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<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 id="qgqbi"></u><noframes id="qgqbi"></noframes><menu 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id="bpjny9h" class="proBig"><div id="qctistr" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318945298496093/7120604.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="emjt3v7" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318945298496093/7120604.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="gskxjrm" 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>甘肅省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產品關鍵詞：</span>黃南州球閥廠家價格,球閥</p><p><span>***更新：</span>2020-12-21 16:21:54</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="o7shwcw" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">甘肅誠禹惠物資有限公司</a></p><p><span>聯(lián)系人：</span>楊和平</p><p><span>郵箱: </span>349134533@qq.com</p><p><span>電話: </span>18294448288</p><p><span>傳真: </span>0931_</p><p><span>網址: </span>http://www.gscyhwz.com</p><p><span>手機: </span>0931-7840458</p><p><span>地址: </span>北濱河西路1226之27號(立達建材城A區(qū)11棟104室)</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="8cfrsja" class="page-proshow02"><p class="title">詳細說明</p><div id="igifw8b" class="box"><p><p> <span style="font-size:16px;"></span><span style="font-size:16px;">球閥的安裝1、球閥的任何一段都可安裝在上游端，手柄球閥可以安裝在管線的任何位置，如果配置執(zhí)行機構(如齒輪箱、電-氣動執(zhí)行器)的球閥，則必須垂直安裝，閥門進出口處在水平位置上。2、球閥法蘭與管線法蘭間按管路設計要求裝上密封墊。3、法蘭上的螺栓需對稱、逐次、均勻擰緊。4、如果球閥采取氣動、電動等執(zhí)行器時，按說明書完成氣源、電源的安裝。球閥安裝后的檢查只有卸除球閥前后的壓力，才能對球閥進行拆卸分解操作。2、在對球閥的分解與再裝配過程，需要對有密封性零部件的保護，特別是非金屬零部件，像O型圈等部件比較好使用**的工具。3、球閥閥體重新裝配時螺栓必須對稱、逐步、均勻地擰緊。4、清洗劑應與球閥中的橡膠件、塑料件、金屬件及工作介質(例如燃氣)等均相容。工作介質為燃氣時，可用汽油(GB484-89)清洗金屬零件。非金屬零件用純凈水或酒精清洗。1、安裝完畢后，啟動球閥開、關數(shù)次，應該動作靈活，受力均勻，黃南州球閥廠家價格，球閥工作正常。2、根據(jù)管道壓力設計要求，黃南州球閥廠家價格，通壓后檢測球閥與管道法蘭結合面的密封性能，黃南州球閥廠家價格。</span> 球閥和旋塞閥是同屬一個類型的閥門，只有它的關閉件是個球體.黃南州球閥廠家價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黃南州球閥廠家價格,球閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318945298496093/7120604.png"></div><p> <span style="font-size:16px;">球閥不僅結構簡單、密封性能好，而且在一定的公稱通經范圍內體積較小、重量輕、材料耗用少、安裝尺寸小，并且驅動力矩小，操作簡便、易實現(xiàn)快速啟閉，是近十幾年來發(fā)展快的閥門品種之一。特別是在美、日、德、法、意、西、英等工業(yè)發(fā)達國家，球閥的使用非常多，使用品種和數(shù)量仍在繼續(xù)擴大，并向高溫、高壓、大口經、高密封性、長壽命、優(yōu)良的調節(jié)性能以及一閥多功能方向發(fā)展，其可靠性及其他性能指標均達到較高水平，并已部分取代閘閥、截止閥、調節(jié)閥。隨著球閥的技術進步，在可以預見的短時見內，特別是在石油天然氣管線上、煉油裂解裝置上以及核工業(yè)上將有更***的應用。此外，在其他工業(yè)中的大中型口徑、中低壓力領域，球閥也將會成為主導的閥門類型之一。</span> 莊浪球閥供應商家球閥的球體是固定的，受壓后不產生移動。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黃南州球閥廠家價格,球閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318945453330078/6646320.png"></div><p> <span style="font-size:16px;">球閥的性能原理①球閥性能出色，擁有流體阻力小(全通徑流道閥體阻力系數(shù)幾乎與管道相同、不會造成壓力損失)。②結構簡約，閥體對稱、體積小、可雙向流動、雙向密封。③密封可靠(尤其是閥座密封面采用非金屬材料時)④操作方便、啟閉迅速、轉動90度即可完成閥門的啟閉，便于遠距離控制。⑤維修方便，閥座密封圈一般都是活動的，拆換方便，如果采用上裝式結構，可在線更換。⑥閥門在全開或者全關位置，密封副與介質完全隔離，高速通過的介質不會沖蝕密封副。⑦球體在啟閉時是旋轉擦拭的過程，所以多數(shù)結構的球閥可以用于帶懸浮固體顆粒的介質，選用合適的耐磨的閥座密封材料，也可用于粉狀介質。⑧直通式球閥用作切斷用，使用***、三通、四通等球閥用于分配介質和改變介質流向、V型可做節(jié)流用。⑨全通徑球閥全開式易于清掃球通過清掃管線，在石油，天然氣管道中***使用。⑩適用范圍廣、工作壓力從真空至高壓，公稱直徑DN8~3000，工作溫度為-254~815攝氏度。</span> </p><p> <span style="font-size:16px;">球閥適用場合由于球閥通常用橡膠、尼龍和聚四氟乙烯作為閥座密封圈材料，因此它的使用溫度受到閥座密封圈材料的限制。球閥的截止作用是靠金屬球體在介質的作用下，于塑料閥座之間相互壓緊來完成的（浮動球球閥）。閥座密封圈在一定的接觸壓力作用下，局部地區(qū)發(fā)生彈塑變形。這一變形可以補償球體的制造精度和表面粗糙度，保證球閥的密封性能。又由于球閥的閥座密封圈通常采用塑料制成，故在選擇球閥的結構和性能上，要考慮球閥的耐火和防火，特別是在石油、化工、冶金等部門，在易燃、易爆介質的設備和管路系統(tǒng)中使用球閥，更應注意耐火和防火。通常，在雙位調節(jié)、密封性能嚴格、泥漿、磨損、縮口通道、啟閉動作迅速（1/4轉啟閉）、高壓截止（壓差大）、低噪聲、有氣穴和氣化現(xiàn)象、向大</span><span style="font-size:16px;">氣少量滲漏，操作力矩小、流體阻力小的管路系統(tǒng)中，推薦使用球閥。</span> 球閥還有一個優(yōu)點是球體對閥座的密封非常好，通常不會發(fā)生內漏。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黃南州球閥廠家價格,球閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318945207773437/7066248.png"></div><p> <span style="font-size:16px;">球閥的主要選用原則：1、石油、天然氣的輸送主管線、需要清掃管線的，又需埋設在地下的，選用全通徑、全焊接結構的球閥；埋設在地上的，選擇全通徑焊接連接或法蘭連接的球閥；支管，選用法蘭連接、焊接連接，全通徑或縮徑的球閥。2、成品油的輸送管線和貯存設備，選用法蘭連接的球閥。3、城市煤氣和天然氣的管路上，選用法蘭連接和內螺紋連接的浮動球閥。4、冶金系統(tǒng)中的氧氣管路系統(tǒng)中，宜選用經過嚴格脫脂處理，法蘭連接的固定球球閥。5、低溫介質的管路系統(tǒng)和裝置上，宜選用加上閥蓋的低溫球閥。6、煉油裝置的催化裂化裝置的管路系統(tǒng)上，可選用升降桿式球閥。7、化工系統(tǒng)的酸堿等腐蝕性介質的裝置和管路系統(tǒng)中，宜選用奧氏體不銹鋼制造的、聚四氟乙烯為閥座密封圈的全不銹鋼球閥。8、冶金系統(tǒng)、電力系統(tǒng)、石化裝置、城市供熱系統(tǒng)中的高溫介質的管路系統(tǒng)或裝置上，可選用金屬對金屬密封球閥。9、需要進行流量調節(jié)時，可選用蝸輪蝸桿傳動的、氣動或電動的帶V形開口的調節(jié)球閥。</span> 球閥閥體可以是整體的，也可以是組合式的。黃南州球閥廠家價格</p><p style="text-indent:25px">法蘭上的螺栓需對稱、逐次、均勻擰緊。黃南州球閥廠家價格</p><p> <span style="font-size:16px;">球閥一般是即開即關使用，密封性也沒有針閥，膜片閥好！如果用在高壓易燃易爆氣體上，氣體流速太快，有一定的風險系數(shù)，球閥通徑比較大，一般和口徑相同，所以截流比較小，通過性比較好！球閥按照操作原理一般分為手動，氣動，電動！我們實驗室一般使用的手動比較多，捷銳目前有手動和氣動！按照結構分:直通，多通，三片式，二片式，一體式。在我國，球閥被的應用在石油煉制、長輸管線、化工、造紙、制藥、水利、電力、市政、鋼鐵等行業(yè)，在國民經濟中占有舉足輕重的地位。它具有旋轉90度的動作，旋塞體為球體，有圓形通孔或通道通過其軸線。球閥在管路中主要用來做切斷、分配和改變介質的流動方向，它只需要用旋轉90度的操作和很小的轉動力矩就能關閉嚴密。球閥適宜做開關、切斷閥使用。浮動球閥主要特點是球體無支撐軸，球體被兩閥座夾持其中呈“浮動”狀態(tài)，它在管道上主要用于切斷、分配和改變介質流動方向。浮動球閥主要特點的閥座密封設計</span><span style="font-size:16px;">、可靠的倒密封閥封桿、防火靜電功能、自動泄壓和鎖定裝置等結構特點。</span> 黃南州球閥廠家價格</p><p style="text-indent:25px">甘肅誠禹惠物資有限公司致力于機械及行業(yè)設備，是一家服務型的公司。甘肅誠禹惠物資致力于為客戶提供良好的誠禹惠閥門，球閥批發(fā)，閥門批發(fā)，蝶閥批發(fā)，一切以用戶需求為中心，深受廣大客戶的歡迎。公司注重以質量為中心，以服務為理念，秉持誠信為本的理念，打造機械及行業(yè)設備良好品牌。甘肅誠禹惠物資立足于全國市場，依托強大的研發(fā)實力，融合前沿的技術理念，飛快響應客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2500138.html</p></div></div></div></div></div><div id="yfr7cr7" class="page-right twoColRt"><div id="ygsoa8q" class="box01 margin10 clearfix"><h3><a 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