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src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637408829284268214/3033656.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="maesguk" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637408829284268214/3033656.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="msq2a8a" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>閥門哪家好,閥門</p><p><span>***更新：</span>2021-01-24 04:12:41</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="wcqwkek" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇蘭閥通用設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>金</p><p><span>郵箱: </span>81768246@qq.com</p><p><span>電話: </span>13915001988</p><p><span>傳真: </span>0519_</p><p><span>網(wǎng)址: </span>http://www.lanfa.cn</p><p><span>手機(jī): </span>0519-88610258</p><p><span>地址: </span>橫山橋鎮(zhèn)省莊村</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="k0g8ag0" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ywmayma" class="box"><p><p style="text-indent:25px">閥門裝配要求：清洗干凈的部件必須密封保存，以供安裝。對(duì)安裝過程要求如下：1、安裝車間必須保證潔凈，閥門哪家好，或者搭建臨時(shí)的潔凈區(qū)域，例如用新購的彩條布或者塑料薄膜等，防止在安裝過程中有灰塵進(jìn)入。2、裝配工人必須身著潔凈的純棉工作服，頭戴純棉帽，頭發(fā)不能外漏，腳穿干凈鞋子，手戴塑膠手套，脫脂、。3、裝配用工具必須在裝配前進(jìn)行脫脂清洗，保證潔凈。其他要求：1、裝配完成的閥門用氮?dú)庵辽俅祾?分鐘。2、氣密試驗(yàn)必須是用純凈的氮?dú)狻?、氣密試驗(yàn)合格后進(jìn)行包封，用干凈聚乙烯帽密封，聚乙烯帽使用前應(yīng)用有機(jī)溶劑浸泡，閥門哪家好，擦拭干凈。4、然后用真空袋進(jìn)行密封。5、較后裝箱。6，閥門哪家好、運(yùn)輸過程中要采取措施保證包封不破損。4、驗(yàn)收要求驗(yàn)收遵循HG 20202-2000 《脫脂工程施工及驗(yàn)收規(guī)范》，裝配前每個(gè)零部件均用干凈的精密濾紙進(jìn)行擦拭，選擇部件死角，濾紙不變顏色為合格。閥門打壓試驗(yàn)后，密封腔閥腔內(nèi)氣體和水分因環(huán)境溫度升高而升壓。閥門哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="閥門哪家好,閥門" src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637408829284268214/3033656.png"></div><p style="text-indent:25px">球閥工作原理：球閥是用帶有圓形通道的球體作啟閉件，球體隨閥桿轉(zhuǎn)動(dòng)實(shí)現(xiàn)啟閉動(dòng)作的閥門。球閥的啟閉件是一個(gè)有孔的球體，繞垂直于通道的軸線旋轉(zhuǎn)，從而達(dá)到啟閉通道的目的。球閥作用球閥主要供開啟和關(guān)閉管道和設(shè)備介質(zhì)之用，主要是用于快速開關(guān)流體。因?yàn)殚_關(guān)程度不易較準(zhǔn)調(diào)節(jié)控制，所以不適宜作流量調(diào)節(jié)。試壓方法氣動(dòng)球閥的強(qiáng)度試驗(yàn)應(yīng)在球體半開狀態(tài)下進(jìn)行。浮動(dòng)式球閥密封性試驗(yàn)：將閥處于半開狀態(tài)，一端引入試驗(yàn)介質(zhì)，另一端封閉；將球體轉(zhuǎn)動(dòng)幾次，閥門處于關(guān)閉狀態(tài)時(shí)打開封閉端檢查，同時(shí)檢查填料和墊片處密封性能，不得有滲漏現(xiàn)象。然后從另一端引入試驗(yàn)介質(zhì)，重復(fù)上述試驗(yàn)。閥門哪家好如手輪丟失，應(yīng)及時(shí)配齊，而不能夠用活扳手代替。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="閥門哪家好,閥門" src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637408829227775070/2697520.png"></div><p style="text-indent:25px">閥門基本知識(shí)：閥門可用于控制水、蒸汽、油品、氣體、泥漿、各種腐蝕性介質(zhì)、液態(tài)金屬和放射性流體等各種類型流體的流動(dòng) ，閥門的工作壓力可從1.3х10MPa到1000MPa 的超高壓，工作溫度從-269℃的較低溫到1430℃的高溫。閥門的控制可采用多種傳動(dòng)方式，如手動(dòng)、電動(dòng)、液動(dòng)、氣動(dòng)、蝸輪、電磁動(dòng)、電磁－－液動(dòng)、電－－液動(dòng)、氣－－液動(dòng)、正齒輪、傘齒輪驅(qū)動(dòng)等；可以在壓力、溫度或其它形式傳感信號(hào)的作用下，按預(yù)定的要求動(dòng)作，或者不依賴傳感信號(hào)而進(jìn)行簡(jiǎn)單的開啟或關(guān)閉，閥門依靠驅(qū)動(dòng)或自動(dòng)機(jī)構(gòu)使啟閉件作升降、滑移、旋擺或回轉(zhuǎn)運(yùn)動(dòng)，從而改變其流道面積的大小以實(shí)現(xiàn)其控制功能。</p><p style="text-indent:25px">幾種常用管道閥門的安裝：一.閘閥又稱閘板閥，是利用閘板來控制啟閉的閥門，通過改變橫斷面來調(diào)節(jié)管路流量和啟閉管路。閘閥多用于對(duì)流體介質(zhì)做全啟或全閉操作的管路。閘閥安裝一般無方向性要求，但不能倒裝。二.截止閥是利用閥瓣來控制啟閉的閥門。通過改變閥瓣與閥座的間隙，即改變通道截面的大小來調(diào)節(jié)介質(zhì)流量或截?cái)嘟橘|(zhì)通路。安裝截止閥必須注意流體的流向。安裝截止閥必須遵守的原則是，管道中的流體由下而上通過閥孔，俗稱“低進(jìn)高出”，不許裝反。脫脂完成后進(jìn)行酸洗鈍化，清洗劑不含磷。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="閥門哪家好,閥門" src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637408829445567113/3692372.png"></div><p style="text-indent:25px">減壓閥工作原理：減壓閥種類很多, 主要有活塞式和彈簧薄膜式兩種?；钊綔p壓閥是通過活塞的作用進(jìn)行減壓的閥門。彈簧薄膜式減壓閥, 是依靠彈簧和薄膜來進(jìn)行壓力平衡的。減壓閥作用減壓閥是將介質(zhì)壓力降低到一定數(shù)值的自動(dòng)閥門，一般閥后壓力要小于閥前壓力的50% 。試壓方法減壓閥的強(qiáng)度試驗(yàn)一般以單件試驗(yàn)后組裝，亦可組裝后試驗(yàn)。強(qiáng)度試驗(yàn)持續(xù)時(shí)間：DN<50mm的lmin；DN65～150mm的大于2min；DN>150mm的大于3min。波紋管與組件焊接后，應(yīng)用減壓閥后較高壓力的1．5倍、用空氣進(jìn)行強(qiáng)度試驗(yàn)。密封性試驗(yàn)時(shí)按實(shí)際工作介質(zhì)進(jìn)行。用空氣或水試驗(yàn)時(shí)，以公稱壓力的1．1倍進(jìn)行試驗(yàn)；用蒸汽試驗(yàn)時(shí)，以工作溫度下允許的較高工作壓力進(jìn)行。進(jìn)口壓力與出口壓力之差要求不小于0.2MPa。試驗(yàn)方法為：進(jìn)口壓力調(diào)定后，逐漸調(diào)節(jié)該閥的調(diào)節(jié)螺釘，使出口壓力在較大與較小值范圍內(nèi)能靈敏地、連續(xù)地變化，不得有停滯、卡阻現(xiàn)象。對(duì)蒸汽減壓閥，當(dāng)進(jìn)口壓力調(diào)走后，關(guān)閉閥后截?cái)嚅y，出口壓力為較高和較低值。調(diào)節(jié)閥類包括調(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)。南京礦用隔爆型閥門</p><p style="text-indent:25px">注脂后，一定封好注脂口。避免雜質(zhì)進(jìn)入，或注脂口處脂類氧化，封蓋要涂抹防銹脂，避免生銹。閥門哪家好</p><p style="text-indent:25px">閥門：按結(jié)構(gòu)種類分主要有：旋塞閥、閘閥、截止閥、球閥—用于開啟或關(guān)閉管道的介質(zhì)流動(dòng)。止回閥(包括底閥)—用于自動(dòng)防止管道內(nèi)的介質(zhì)倒流。節(jié)流閥—用于調(diào)節(jié)管道介質(zhì)的流量。蝶閥—用于開啟或關(guān)閉管道內(nèi)的介質(zhì)。也可作調(diào)節(jié)用。安全閥—用于鍋爐、容器設(shè)備及管道上，當(dāng)介質(zhì)壓力趔過規(guī)定數(shù)值時(shí)，能自動(dòng)排除過剩介質(zhì)壓力，保證生產(chǎn)運(yùn)行安全。減壓閥—用于自動(dòng)降低管道及設(shè)備內(nèi)介質(zhì)壓力。系使介質(zhì)經(jīng)過閥瓣的間隙時(shí)，產(chǎn)生阻力造成壓力損失，達(dá)到減壓目的。疏水器—用于蒸汽管道上自動(dòng)排除冷凝水，防止蒸汽損失或泄漏。按用途，根據(jù)閥門的不同用途可分：1. 開斷用：用來接通或切斷管路介質(zhì)，如截止閥、閘閥、球閥、蝶閥等。2. 止回用：用來防止介質(zhì)倒流，如止回閥。3. 調(diào)節(jié)用：用來調(diào)節(jié)介質(zhì)的壓力和流量，如調(diào)節(jié)閥、減壓閥。4. 分配用：用來改變介質(zhì)流向、分配介質(zhì)，如三通旋塞、分配閥、滑閥等。5. 安全閥：在介質(zhì)壓力超過規(guī)定值時(shí)，用來排放多余的介質(zhì)，保證管路系統(tǒng)及設(shè)備安全，如安全閥、事故閥。6. 他特殊用途：如疏水閥、放空閥、排污閥等。閥門哪家好</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2983842.html</p></div></div></div></div></div><div id="uyywu00" class="page-right twoColRt"><div id="2k0gm2q" class="box01 margin10 clearfix"><h3><a 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