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class="pic"><img src="https://tyunfile.71360.com/UploadFile/wds2020/637316974320322265/1394298.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3bwolcz" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wds2020/637316974320322265/1394298.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="et7feld" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>絲扣式自動風(fēng)閥制造商,燃?xì)怆姶砰y</p><p><span>***更新：</span>2021-01-01 05:12:27</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="33wlnfm" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">中山市瓦達(dá)斯熱能設(shè)備技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>王小龍</p><p><span>郵箱: </span>857523811@qq.com</p><p><span>電話: </span>18576205579</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.gdwadasi.com</p><p><span>手機(jī): </span>0755-12345678</p><p><span>地址: </span>東鳳鎮(zhèn)民樂社區(qū)德友街8號二樓</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="7kldkhe" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="fu2pw34" class="box"><p><p style="text-indent:25px">先導(dǎo)式減壓閥當(dāng)減壓閥的輸出壓力較高或通徑較大時(shí)，用調(diào)壓彈簧直接調(diào)壓，絲扣式自動風(fēng)閥制造商，則彈簧剛度必然過大，絲扣式自動風(fēng)閥制造商，流量變化時(shí)，輸出壓力波動較大，閥的結(jié)構(gòu)尺寸也將增大。為了克服這些缺點(diǎn)，可采用先導(dǎo)式減壓閥。先導(dǎo)式減壓閥的工作原理與直動式的基本相同。先導(dǎo)式減壓閥所用的調(diào)壓氣體，是由小型的直動式減壓閥供給的。若把小型直動式減壓閥裝在閥體內(nèi)部，則稱為內(nèi)部先導(dǎo)式減壓閥；若將小型直動式減壓閥裝在主閥體外部，絲扣式自動風(fēng)閥制造商，則稱為外部先導(dǎo)式減壓閥。與直動式減壓閥相比，增加了由噴嘴、擋板、固定節(jié)流孔及氣室所組成的噴嘴擋板放大環(huán)節(jié)。當(dāng)噴嘴與擋板之間的距離發(fā)生微小變化時(shí)，就會使壓力發(fā)生根明顯的變化，從而引起膜片有較大的位移，去控制閥芯的上下移動，使進(jìn)氣閥口開大或關(guān)小、提高了對閥芯控制的靈敏度，即提高了穩(wěn)壓精度。減壓閥可將閥前管路較高的水壓減少至閥后管路所需的水平。絲扣式自動風(fēng)閥制造商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="絲扣式自動風(fēng)閥制造商,燃?xì)怆姶砰y" src="https://tyunfile.71360.com/UploadFile/wds2020/637316974320322265/1394298.png"></div><p style="text-indent:25px">比例閥，閥對流量的控制可以分為兩種。一種是開關(guān)控制，一種是連續(xù)控制，伺服閥和其它閥不同的是，它的能量損失更大一些，因?yàn)樗枰欢ǖ牧髁縼砭S持前置級控制油路的工作。一種是開關(guān)控制：要么全開、要么全關(guān)，流量要么大、要么小，沒有中間狀態(tài)，如普通的電磁直通閥、電磁換向閥、電液換向閥。另一種是連續(xù)控制：閥口可以根據(jù)需要打開任意一個(gè)開度，由此控制通過流量的大小，這類閥有手動控制的，如節(jié)流閥，也有電控的，如比例閥、伺服閥。絲扣式自動風(fēng)閥制造商蝶閥可以運(yùn)送泥漿，在管道口積存液體少。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="絲扣式自動風(fēng)閥制造商,燃?xì)怆姶砰y" src="https://tyunfile.71360.com/UploadFile/wds2020/637316973663125000/4810027.png"></div><p style="text-indent:25px">蝶閥施工、安裝要點(diǎn)：安裝位置、高度、進(jìn)出口方向有必要契合規(guī)劃要求，注意介質(zhì)活動的方向應(yīng)與閥體所標(biāo)箭頭方向一致，連接應(yīng)結(jié)實(shí)緊密。閥門安裝前有必要進(jìn)行外觀檢查，閥門的銘牌應(yīng)契合現(xiàn)行標(biāo)準(zhǔn)《通用閥門標(biāo)志》GB12220的規(guī)定。關(guān)于工作壓力大于1.0MPa及在主干管上起到切斷作用的閥門，安裝前應(yīng)進(jìn)行強(qiáng)度和緊密性能實(shí)驗(yàn)，合格后方準(zhǔn)使用。強(qiáng)度實(shí)驗(yàn)時(shí)，實(shí)驗(yàn)壓力為公稱壓力的1.5倍，持續(xù)時(shí)刻不少于5min，閥門殼體、填料應(yīng)無滲漏為合格。緊密性實(shí)驗(yàn)時(shí)，實(shí)驗(yàn)壓力為公稱壓力的1.1倍；實(shí)驗(yàn)持續(xù)的時(shí)刻契合GB50243的。</p><p style="text-indent:25px">減壓閥是一種自動降低管路工作壓力的專門裝置，它可將閥前管路較高的液體壓力減少至閥后管路所需的水平。這里的傳輸介質(zhì)主要是水。減壓閥普遍用于高層建筑、城市給水管網(wǎng)水壓過高的區(qū)域、礦井及其他場合，以保證給水系統(tǒng)中各用水點(diǎn)獲得適當(dāng)?shù)姆?wù)水壓和流量。鑒于水的漏失率和浪費(fèi)程度幾乎同給水系統(tǒng)的水壓大小成正比，因此減壓閥具有改善系統(tǒng)運(yùn)行工況和潛在節(jié)水作用，據(jù)統(tǒng)計(jì)其節(jié)水效果約為30%。減壓閥的構(gòu)造類型很多，以往常見的有薄膜式、內(nèi)彈簧活塞式等。減壓閥的基本作用原理是靠閥內(nèi)流道對水流的局部阻力降低水壓，水壓降的范圍由連接閥瓣的薄膜或活塞兩側(cè)的進(jìn)出口水壓差自動調(diào)節(jié)。蝶閥操作靈活省力，可選擇手動、電動、氣動、液壓方式。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="絲扣式自動風(fēng)閥制造商,燃?xì)怆姶砰y" src="https://tyunfile.71360.com/UploadFile/wds2020/637316973818164062/818605.png"></div><p style="text-indent:25px">蝶閥的優(yōu)點(diǎn)：1、啟閉方便迅速、省力、流體阻力小，可以經(jīng)常操作。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。3、可以運(yùn)送泥漿，在管道口積存液體少。4、低壓下，可以實(shí)現(xiàn)良好的密封。5、調(diào)節(jié)性能好。6、全開時(shí)閥座通道有效流通面積較大，流體阻力較小。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。8、密封面材料一般采用橡膠、塑料、故低壓密封性能好。9、安裝方便。10、操作靈活省力，可選擇手動、電動、氣動、液壓方式。蝶閥可實(shí)現(xiàn)遠(yuǎn)距離控制和自動化操作。絲扣式自動風(fēng)閥制造商</p><p style="text-indent:25px">蝶閥施工、安裝要點(diǎn)：安裝位置、高度、進(jìn)出口方向有必要契合規(guī)劃要求。絲扣式自動風(fēng)閥制造商</p><p style="text-indent:25px">在雙位調(diào)節(jié)、縮口地通道、低噪聲、有氣穴和氣化現(xiàn)象，向大氣少量滲漏，具有磨蝕性介質(zhì)時(shí)，可以選用蝶閥。在特殊工況條件下節(jié)流調(diào)節(jié)，或要求密封嚴(yán)格，或磨損嚴(yán)重、低溫（深冷）等工況條件下使用蝶閥時(shí)，需使用特殊設(shè)計(jì)金屬密封帶調(diào)節(jié)裝置地三偏心或雙偏心地**蝶閥。蝶閥適用于要求達(dá)到完全密封、氣體試驗(yàn)泄漏為零、壽命要求較高、工作溫度在-10度～150度的淡水、污水、海水、鹽水、蒸汽、天然氣、食品、藥品、油品和各種酸堿及其他管路上。絲扣式自動風(fēng)閥制造商</p><p style="text-indent:25px">中山市瓦達(dá)斯熱能設(shè)備技術(shù)有限公司是一家研發(fā)、生產(chǎn)、加工、銷售：熱能設(shè)備、電氣控制設(shè)備、燃控設(shè)備、燃?xì)庠O(shè)備配件；熱能設(shè)備安裝、調(diào)試及售后服務(wù)。公司是國內(nèi)燃控類產(chǎn)品生產(chǎn)配套齊全的公司之一，產(chǎn)品線涵蓋了燒嘴，控制器，燃?xì)忾y件，執(zhí)行器等各大種類。的公司，是一家集研發(fā)、設(shè)計(jì)、生產(chǎn)和銷售為一體的專業(yè)化公司。公司自創(chuàng)立以來，投身于燒嘴，蝶閥，調(diào)壓閥，燃燒控制器，是機(jī)械及行業(yè)設(shè)備的主力軍。瓦達(dá)斯熱能不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。瓦達(dá)斯熱能始終關(guān)注機(jī)械及行業(yè)設(shè)備市場，以敏銳的市場洞察力，實(shí)現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: 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