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src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445228874089478/5788132.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="v7ynp3t" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445228874089478/5788132.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3wy8t8r" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海高壓球閥生產(chǎn)公司,球閥</p><p><span>***更新：</span>2021-01-24 09:23:21</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="en7388p" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">藍(lán)帕控制閥門（江蘇）有限公司</a></p><p><span>聯(lián)系人：</span>彭俊蘭</p><p><span>郵箱: </span>shlapar@163.com</p><p><span>電話: </span>13918404049</p><p><span>傳真: </span>0523_87889288</p><p><span>網(wǎng)址: </span>http://laparvalve.com</p><p><span>手機(jī): </span>0523-87885388</p><p><span>地址: </span>泰興市黃橋工業(yè)園區(qū)軍民路北側(cè)</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="a3pm79t" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="qfu39qs" class="box"><p><p style="text-indent:25px">球閥密封用的四氟乙烯的物理特性，包括較高的膨脹系數(shù)，對(duì)冷流的敏感性和不良的熱傳導(dǎo)性，要求閥座密封的設(shè)計(jì)必須圍繞這些特性進(jìn)行。閥座密封的塑性材料也包括填充聚四氟乙烯，上海高壓球閥生產(chǎn)公司、尼龍和其他許多材料。但是，當(dāng)密封材料變硬時(shí)，密封的可靠性就要受到破壞，特別是在低壓差的情況下。此外，像丁腈橡膠這樣的合成橡膠也可用作閥座密封材料，上海高壓球閥生產(chǎn)公司，但它所適用的介質(zhì)和使用的溫度范圍藥受到限制。另外，上海高壓球閥生產(chǎn)公司，如果介質(zhì)不潤(rùn)滑，使用合成橡膠容易卡住球體。球閥有哪些結(jié)構(gòu)特征？上海高壓球閥生產(chǎn)公司</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海高壓球閥生產(chǎn)公司,球閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445228874089478/5788132.png"></div><p style="text-indent:25px">球閥具有哪些優(yōu)點(diǎn)？在全開或全閉時(shí)，球體和閥座的密封面與介質(zhì)隔離，介質(zhì)通過(guò)時(shí)，不會(huì)引起閥門密封面的侵蝕。適用范圍廣，通徑從小到幾毫米，大到幾米，從高真空至高壓力都可應(yīng)用。怎樣正確使用球閥？球閥只需要用旋轉(zhuǎn)90度的操作和很小的轉(zhuǎn)動(dòng)力矩就能關(guān)閉嚴(yán)密。完全平等的閥體內(nèi)腔為介質(zhì)提供了阻力很小、直通的流道。球閥的主要特點(diǎn)是本身結(jié)構(gòu)緊湊，易于操作和維修，球閥可用于控制空氣、水、蒸汽、各種腐蝕性介質(zhì)、泥漿、油品、液態(tài)金屬和放射性介質(zhì)等各種類型流體的流動(dòng)。球閥閥體可以是整體的，也可以是組合式的。上海高壓球閥生產(chǎn)公司球閥在生產(chǎn)制造過(guò)程中，極容易與其它金屬鐵制品接觸。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海高壓球閥生產(chǎn)公司,球閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445228943718789/4138253.png"></div><p style="text-indent:25px">球閥發(fā)展演變與工作原理：球閥只需要用旋轉(zhuǎn)90度的操作和很小的轉(zhuǎn)動(dòng)力矩就能關(guān)閉嚴(yán)密。完全平等的閥體內(nèi)腔為介質(zhì)提供了阻力很小、直通的流道。通常認(rèn)為球閥較適宜直接做開閉使用，但近來(lái)的發(fā)展已將球閥設(shè)計(jì)成使它具有節(jié)流和控制流量之用。球閥的主要特點(diǎn)是本身結(jié)構(gòu)緊湊，易于操作和維修，適用于水、溶劑、酸和天然氣等一般工作介質(zhì)，而且還適用于工作條件惡劣的介質(zhì)，如氧氣過(guò)氧化氫,甲烷和乙烯等。球閥閥體可以是整體的，也可以是組合式的。</p><p style="text-indent:25px">球閥密封性好，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，在受到較高壓力沖擊時(shí)，球體可能會(huì)發(fā)生偏移。這種結(jié)構(gòu)，一般用于中低壓球閥。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，又出現(xiàn)了油封球閥，既在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。球閥主密封結(jié)構(gòu)的形式，密封材料的選擇等影響球閥密封性能和使用性能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海高壓球閥生產(chǎn)公司,球閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanpa1/637445229005574209/4444373.png"></div><p style="text-indent:25px">由于聚四氟乙烯等材料具有良好的自潤(rùn)滑性，與球體的摩擦損失小，故氣動(dòng)球閥的使用壽命長(zhǎng)。流體阻力?。簹鈩?dòng)球閥是所有閥門分類中流體阻力較小的一種，即使是縮徑氣動(dòng)球閥，其流體阻力也相當(dāng)小。閥桿密封可靠：由于閥桿只作轉(zhuǎn)動(dòng)運(yùn)動(dòng)而不做升降運(yùn)動(dòng)，閥桿的填料密封不易破壞，且密封能力隨著介質(zhì)壓力的增高而增大。閥座密封性能好：采用聚四氟乙烯等彈性材料制成的密封圈，結(jié)構(gòu)易于密封，而且氣動(dòng)球閥的閥封能力隨著介質(zhì)壓力的增高而增大。流體阻力小，全通徑的球閥基本沒(méi)有流阻。結(jié)構(gòu)簡(jiǎn)單、體積小、重量輕。緊密可靠。它有兩個(gè)密封面，而且球閥的密封面材料普遍使用各種塑料，密封性好，能實(shí)現(xiàn)完全密封。在真空系統(tǒng)中也已普遍使用。球閥廠家?guī)懔私馇蜷y的結(jié)構(gòu)知識(shí)。上海高壓球閥生產(chǎn)公司</p><p style="text-indent:25px">在剛性密封座中，球閥工作的可靠性和使用壽命。上海高壓球閥生產(chǎn)公司</p><p style="text-indent:25px">V型氣動(dòng)球閥保養(yǎng)：填料函如有滲漏要及時(shí)的更換密封填料，更換時(shí)將閥桿脫開，壓板和填料壓蓋取下，即可以裝入新的填料；定期檢修；長(zhǎng)期停放時(shí)，應(yīng)裝上連接法蘭的保護(hù)罩，所以接口都要用塑料塞堵上。停放時(shí)，保證閥整體的垂直性或水平位置；不要將閥支承在敏感部位，如閥門、接頭、連線等處。球閥是球閥配上氣動(dòng)執(zhí)行器。氣動(dòng)執(zhí)行器的執(zhí)行速度相對(duì)較快，并且不需要工人親力親為，在很大程度上節(jié)約了人力資源以及時(shí)間。球閥的保養(yǎng)問(wèn)題也是需要進(jìn)行注意的。上海高壓球閥生產(chǎn)公司</p><p style="text-indent:25px">藍(lán)帕控制閥門（江蘇）有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家生產(chǎn)型公司。公司業(yè)務(wù)涵蓋閥門，管道及配件，氣動(dòng)元件，工業(yè)自動(dòng)化設(shè)備等，價(jià)格合理，品質(zhì)有保證。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)。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2989123.html</p></div></div></div></div></div><div id="a7vcegn" class="page-right twoColRt"><div id="she8xw2" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="l8vs8g3" 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