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<meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u 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href="http://www.cdcfah.com/cp/first-_huagong/">化工</a>?<a href="http://www.cdcfah.com/cp/second-huagong_famenmp/">閥門</a>?<a href="http://www.cdcfah.com/cp/third-famenmp_fatinw/">閥體</a>?江蘇泵保護閥批發(fā)報價鑄造輝煌上海大田閥門管道工程供應</p><div id="bptpv7t" class="leftbox clearfix"><h1>江蘇泵保護閥批發(fā)報價鑄造輝煌上海大田閥門管道工程供應</h1><div id="djpvt3v" class="proBig"><div id="vbhfbfd" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdatian/637343242258173828/6951216.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="thxl7tz" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdatian/637343242258173828/6951216.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="f5bpljx" 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>江蘇泵保護閥批發(fā)報價,自動再循環(huán)閥</p><p><span>***更新：</span>2020-09-22 12:25:08</p><p><span id="click" >瀏覽次數(shù)：6次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="3d5hd3b" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海大田閥門管道工程有限公司</a></p><p><span>聯(lián)系人：</span>余璐辰</p><p><span>郵箱: </span>business@dtjt.com</p><p><span>電話: </span>18621060309</p><p><span>傳真: </span>21_</p><p><span>網(wǎng)址: </span>https://www.dtjt.com</p><p><span>手機: </span>21-68106370</p><p><span>地址: </span>祝橋鎮(zhèn)工業(yè)城</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="dbzntrp" class="page-proshow02"><p class="title">詳細說明</p><div id="drp5h3j" class="box"><p><p style="text-indent:25px">通過自動再循環(huán)閥的壓力降相對較小。升降式自動再循環(huán)閥的閥瓣坐落位于閥體上閥座密封面上。此閥門除了閥瓣可以自由地升降之外，其余部分如同自動再循環(huán)閥一樣，江蘇泵保護閥批發(fā)報價，流體壓力使閥瓣從閥座密封面上抬起，江蘇泵保護閥批發(fā)報價，介質(zhì)回流導致閥瓣回落到閥座上，并切斷流動。根據(jù)使用條件，江蘇泵保護閥批發(fā)報價，閥瓣可以是全金屬結(jié)構(gòu)，也可以是在閥瓣架上鑲嵌橡膠墊或橡膠環(huán)的形式。像自動再循環(huán)閥一樣，流體通過升降式自動再循環(huán)閥的通道也是狹窄的，因此通過升降式自動再循環(huán)閥的壓力降比旋啟式自動再循環(huán)閥大些，而且旋啟式自動再循環(huán)閥的流量受到的限制很少。自動再循環(huán)閥的構(gòu)造類型很多，以往常見的有薄膜式、內(nèi)彈簧活塞式等。江蘇泵保護閥批發(fā)報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇泵保護閥批發(fā)報價,自動再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343242258173828/6951216.png"></div><p style="text-indent:25px">自動再循環(huán)閥旁路止回功能，自動再循環(huán)閥廠家可以為旁路提供止回功能但會增加成本，因此需核算是自動再循環(huán)閥內(nèi)置止回閥還是旁路管線單獨安裝止回閥。自動再循環(huán)閥材質(zhì)，閥門材質(zhì)原則上不能低于泵出口管等級要求的材質(zhì)，對輸送腐蝕性物料的情況，還需廠家對閥門內(nèi)件做相應處理。自動循環(huán)閥是自行的，不需要人工操作。自動再循環(huán)閥又稱自動再循環(huán)閥或小流量閥，用于離心泵小流量的自動再循環(huán)，防止離心泵在低負載下由于過熱，噪音、振動帶來的損壞。上海流量閥價格自動再循環(huán)閥按閥瓣的位置不同可分為正作用式和反作用式。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇泵保護閥批發(fā)報價,自動再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343240914384765/2642701.png"></div><p style="text-indent:25px">自動再循環(huán)閥是一種依靠介質(zhì)本身的流動而自動啟閉閥瓣用來阻止介質(zhì)逆向流動的自動閥門。產(chǎn)品連接件少,整體鋼性好.截流速度快、開度限位機構(gòu)方便,靈活, 精確。自動再循環(huán)閥安裝在管路系統(tǒng)，其主要作用是防止介質(zhì)倒流,自動再循環(huán)閥是-種依靠介質(zhì)壓力開啟和關(guān)閉的自動閥門。自動再循環(huán)閥在水泵供水系統(tǒng)中的作用是防止高壓水回流對水泵葉輪的沖擊。系統(tǒng)在運行中由于某種原因,水泵突然停止運轉(zhuǎn)時,泵內(nèi)壓力消失,與水泵出口相連的高壓水就會反向流回水泵。</p><p style="text-indent:25px">自動再循環(huán)閥升降式水平瓣自動再循環(huán)閥應安裝在水平管道上。自動再循環(huán)閥有-個介鉸鏈機構(gòu)，還有一個像i ]-樣的閥瓣自由地靠在傾斜地閥座表面上。為了確保閥辦每次，都能到達閥座面地合適位置，閥瓣設置在鉸鏈機構(gòu)，以便閥瓣具有，足夠旋啟空間，并使閥瓣真正地、詳細的與閥座接觸。閥瓣可以全部用金屬制成，也可以在金屬上鑲嵌皮革、橡膠、或者采用合成覆蓋面，這取決于適用性能的要求。旋啟式自動再循環(huán)閥在完全打開的狀況***體壓力幾乎不受阻礙，因此通過閥的壓力降將對較小。自動再循環(huán)閥可實現(xiàn)遠距離控制和自動化操作。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇泵保護閥批發(fā)報價,自動再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343241812021484/6437117.png"></div><p style="text-indent:25px">自動再循環(huán)閥特點：自動再循環(huán)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。自動再循環(huán)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。蝶板的流線型設計，使流體阻力損失小，可謂是一種節(jié)能型產(chǎn)品。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。自動再循環(huán)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計，以免在閥桿與蝶板連接處意外斷裂時閥桿崩出。自動再循環(huán)閥的碟板裝置配套法蘭主張采用碟閥**法蘭。浙江泵保護閥廠家</p><p style="text-indent:25px">自動再循環(huán)閥可將閥前管路較高的水壓減少至閥后管路所需的水平。江蘇泵保護閥批發(fā)報價</p><p style="text-indent:25px">自動再循環(huán)閥閥門類型確定，閥門類型主要依照旁路壓差確定，同時要核算主路壓降，因此需詳細核算旁路壓降。旁路壓降為泵小連續(xù)流量下的出口壓力減去自動再循環(huán)閥旁路出口的背壓。泵小連續(xù)流量下的出口壓力通過查泵廠家提供的性能曲線上的小連續(xù)流量下的揚程，然后折算為壓差再加上泵的入口壓力獲得。自動再循環(huán)閥旁路出口的背壓 =返回罐的操作壓力 +自動再循環(huán)閥旁路出口與返回罐的位差折算的壓力 +旁路回流管線的壓力損失 +適當余量。江蘇泵保護閥批發(fā)報價</p><p style="text-indent:25px">上海大田閥門管道工程有限公司總部位于祝橋鎮(zhèn)工業(yè)城，是一家公司現(xiàn)在生產(chǎn)的產(chǎn)品有調(diào)節(jié)閥及附件、通用閥門、減溫減壓裝置、自動再循環(huán)控制閥、電磁閥、API6A閥門等。調(diào)節(jié)閥及附件包含有：氣動調(diào)節(jié)閥、電動調(diào)節(jié)閥、自力式調(diào)節(jié)閥、手動調(diào)節(jié)閥、氣動薄膜執(zhí)行機構(gòu)、電動執(zhí)行機構(gòu)、電氣閥門定位器、電動閥門調(diào)節(jié)模塊等。通用閥門包含有：閘閥、截止閥、球閥、蝶閥、止回閥、水力控制閥、柱塞閥、旋塞閥、隔膜閥、安全閥、減壓閥、疏水閥、排氣閥、平衡閥、針型閥及多種襯里閥門等。減溫減壓裝置分為低壓、中壓、次高壓、高壓四種規(guī)格。自動再循環(huán)控制閥分為低壓、中壓、高壓三種規(guī)格。電磁閥包含有：水用電磁閥、蒸汽電磁閥、煤氣電磁閥、空氣電磁閥、真空電磁閥、高溫電磁閥等。API6A閥門包含有閘閥、節(jié)流閥等。同時，公司可按照客戶的要求進行非標產(chǎn)品的設計、制造、加工。的公司。大田閥門深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的調(diào)節(jié)閥，自動再循環(huán)閥，減溫減壓裝置，閘閥。大田閥門繼續(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。大田閥門創(chuàng)始人余承善，始終關(guān)注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1381513.html</p></div></div></div></div></div><div id="hflz5hv" class="page-right twoColRt"><div id="ftr33z5" class="box01 margin10 clearfix"><h3><a 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