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class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/sdkgfm/2019/11/637087462749484530/6370874627494845301249292.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="yhg2m3n" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/sdkgfm/2019/11/637087462749484530/6370874627494845301249292.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8xeb232" 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>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>安徽橡膠軟接頭閥門行情好</p><p><span>***更新：</span>2020-06-22 01:20:43</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="8j2z79b" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">山東凱鋼閥門管件有限公司</a></p><p><span>聯(lián)系人：</span>王魯凱</p><p><span>郵箱: </span>694088038@qq.com</p><p><span>電話: </span>18953964119</p><p><span>傳真: </span>0539_8153453</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0539-8153453</p><p><span>地址: </span>山東省臨沂市羅莊區(qū)盛莊街道化武路與王莊路交匯盛翔五金城3棟42號(hào)</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="jta32ip" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ke7e9gh" class="box"><p><p> 按驅(qū)動(dòng)方式分類分為自動(dòng)閥類，安徽橡膠軟接頭閥門行情好、動(dòng)力驅(qū)動(dòng)閥類和手動(dòng)閥類： </p> <p> (1) 自動(dòng)閥是指不需要外力驅(qū)動(dòng)，而是依靠介質(zhì)自身的能量來使閥門動(dòng)作的閥門。如安全閥、減壓閥、疏水閥、止回閥、自動(dòng)調(diào)節(jié)閥等。 </p> <p> (2) 動(dòng)力驅(qū)動(dòng)閥：動(dòng)力驅(qū)動(dòng)閥可以利用各種動(dòng)力源進(jìn)行驅(qū)動(dòng)。分為電動(dòng)閥、氣動(dòng)閥、液動(dòng)閥等。電動(dòng)閥：借助電力驅(qū)動(dòng)的閥門。氣動(dòng)閥：借助壓縮空氣驅(qū)動(dòng)的閥門。液動(dòng)閥：借助油等液體壓力驅(qū)動(dòng)的閥門。 </p> <p> 此外還有以上幾種驅(qū)動(dòng)方式的組合，如氣-電動(dòng)閥等。 </p> <p> (3) 手動(dòng)閥：手動(dòng)閥借助手輪、手柄、杠桿、鏈輪，由人力來操縱閥門動(dòng)作。當(dāng)閥門啟閉力矩較大時(shí)，安徽橡膠軟接頭閥門行情好，可在手輪和閥桿之間設(shè)置齒輪或蝸輪減速器，安徽橡膠軟接頭閥門行情好。必要時(shí)，也可以利用萬向接頭及傳動(dòng)軸進(jìn)行遠(yuǎn)距離操作。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽橡膠軟接頭閥門行情好" src="http://tyunfile.71360.com/UpLoadFile/sdkgfm/2019/11/637087462749484530/6370874627494845301249292.jpg"></div><p> 七、內(nèi)自緊連接： </p> <p> 以上各種連接形式，都是利用外力來抵消介質(zhì)壓力，實(shí)現(xiàn)密封的。下面介紹利用介質(zhì)壓力進(jìn)行自緊的連接形式。它的密封圈裝在內(nèi)錐體處，跟介質(zhì)相向的一面成一定角度，介質(zhì)壓力傳給內(nèi)錐體，又傳遞給密封圈，在一定角度的錐面上，產(chǎn)生兩個(gè)分力，一個(gè)與閥體中心線平行向外，另一個(gè)壓向閥體內(nèi)壁。后面這個(gè)分力便是自緊力。介質(zhì)壓力愈大，自緊力也愈大。所以這種連接形式，適合于高壓閥門。它比法蘭連接，要節(jié)省許多材料和人力，但也需要一定的預(yù)緊力，以便在閥內(nèi)壓力不高時(shí)，使用可靠。利用自緊密封原理做成的閥門，一般是高壓閥門。 </p> <p> 閥門連接的形式還很多，例如有的不必拆除的小閥門，跟管子焊接在一起；有的非金屬閥門，采用承插式連接，等等。閥門使用者要根據(jù)具休情況具體對待。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽橡膠軟接頭閥門行情好" src="http://tyunfile.71360.com/UpLoadFile/sdkgfm/2019/11/637087462455667680/6370874624556676808498499.jpg"></div><p> 閥門介紹 </p> <p> 閥門是用來開閉管路、控制流向、調(diào)節(jié)和控制輸送介質(zhì)的參數(shù)（溫度、壓力和流量）的管路附件。根據(jù)其功能，可分為關(guān)斷閥、止回閥、調(diào)節(jié)閥等。閥門是流體輸送系統(tǒng)中的控制部件，具有截止、調(diào)節(jié)、導(dǎo)流、防止逆流、穩(wěn)壓、分流或溢流泄壓等功能。用于流體控制系統(tǒng)的閥門，從**簡單的截止閥到極為復(fù)雜的自控系統(tǒng)中所用的各種閥門，其品種和規(guī)格相當(dāng)繁多。閥門可用于控制空氣、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)。閥門根據(jù)材質(zhì)還分為鑄鐵閥門，鑄鋼閥門，不銹鋼閥門（201、304、316等），鉻鉬鋼閥門，鉻鉬釩鋼閥門，雙相鋼閥門，塑料閥門，非標(biāo)訂制閥門等。 </p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/344033.html</p></div></div></div></div></div><div id="isub8tk" class="page-right twoColRt"><div id="zo3odpr" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="j23382h" class="recomPic likePro"><a href="http://www.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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