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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>甘肅省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>蘭州閘閥哪家好,閘閥</p><p><span>***更新：</span>2020-11-19 00:23:12</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="rfc97lo" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">甘肅誠(chéng)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(wǎng)址: </span>http://www.gscyhwz.com</p><p><span>手機(jī): </span>0931-7840458</p><p><span>地址: </span>北濱河西路1226之27號(hào)(立達(dá)建材城A區(qū)11棟104室)</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="jrdcyfx" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="k8zryfm" class="box"><p><p> <span style="font-size:16px;">彈性性座封閘閥由于采用噴涂工藝，環(huán)氧樹脂涂層表面非常光滑，極大地降低了介質(zhì)流經(jīng)通道的表面粗糙度，因此流阻小、水頭損?。煌瑫r(shí)閥體底部設(shè)計(jì)為直通型也減少了流阻和水頭損失。特殊軸密封由于閥桿采用三道O型圈密封，一道防塵圈密封設(shè)計(jì)，可減少開(kāi)關(guān)時(shí)的摩擦阻力，大幅減少漏水現(xiàn)象。彈性座封閘閥操作時(shí)的啟閉方向，蘭州閘閥哪家好，一律應(yīng)順時(shí)針關(guān)閉。由于管網(wǎng)中的氣動(dòng)閥，經(jīng)常是人工啟閉，啟閉轉(zhuǎn)數(shù)不宜過(guò)多，就是大口徑閥門亦應(yīng)在200－600轉(zhuǎn)內(nèi)。為了便于一個(gè)人的啟閉操作，在管道工壓狀況下，蘭州閘閥哪家好，蘭州閘閥哪家好，比較大啟閉力矩宜為240N-m。彈性座封閘閥啟閉操作端應(yīng)為方榫，且尺寸標(biāo)準(zhǔn)化，并面向地面，以便人們從地面上可直接操作。帶輪盤的閥門不適用于地下管網(wǎng)。</span> 城市自來(lái)水工程，選用單閘板或雙閘板無(wú)導(dǎo)流孔明桿平板閘閥；蘭州閘閥哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘭州閘閥哪家好,閘閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637316968436396484/2144139.png"></div><p> <span style="font-size:16px;">閘閥是閥門類型的主要關(guān)鍵之一，閥門型號(hào)由閥門類型、驅(qū)動(dòng)方式、連接形式、結(jié)構(gòu)形式、密封面材料或襯里材料類型、壓力代號(hào)或工作溫度下的工作壓力、閥體材料七部分組成。安裝方法閘閥的安裝方法及注意需求安裝前須檢查閥門腔內(nèi)和密封面等部位，不允許有污物或砂粒附著；各連接部位螺栓，要求均勻擰緊；檢查填料部位要求壓緊，既保證填料的密封性，也要保證閘板開(kāi)啟靈活；用戶在安裝閥門前，必須校對(duì)閥門型號(hào)，連接尺寸及注意介質(zhì)流向，保證與閥門要求一致性；用戶在安裝閥門時(shí)，必須預(yù)留閥門驅(qū)動(dòng)的必要空間；驅(qū)動(dòng)裝置的接線須按線路圖進(jìn)行；閘閥必須定期保養(yǎng)，不得隨意碰撞及擠壓，以免影響密封。閘閥是否適合工業(yè)上的安裝就要在選購(gòu)的時(shí)候注意。蘭州閥門廠家給您專業(yè)的建議。</span> 山丹閘閥哪里買閘閥和蝶閥在管道使用中都是起開(kāi)關(guān)，調(diào)節(jié)流量的作用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘭州閘閥哪家好,閘閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637316968205615234/7797446.png"></div><p> <span style="font-size:16px;">采用縮徑式流道（無(wú)論是錐管形非均勻縮徑或均勻縮徑），其優(yōu)點(diǎn)是同一規(guī)格的閥門，可減少閘板的尺寸、啟閉力與力矩；缺點(diǎn)是流阻增加，壓降和能耗增大，所以縮孔不宜太大。對(duì)錐管形縮徑來(lái)說(shuō)，閥座的內(nèi)徑與公稱通徑之比，通常取。公稱通徑小于250mm的縮徑閥門，其閥座內(nèi)徑一般比公稱通徑降低一檔；公稱通徑等于或大于300mm的縮徑閥門，其閥座內(nèi)徑一般比公稱通徑降低二檔。流道呈錐管形的即是一種非均勻縮徑，這類閥門入口端的孔徑基本上與公稱通徑相同，然后逐漸縮小，至閥座處縮小。閥關(guān)閉時(shí)，密封面可以只依靠介質(zhì)壓力來(lái)密封，即只依靠介質(zhì)壓力將閘板的密封面壓向另一側(cè)的閥座來(lái)保證密封面的密封，這就是自密封。大部分閘閥是采用強(qiáng)制密封的，即閥門關(guān)閉時(shí)，要依靠外力強(qiáng)行將閘板</span><span style="font-size:16px;">壓向閥座，以保證密封面的密封性。</span> </p><p> <span style="font-size:16px;">閥體結(jié)構(gòu)整體式焊接，不bai會(huì)有外部du泄漏現(xiàn)象。閥座由PTFE密封環(huán)及彈簧組成對(duì)zhi壓力和溫度的變化適應(yīng)能力dao強(qiáng)，在使用范圍內(nèi)不會(huì)產(chǎn)生任何泄漏。閥桿的防滲漏結(jié)構(gòu)、閥桿底部有1個(gè)PTFE自封密封墊和1個(gè)O型密封圈，上面有2個(gè)O型密封圈、兩個(gè)PTFE密封墊組成，確保無(wú)泄露。閥體材料與管道材質(zhì)相同，不會(huì)出現(xiàn)應(yīng)力不勻，也不會(huì)由于地震及車輛經(jīng)過(guò)地面時(shí)而擠壓變形。閥體輕且易于保溫。直埋式球閥可以直接埋于地下，不用建高大閥門井，只需地面上設(shè)置小型淺井，**節(jié)省施工費(fèi)用及工程時(shí)間。焊接球閥在各個(gè)領(lǐng)域使用都非常***，其優(yōu)越的品質(zhì)和高性能的穩(wěn)定性是普通鑄鋼球閥所無(wú)法達(dá)到的，全焊接球閥使用壽命遠(yuǎn)遠(yuǎn)大于鑄鋼球閥，全焊接球閥***應(yīng)用于城市燃?xì)?、城市供熱、石油化?/span><span style="font-size:16px;">、造船、鋼鐵、調(diào)壓站、發(fā)電廠等各類管道設(shè)備上。</span> 閘閥的特點(diǎn)：密封性能好，流體阻力小，且有一定的調(diào)節(jié)性能；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘭州閘閥哪家好,閘閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637316968107236328/1299014.png"></div><p> <span style="font-size:16px;">彈性座封閘閥規(guī)格及類別，應(yīng)符合管道設(shè)計(jì)文件的要求。。若是企業(yè)標(biāo)準(zhǔn)，應(yīng)注明型號(hào)的相關(guān)說(shuō)明。，要求≥管道的工作壓力，在不影響價(jià)格的前提下，閥門可承受的工壓應(yīng)大于管道實(shí)際的工壓；彈性座封閘閥關(guān)閉狀況下的任何一側(cè)應(yīng)能承受；閥門開(kāi)啟狀況下，閥體應(yīng)能承受二倍閥門工壓的要求。，應(yīng)說(shuō)明依據(jù)的國(guó)標(biāo)編號(hào)，若是企業(yè)標(biāo)準(zhǔn)，采購(gòu)合同上應(yīng)附企業(yè)文件。本類閥門在管道中一般應(yīng)當(dāng)水平安裝、彈性座封閘閥標(biāo)質(zhì)，應(yīng)以球墨鑄鐵，鑄鋼，不銹鋼，316L為主，并注明牌號(hào)及鑄鐵實(shí)際的物理化學(xué)檢測(cè)數(shù)據(jù)。，力求不銹鋼閥桿(2CR13)，大口徑閥門也應(yīng)是不銹鋼嵌包的閥桿。，采用鑄鋁黃銅或鑄鋁青銅，且硬度與強(qiáng)度均大于閥桿。，其硬度與強(qiáng)度均應(yīng)不大于閥桿，且在水浸泡狀況下與閥桿、閥體不形成電化學(xué)腐蝕。</span> 一般只適用于全開(kāi)或全閉，不能作調(diào)節(jié)和節(jié)流使用；海原閘閥生產(chǎn)廠家</p><p style="text-indent:25px">閘閥（gate valve）是一個(gè)啟閉件閘板。蘭州閘閥哪家好</p><p> <span style="font-size:16px;">閘閥的特點(diǎn)和用途：閘閥的優(yōu)點(diǎn)是流動(dòng)阻力小，開(kāi)閉較省力，不受介質(zhì)流向的限制，介質(zhì)可以兩個(gè)方向流動(dòng)，結(jié)構(gòu)尺寸較小，全開(kāi)時(shí)密封面受介質(zhì)沖蝕小。缺點(diǎn)是結(jié)構(gòu)復(fù)雜，高度尺寸較大，開(kāi)啟需一定的空間，開(kāi)閉時(shí)間長(zhǎng)，開(kāi)閉時(shí)密封面容易受沖蝕和擦傷。閘閥的應(yīng)用范圍是由其特點(diǎn)決定的，一般用于公稱通徑大于100mm的管道上，作切斷作用。閘閥可依靠介質(zhì)壓力緊緊與密封面緊閉，從而達(dá)到不泄露的效果。當(dāng)啟閉時(shí)閥芯和閥座密封面始終接觸并相互磨擦，因此密封面容易磨損，閘閥處于接近關(guān)閉時(shí)，管道前后壓差很大，使密封面磨損更加嚴(yán)重。閘閥的結(jié)構(gòu)會(huì)比截止閥更復(fù)雜，從外形來(lái)看，同口徑情況下，閘閥要比截止閥高，截止閥要比閘閥長(zhǎng)。另外，閘閥還有明桿和暗桿之分。截止閥沒(méi)有。</span> 蘭州閘閥哪家好</p><p style="text-indent:25px">甘肅誠(chéng)禹惠物資有限公司主要經(jīng)營(yíng)范圍是機(jī)械及行業(yè)設(shè)備，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場(chǎng)口碑。公司業(yè)務(wù)涵蓋誠(chéng)禹惠閥門，球閥批發(fā)，閥門批發(fā)，蝶閥批發(fā)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)。甘肅誠(chéng)禹惠物資秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實(shí)”的經(jīng)營(yíng)理念，全力打造公司的重點(diǎn)競(jìng)爭(zhēng)力。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2044979.html</p></div></div></div></div></div><div id="alixovc" class="page-right twoColRt"><div id="hwi4gce" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="pewqxeq" 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" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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