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class="home-main container clearfix"><div id="tczwy8z" class="twoCol"><div id="eyk8hol" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應</a>?<a href="http://m.cdcfah.com/cp/first-_jxjxysb/">機械及行業(yè)設備</a>?<a href="http://m.cdcfah.com/cp/second-jxjxysb_famenti/">閥門</a>?<a href="http://m.cdcfah.com/cp/third-famenti_diefakna/">蝶閥</a>?安徽進口真空管道蝶閥口徑頂耕國際貿易供應</p><div id="znkwnp7" class="leftbox clearfix"><h1>安徽進口真空管道蝶閥口徑頂耕國際貿易供應</h1><div id="zi7j7o8" class="proBig"><div id="dmoqike" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737493554688/8379117.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="m2oivs2" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737493554688/8379117.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ljgikrv" 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)品關鍵詞：</span>安徽進口真空管道蝶閥口徑</p><p><span>***更新：</span>2020-06-02 01:13:23</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="txprtv8" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">頂耕國際貿易（上海）有限公司</a></p><p><span>聯(lián)系人：</span>查劍來</p><p><span>郵箱: </span></p><p><span>電話: </span>18521036598</p><p><span>傳真: </span>021_61637356</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>021-61637356</p><p><span>地址: </span>大葉公路5225號1幢2370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="cbdvset" class="page-proshow02"><p class="title">詳細說明</p><div id="xbyvxoq" class="box"><p><p> 液壓缸直接推拉驅動式裝置結構簡單，形式變化多樣，作用在閥桿上的力和運動速度可調，控制靈活，安裝維護方便，工作環(huán)境適應性強( 防塵、防潮、防爆) ，可遠距離操控，適合管路在線流量精確控制等。但是油缸直立在閥門頂部高度尺寸較大，液壓缸活塞桿連接閥桿，由于油缸活塞的浮動性造成閥門中的閥板不能長時間精確定位，安徽進口真空管道蝶閥口徑，由于油缸結構限制，安徽進口真空管道蝶閥口徑，在應急狀態(tài)下液動閥門本體不易實現(xiàn)人力驅動閥門啟閉 </p> <p> 驅動大中型的蝶閥，安徽進口真空管道蝶閥口徑、球閥和旋塞閥所采用的液壓驅動裝置中，螺線擺動油缸要優(yōu)于齒輪齒條式擺動油缸。驅動大中型口徑的閘閥和截止閥所采用的液壓驅動裝置中，液壓馬達驅動式要優(yōu)于液壓缸直接推拉驅動式。對于精確控制閥門通過流量的調節(jié)閥采用液壓缸直接推拉驅動式其調節(jié)流量的響應速度快。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽進口真空管道蝶閥口徑" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737493554688/8379117.png"></div><p> 美國石油協(xié)會標準API 598是美標閥門**常用的檢驗和壓力試驗標準。制造商標準MSSSP61常作“全開”和“全關”的鋼制閥門的檢驗，但 </p> <p> <br /> </p> <p> 不適用于控制閥門。美標閥門通常不選用MSS SP61檢驗。API 598適用于下列API標準制造的閥門密封性能試驗： </p> <p> <br /> </p> <p> 法蘭式，凸耳，對夾式和對焊連接止回閥 API 594 </p> <p> <br /> </p> <p> 法蘭、螺紋和對焊連接的金屬旋塞閥 API 599 </p> <p> <br /> </p> <p> 石油和天然氣工業(yè)用DNl00及以下鋼制閘閥截止閥和止回閥 API 602 </p> <p> <br /> </p> <p> 法蘭和對焊連接的耐腐蝕栓接閥蓋閘閥 API 603 </p> <p> <br /> </p> <p> 法蘭、螺紋和對焊連接的金屬球閥 API 608 </p> <p> <br /> </p> <p> 雙法蘭式，凸耳和對夾式蝶閥 APl609 </p> <p> <br /> </p> <p> 工程設計中應注意：API 598--2004與1996版相比，取消了對API 600((石油和天然氣工業(yè)用螺栓連接閥蓋鋼制閘閥》的檢驗和壓力試驗。API 600一2001(ISO 10434--1998)標準規(guī)定閥門的密封性能試驗參照ISO 5208，但標準中表17和表18的泄漏量卻同API 598--1996標準的規(guī)定，而不是采用ISO5208的密封等級分類法。2009年9月1 13實施的API 600標準中糾正了2001版中的這個矛盾，規(guī)定閥門的密封性能試驗按照API 598，但沒有規(guī)定版本，這又與API 598--2004相矛盾。因此，工程設計中選用API 600和其密封性能試驗API 598標準時一定要明確標準的版本，確保標準內容的統(tǒng)一性。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽進口真空管道蝶閥口徑" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129736101689453/4021167.png"></div><p> 閥門的種類繁多，說法也不完全統(tǒng)一，有的按用途分（如化工、石油、電站等）、有的按介質分（如水蒸汽、空氣閥等）、有的按材質分（如鑄鐵、鑄鋼、鍛鋼、不銹鋼、陶瓷、UPVC等）、有的按連接形式分（如內螺紋、法蘭閥、對夾等）、有的按溫度分（如低溫閥、高溫閥等）。我國大多數(shù)習慣是按壓力和結構種類來區(qū)分。即：按公稱壓力分：≤1.6MPa為低壓閥、壓力2.5、4.0、6.4MPa為中壓閥、≥10MPa為高壓閥、超過100MPa為超高壓閥。按結構種類分主要有： </p> <p> 旋塞閥、閘閥、截止閥、球閥—用于開啟或關閉管道的介質流動。 </p> <p> 止回閥（包括底閥）—用于自動防止管道內的介質倒流。 </p> <p> 節(jié)流閥—用于調節(jié)管道介質的流量。 </p> <p> 蝶閥—用于開啟或關閉管道內的介質。也可作調節(jié)用。 </p> <p> 安全閥—用于鍋爐、容器設備及管道上，當介質壓力超過規(guī)定數(shù)值時，能自動排除過剩介質壓力，保證生產(chǎn)運行安全。 </p> <p> 減壓閥—用于自動降低管道及設備內介質壓力。系使介質經(jīng)過閥瓣的間隙時，產(chǎn)生阻力造成壓力損失，達到減壓目的。 </p> <p> 疏水器—用于蒸汽管道上自動排除冷凝水，防止蒸汽損失或泄漏。 </p> <p> V型球閥—用于對介質流量進行調節(jié)，流量特性為等百分比。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽進口真空管道蝶閥口徑" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737896738282/5305453.jpg"></div></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/112618.html</p></div></div></div></div></div><div id="qeby3kd" class="page-right twoColRt"><div id="aovx9rt" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="mfhjtfc" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" 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