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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ras3223" 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>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>numatics閥門,閥門</p><p><span>***更新：</span>2020-09-26 09:03:43</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="az8rskh" 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(jī)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(jī): </span>0592-7267158</p><p><span>地址: </span>穆厝社120號(hào)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="rqcrdpw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="8h28xtq" class="box"><p><p style="text-indent:25px">氣動(dòng)球閥分為一片式球閥，二片式球閥，三片式球閥。根本的區(qū)別在閥體結(jié)構(gòu)上； ①一片式球閥是由一體式由球，四氟圈，鎖緊螺母組成，一個(gè)塞頭將球體固定，體積小，密封可靠，結(jié)構(gòu)簡(jiǎn)單，維修方便。一片式的是縮徑的，實(shí)際流通口徑要比螺紋口徑小一些。 ②二片式球閥是由兩片閥體夾住球體固定的，密封效果比一片式球閥好，維修相對(duì)復(fù)雜，中間的螺栓松緊度很關(guān)鍵，numatics閥門，numatics閥門，關(guān)系到是否泄漏。二片式球閥不適用于高壓，numatics閥門。 ③三片式球閥跟二片式球閥類似，但球體中間多了一個(gè)閥體，再由兩邊帶頸法蘭夾住。不同于二片式球閥和一片式球閥的地方三片球閥易拆卸維修方便。numatics閥門</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="numatics閥門,閥門" src="http://tyunfile.71360.com/UpLoadFile/2019/7/2/14/636976730599993757_baomeng202_6578569.jpg"></div><p style="text-indent:25px">截止閥是指關(guān)閉件（閥瓣）沿閥座中心線移動(dòng)的閥門。根據(jù)閥瓣的這種移動(dòng)形式，閥座通口的變化是與閥瓣行程成正比例關(guān)系。由于該類閥門的閥桿開啟或關(guān)閉行程相對(duì)較短，而且具有非?？煽康那袛喙δ?，又由于閥座通口的變化與閥瓣的行程成正比例關(guān)系，非常適合于對(duì)流量的調(diào)節(jié)。因此，這種類型的閥門非常適合作為切斷或調(diào)節(jié)以及節(jié)流使用,同樣氣動(dòng)球閥也適用。什么情況下適合選用截止閥呢： 1、高溫、高壓介質(zhì)的管路或裝置上宜選用截止閥。如火電廠、核電站，石油化工系統(tǒng)的高溫、高壓管路上。 2、管路上對(duì)流阻要求不嚴(yán)的管路上。即對(duì)壓力損失考慮不大的地方。 3、有流量調(diào)節(jié)或壓力調(diào)節(jié)，但對(duì)調(diào)節(jié)精度要求不高，而且管路直徑又比較小，如公稱通經(jīng)≤50mm 的管路上，宜選用。 4、氧化鋁拜耳法生產(chǎn)中的脫硅車間、易結(jié)焦的管路上，易選用閥體分開式、閥座可去處的、硬質(zhì)合金密封副的直流式截止閥或直流式節(jié)流閥。 5、城市建設(shè)中的供水、供熱工程上，公稱通經(jīng)較小的管路，可選用截止、平衡閥或柱塞閥，如公稱通經(jīng)小于150mm的管路上。numatics閥門</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="numatics閥門,閥門" src="http://tyunfile.71360.com/UpLoadFile/2019/7/2/14/636976730600305603_baomeng202_4579022.jpg"></div><p style="text-indent:25px">球閥按結(jié)構(gòu)形式可分為浮動(dòng)球球閥、固定球球閥、彈性球球閥； ①浮動(dòng)球球閥：球閥的球體是浮動(dòng)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(dòng)球球閥的結(jié)構(gòu)簡(jiǎn)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(dòng)。固定球球閥都帶有浮動(dòng)閥座，受介質(zhì)壓力后，閥座產(chǎn)生移動(dòng)，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(rùn)滑油，以形成一層油膜，即增強(qiáng)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(dá)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(shí)，用閥桿的楔形頭使球體漲開與閥座壓緊達(dá)到密封。</p><p style="text-indent:25px">閘閥是一種較為常見的啟閉閥，利用閘板(即啟閉件，在閘板中啟閉件稱為閘板或閘門，閘座稱為閘板座)來接通(全開)或截?cái)?全關(guān))管路中的介質(zhì)。它不允許作為截流用，使用中應(yīng)避免將閘板微量開啟，因高速流動(dòng)的介質(zhì)的沖蝕會(huì)加速密封面的損壞。閘板在垂直于閘門座通道中心線的片面作為升降運(yùn)動(dòng)，像閘門一樣截?cái)喙苈分械慕橘|(zhì)，故稱做閘閥。閘閥屬于直行程閥門，即閥桿帶動(dòng)閥板做上下垂直運(yùn)動(dòng)，完成閘閥的啟閉所以閘閥的流阻小，但是因其開啟高度較高，故啟閉速度較慢。閘閥流阻小，密封性能好，因閘閥閥板和介質(zhì)流向是垂直角度，如果閘閥在閥板開關(guān)不到位，介質(zhì)對(duì)閥板的沖刷使閥板顫動(dòng)，極易照成閘閥密封損壞。所以多用于要求密封嚴(yán)格并且不需要頻繁啟閉的管道做截止用，而不適合做調(diào)節(jié)管道介質(zhì)參數(shù)的作用。閘閥使用工況范圍很廣，在高溫、低溫、高壓、低壓等工況都可以使用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="numatics閥門,閥門" src="http://tyunfile.71360.com/UpLoadFile/2019/7/2/14/636976730607945830_baomeng202_6889391.jpg"></div><p style="text-indent:25px">隨著市場(chǎng)上對(duì)于氣動(dòng)蝶閥越來越高的使用率，已經(jīng)促進(jìn)了它慢慢成為人們非常實(shí)用的一種工具了。對(duì)于氣動(dòng)蝶閥的定時(shí)清潔與保養(yǎng)就顯得尤為重要了。氣動(dòng)蝶閥的保養(yǎng)維護(hù)的方法： 1、安裝前，必須仔細(xì)核對(duì)本閥標(biāo)志的壓力，通徑是否符合使用要求，避免運(yùn)輸過程所造成的損傷，并去除閥件的污垢。 2、安裝時(shí)，可將閥門按連接方式直接裝置在管路上。一般情況下，可安裝在管路任意位置上，但需便于操作的檢修，注意截止閥介質(zhì)流向應(yīng)是縱閥瓣下面往上流，升降式止回閥只能水平安裝。 3、填料壓蓋的螺栓應(yīng)均勻地?cái)Q緊，不應(yīng)壓成歪狀態(tài)，以免碰傷阻礙閥桿運(yùn)動(dòng)或造成泄漏。 4、氣動(dòng)蝶閥使用時(shí)，只作全開或全閉，不允許做調(diào)節(jié)流量用，以免密封面受沖蝕，加速磨損。閘閥和上螺紋截止閥內(nèi)有倒密封裝置，手輪旋至頂上位置擰緊，即可阻止介質(zhì)從填料處泄漏。 5、氣動(dòng)蝶閥開、關(guān)時(shí)應(yīng)用手輪，請(qǐng)勿借助杠桿或其它工具，以免損壞閥件。手輪順時(shí)針旋轉(zhuǎn)為關(guān)閉，反之為開啟。 6、長(zhǎng)期存放的閥門，應(yīng)作定期檢查，對(duì)外露的加工表面須保持清潔，去除污垢，存放時(shí)球閥應(yīng)兩端堵塞并處于開啟狀態(tài)，氣動(dòng)蝶閥，通道的兩端應(yīng)堵塞并處于關(guān)閉狀態(tài)，整齊地存放在室內(nèi)通風(fēng)干燥的地方，嚴(yán)禁堆置或露天存放。numatics閥門</p><p style="text-indent:25px">numatics閥門</p><p style="text-indent:25px">蝶閥的種類很多,根據(jù)其結(jié)構(gòu)特點(diǎn)和用途,一般可以分為以下兩大類： 1.密封型蝶閥這種蝶閥在關(guān)閉時(shí)能夠保證完全密封,在管道上可以作為切斷用,密封圈通常采用橡膠或塑料制成。但是,目前國(guó)內(nèi)也有采用金屬材料制成的密封圈,稱為雙偏心或三偏心蝶閥,也能保證良好的密封性能。 2.非密封型蝶閥這種蝶閥在關(guān)閉狀態(tài)時(shí)不能保證完全密封,在管道上只能作為節(jié)流用。其密封副材料通常采用的是金屬。作為流量控制用的蝶閥,大多采用金屬密封副。蝶閥和管道連接的方式有對(duì)夾式、雙法蘭式和單法蘭式三種,但較為常用的是對(duì)夾式和雙法蘭式。對(duì)夾式是用雙頭螺栓將閥門連接在管道上的兩法蘭之間。閥體形式可以為單法蘭式、無法蘭式或U形截面式。numatics閥門</p><p style="text-indent:25px">廈門市冠來機(jī)電設(shè)備有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家貿(mào)易型公司。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下水泵，閥門，變頻器，流量計(jì)深受客戶的喜愛。公司從事機(jī)械及行業(yè)設(shè)備多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。冠來機(jī)電秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實(shí)”的經(jīng)營(yíng)理念，全力打造公司的重點(diǎn)競(jìng)爭(zhēng)力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1429086.html</p></div></div></div></div></div><div id="azwdvry" class="page-right twoColRt"><div id="xmjw3wd" 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