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src="http://tyunfile.71360.com/UpLoadFile/sdkgfm/2019/11/637087466086681143/6370874660866811439126401.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="aj38oaw" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/sdkgfm/2019/11/637087466086681143/6370874660866811439126401.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="uhy4syz" 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>甘肅安全閥門廠商</p><p><span>***更新：</span>2020-06-23 18:23:10</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="7vgkypq" 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="zcyhhtk" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="wubkggh" class="box"><p><p> 既按原理、作用又按結(jié)構(gòu)劃分，是目前國(guó)際、國(guó)內(nèi)**常用的分類方法。一般分閘閥、截止閥，甘肅安全閥門廠商、節(jié)流閥、儀表閥、柱塞閥、隔膜閥、旋塞閥、球閥、蝶閥、止回閥、減壓閥安全閥、疏水閥，甘肅安全閥門廠商、調(diào)節(jié)閥、底閥、過(guò)濾器、排污閥等。 </p> <p> 由于閥門的用途是非常廣的，因此它起的作用也是很大的。例如：在發(fā)電廠中閥門能夠控制鍋爐和汽輪機(jī)的運(yùn)轉(zhuǎn)；在石油、化工生產(chǎn)中，閥門同樣也起著控制全部生產(chǎn)設(shè)備和工藝流程的正常運(yùn)轉(zhuǎn)。在其它部門也是這樣。盡管如此，閥門同其它產(chǎn)品比較往往被人們忽視，甘肅安全閥門廠商。例如：在安裝機(jī)器設(shè)備時(shí)，人們往往把重點(diǎn)放在主要機(jī)器設(shè)備方面，卻忽視了閥門。這樣會(huì)使整個(gè)生產(chǎn)效率降低或停產(chǎn)、或造成種種其它事件發(fā)生。因此，對(duì)閥門的選用、安裝、使用等都必須進(jìn)行認(rèn)真負(fù)責(zé)的工作。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甘肅安全閥門廠商" src="http://tyunfile.71360.com/UpLoadFile/sdkgfm/2019/11/637087466086681143/6370874660866811439126401.png"></div><p> 分類 </p> <p> 折疊按作用和用途分類 </p> <p> （1）截?cái)囝悾喝玳l閥、截止閥、旋塞閥、球閥、蝶閥、針型閥、隔膜閥等。截?cái)囝愰y門又稱閉路閥，截止閥，其作用是接通或截?cái)喙苈分械慕橘|(zhì)。 </p> <p> (2) 止回類：如止回閥，止回閥又稱單向閥或逆止閥，止回閥屬于一種自動(dòng)閥門，其作用是防止管路中的介質(zhì)倒流、防止泵及驅(qū)動(dòng)電機(jī)反轉(zhuǎn)，以及容器介質(zhì)的泄漏。水泵吸水關(guān)的底閥也屬于止回閥類。 </p> <p> (3) 安全類：如安全閥、防爆閥等。安全閥的作用是防止管路或裝置中的介質(zhì)壓力超過(guò)規(guī)定數(shù)值，從而達(dá)到安全保護(hù)的目的。 </p> <p> (4) 調(diào)節(jié)類：如調(diào)節(jié)閥、節(jié)流閥和減壓閥，其作用是調(diào)節(jié)介質(zhì)的壓力、流量等參數(shù)。 </p> <p> (5) 分流類：如分配閥、三通閥、疏水閥。其作用是分配、分離或混合管路中的介質(zhì)。 </p> <p> (6）特殊用途類：如清管閥、放空閥、排污閥、排氣閥、過(guò)濾器等。排氣閥是管道系統(tǒng)中必不可少的輔助元件，廣泛應(yīng)用于鍋爐、空調(diào)、石油天然氣、給排水管道中。往往安裝在制高點(diǎn)或彎頭等處，排除管道中多余氣體、提高管道路使用效率及降低能耗。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甘肅安全閥門廠商" src="http://tyunfile.71360.com/UpLoadFile/sdkgfm/2019/11/637087462913012624/6370874629130126246683944.jpg"></div><p> 密封性能要求 </p> <p> 閥門的密封性能是指閥門各密封部位阻止介質(zhì)泄漏的能力，它是閥門**重要的技術(shù)性能指標(biāo)。閥門的密封部位有三處：?jiǎn)㈤]件與閥座兩密封面間的接觸處；填料與閥桿和填料函的配合處；閥體與閥蓋的連接處。其中前一處的泄漏叫做內(nèi)漏，也就是通常所說(shuō)的關(guān)不嚴(yán)，它將影響閥門截?cái)嘟橘|(zhì)的能力。對(duì)于截?cái)嚅y類來(lái)說(shuō)，內(nèi)漏是不允許的。后兩處的泄漏叫做外漏，即介質(zhì)從閥內(nèi)泄漏到閥外。外漏會(huì)造成物料損失，污染環(huán)境，嚴(yán)重時(shí)還會(huì)造成惡事件。對(duì)于易燃易爆、或有放射的介質(zhì)，外漏更是不能允許的，因而閥門必須具有可靠的密封性能。 </p></p><br /><p>文章來(lái)源地址: 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