié)流閥與截止閥的零部件通用程度很高。各種截斷閥都可以改變介質(zhì)通道截面積，因而在一定程度上也可以起到調(diào)節(jié)作用，但是它們的調(diào)節(jié)性能不好。這是因為它們的啟閉件和閥桿是活動連接的，在連接處有間隙，不便調(diào)節(jié);啟閉件的升降與通道面積的改變不成比例，因而不易做到準(zhǔn)確、連續(xù)調(diào)?節(jié);當(dāng)通道面積小而介質(zhì)流速很大時，會造成密封面的嚴(yán)重沖蝕，并引起閥瓣的振動。因而通常都采用專門結(jié)構(gòu)和啟閉件形狀的節(jié)流閥進行調(diào)節(jié)。美國阿斯卡防爆電磁閥不同類型的閥門用于不同的地方。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="sun液壓閥,閥" src="https://tyunfile.71360.com/UploadFile/baomeng202/637336189240722656/6544388.png"></div><p style="text-indent:25px">蝶閥結(jié)構(gòu)簡單、體積小、重量輕，只由少數(shù)幾個零件組成。而且只需旋轉(zhuǎn)90°即可快速啟閉，操作簡單，同時該閥門有著良好的流體控制特性。蝶閥處于完全開啟位置時，蝶板厚度是介質(zhì)流經(jīng)閥體時單一的阻力，所以通過該閥門所產(chǎn)生的壓力降很小，因此具有較好的流量控制特性。蝶閥有彈密封和金屬的密封兩種密封型式。彈性密封閥門，密封圈可以鑲嵌在閥體上或附在蝶板周邊。采用金屬密封的閥門一般比彈性密封的閥門壽命長，但很難做到完全密封。金屬密封能適應(yīng)較高的工作溫度，彈性密封則具有受溫度限制的缺點。</p><p style="text-indent:25px">球閥按結(jié)構(gòu)形式可分為浮動球球閥、固定球球閥、彈性球球閥； ①浮動球球閥：球閥的球體是浮動的，在介質(zhì)壓力作用下，球體能產(chǎn)生一定的位移并緊壓在出口端的密封面上，保證出口端密封。浮動球球閥的結(jié)構(gòu)簡單，密封性好，但球體承受工作介質(zhì)的載荷全部傳給了出口密封圈，因此要考慮密封圈材料能否經(jīng)受得住球體介質(zhì)的工作載荷。這種結(jié)構(gòu)，大范圍用于中低壓球閥。 ②固定球球閥:球閥的球體是固定的，受壓后不產(chǎn)生移動。固定球球閥都帶有浮動閥座，受介質(zhì)壓力后，閥座產(chǎn)生移動，使密封圈緊壓在球體上，以保證密封。通常在與球體的上、下軸上裝有軸承，操作扭距小，適用于高壓和大口徑的閥門。為了減少球閥的操作扭矩和增加密封的可靠程度，出現(xiàn)了油封球閥，密封面間壓注特制的潤滑油，以形成一層油膜，即增強了密封性，又減少了操作扭矩，更適用高壓大口徑的球閥。 ③彈性球球閥:球體和閥座密封圈都采用金屬材料制造，密封比壓很大，依靠介質(zhì)本身的壓力已達不到密封的要求，必須施加外力。這種閥門適用于高溫高壓介質(zhì)。彈性球體是在球體內(nèi)壁的下端開一條彈性槽，而獲得彈性。當(dāng)關(guān)閉通道時，用閥桿的楔形頭使球體漲開與閥座壓緊達到密封。閥門選擇什么材質(zhì)比較好？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="sun液壓閥,閥" src="https://tyunfile.71360.com/UploadFile/baomeng202/637336191018730469/6749861.png"></div><p style="text-indent:25px">節(jié)流閥能起到控制流體流量的作用，一般來說在節(jié)流閥的壓差一定時，開口的大小影響著液體流量的變化。簡單來說節(jié)流閥起到的主要作用有三點： 1、截流調(diào)速的作用：截流閥通過對節(jié)流截面或者是長度的控制來改變流量，這是節(jié)流閥起到的主要作用也是它的主要功能。 2、起到負載阻力的作用：節(jié)流閥還能起到一定程度上的負載作用，這只是節(jié)流閥具有的一部分功能，節(jié)流閥的主要作用仍然是節(jié)流調(diào)速。 3、壓力緩沖的作用：節(jié)流閥能對流體起到壓力緩沖的作用，當(dāng)流體經(jīng)過節(jié)流閥流入時，節(jié)流閥可以在一定程度上阻礙流體的運行從而減少沖擊力。閥門的型號那么多，該怎么選擇？美國阿斯卡防爆電磁閥</p><p style="text-indent:25px">閥門的工作原理是什么？sun液壓閥</p><p style="text-indent:25px">分溢流閥、減壓閥、順序閥這三種閥都是壓力控制閥，他們的工作原理基本相同，都是以壓力油的控制壓力來使閥口啟閉。不同點的是減壓閥主要是用來降低液壓系統(tǒng)某一分支油路的壓力，使分支壓力比主油路壓力低且穩(wěn)定，在調(diào)定壓力的范圍內(nèi)，減壓閥也像溢流閥那樣是關(guān)閉的。但是隨著系統(tǒng)壓力的升高當(dāng)達到減壓閥調(diào)定的壓力時，減壓閥打開，部分油液會經(jīng)過他返回油箱（此時有一定壓力的油回油箱，油箱的油溫會上升），這一支路的油壓是不會上升了。減壓閥起到對本支路的減壓與穩(wěn)壓作用。溢流閥則不同，它裝在泵的出口處會保證系統(tǒng)的整體壓力穩(wěn)定且不會超壓?？梢哉f溢流閥是被動工作，而減壓閥是主動工作。sun液壓閥</p><p style="text-indent:25px">廈門市冠來機電設(shè)備有限公司致力于機械及行業(yè)設(shè)備，是一家貿(mào)易型公司。公司業(yè)務(wù)涵蓋水泵，閥門，變頻器，流量計等，價格合理，品質(zhì)有保證。公司將不斷增強企業(yè)重點競爭力，努力學(xué)習(xí)行業(yè)知識，遵守行業(yè)規(guī)范，植根于機械及行業(yè)設(shè)備行業(yè)的發(fā)展。冠來機電立足于全國市場，依托強大的研發(fā)實力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br 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