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class="navbox"><div id="yht8jlx" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = "index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="xacegdv" class="twoCol"><div id="m88zspb" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_famenti/">閥門</a>?<a href="http://www.cdcfah.com/cp/third-famenti_qitafamenbd/">其他閥門</a>?秦安閥門哪家好甘肅誠禹惠物資供應(yīng)</p><div id="tryagiz" class="leftbox clearfix"><h1>秦安閥門哪家好甘肅誠禹惠物資供應(yīng)</h1><div id="wfc7s73" class="proBig"><div id="vzgt2ej" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637323278063457031/9608057.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="mbdag7c" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637323278063457031/9608057.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3qx7y4s" 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>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>秦安閥門哪家好,閥門</p><p><span>***更新：</span>2020-12-27 06:11:50</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="3ryvulc" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">甘肅誠禹惠物資有限公司</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: </span>0931-7840458</p><p><span>地址: </span>北濱河西路1226之27號(立達建材城A區(qū)11棟104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="2ahe8pm" class="page-proshow02"><p class="title">詳細說明</p><div id="jd2nkbn" class="box"><p><p> <span style="font-size:16px;">大型閥門的設(shè)置要求大型閥門的操作應(yīng)使用帶齒輪傳動機構(gòu)，設(shè)置時應(yīng)考慮傳動機構(gòu)所需空間位置。通常，閥門的尺寸大于下列等級的尺寸應(yīng)考慮使用帶齒輪傳動機構(gòu)的閥門。大型閥門應(yīng)在閥門的一側(cè)或兩側(cè)設(shè)置支架，該支架不應(yīng)設(shè)在檢修時需要拆卸的短管上，并考慮拆下閥門時不應(yīng)影響管道的支承。一般支架與閥門法蘭的距離應(yīng)大于300mm。大型閥門的安裝位置要有使用吊車的場地，或考慮設(shè)吊柱、吊梁。4水平管道上閥門的設(shè)置要求除工藝另有特殊要求外，一般水平管道上安裝的閥門手輪不得朝下，尤其是危險介質(zhì)管道上的閥門嚴禁手輪朝下，秦安閥門哪家好。閥門手輪的方位按下列順序確定：垂直向上；水平；垂直向上的左、右傾斜45°；垂直向下的左，秦安閥門哪家好、右傾斜45°；不得垂直向下。水平安裝的明桿式閥門，當閥門開啟時，閥</span><span style="font-size:16px;">桿不得影響通行，秦安閥門哪家好，特別是閥桿位于操作人員的頭部或膝部時更要注意。</span> 設(shè)計和制造閥門時應(yīng)力求降低其關(guān)閉力和關(guān)閉力矩。秦安閥門哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="秦安閥門哪家好,閥門" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637323278063457031/9608057.png"></div><p> <span style="font-size:16px;">有的閥門，除了必要的保護設(shè)施外，還要有旁路和儀表。安裝了旁路。便于疏水閥檢修。其他閥門，也有安裝旁路的。是否安裝旁路，要看閥門狀況，重要性和生產(chǎn)上的要求而定。填料更換庫存閥門，有的填料已不好使，有的與使用介質(zhì)不符，這就需要換填料。閥門制作廠無法考慮使用單位千門萬類的不同介質(zhì)，填料函內(nèi)總是裝填普通盤根，但使用時，必須讓填料于介質(zhì)相適應(yīng)。在更換填料時，要一圈一圈地壓入。每圈接縫以45度為宜，圈與圈接開180度。填料高度要考慮壓蓋繼續(xù)壓緊的余地，現(xiàn)時又要讓壓蓋下部壓填料室適當深度，此深度一般可為填料室總深度的10-20%。對于要求高的閥門，接縫角度為30度。圈與圈之間接縫錯開120度。除上述填料之外，還可根據(jù)具體情況，采用橡膠O形環(huán)（天然橡膠耐60攝氏度以下弱堿，丁晴橡膠耐80攝氏度以下油晶，氟橡膠耐150攝氏度以下多種腐蝕介質(zhì)）三件疊式聚四氟乙烯圈（耐200攝氏度以下強腐蝕介質(zhì)）尼龍碗狀圈（耐120攝氏度一下氨</span><span style="font-size:16px;">、堿）等成形填料。</span> 秦安閥門哪家好要求水流阻力小的部位（如水泵吸水管上），宜采用閘板閥。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="秦安閥門哪家好,閥門" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637323277959179688/6582898.png"></div><p> <span style="font-size:16px;">工業(yè)用的閥門的大量應(yīng)用是在瓦特發(fā)明蒸汽機之后，近二三十年來，由于石油、化工、電站、冶金、船舶、核能、宇航等方面的需要，對閥門提出更高的要求，促使人們研究和生產(chǎn)高參數(shù)的閥門，其工作溫度從**溫-269℃到高溫1200℃，甚至高達3430℃，工作壓力從超真空（1x10-1㎜Hg）到超高壓1460MPa，閥門通徑從1mm到600mm，甚至達到9750mm，閥門的材料從鑄鐵，碳素鋼發(fā)展到鈦及鈦合金，**度耐腐蝕鋼等，閥門的驅(qū)動方式從手動發(fā)展到電動、氣動、液動、程控、數(shù)控、遙控等。隨著現(xiàn)代工業(yè)的不斷發(fā)展，閥門需求量不斷增長，一個現(xiàn)代化的石油化工裝置就需要上萬只各式各樣的閥門，閥門使用量大。開閉頻繁，但往往由于制造、使用選型、維修不當，發(fā)生跑、冒、滴、漏現(xiàn)象，由此引起火焰、、中毒、燙傷事故，或者造成產(chǎn)品質(zhì)量低劣，能耗提高，設(shè)備腐蝕，物耗提高，環(huán)境污染，甚至造成停產(chǎn)等事故，已屢見不鮮，因此人們希望獲得高質(zhì)量的閥門，同時也要求提高閥</span><span style="font-size:16px;">門的使用，維修水平，這時對從事閥門操作人員，維修人員以及工程技術(shù)人員，提出新的要求，除了要精心設(shè)計、合理選用、正確操作閥門之外，還要及時維護、修理閥門，使閥門的“跑、冒、滴、漏”及各類事故降到比較低限度。</span> </p><p> <span style="font-size:16px;">閥門類型對密封解決方案的選擇有很大影響。升桿閘閥的開-關(guān)行程通常較長。如果操作較為頻繁，此類長行程線性運動會給密封帶來難度。多數(shù)情況下，此類閥門的操作頻度不會超過每星期一次，甚至每年只操作一次。盤根壓蓋、閥桿和填料函之間的間隙非常重要。如果縫隙較大，線性運動會導致部分密封元件被擠入，或拖曳雜質(zhì)微粒穿過密封元件。因此可在底部裝一個清潔環(huán)，有些情況下頂部也可安裝一個。截止閥較常采用升桿加旋轉(zhuǎn)運動模式，它的密封難度比較大，因為閥桿會同時在兩個方向上同時運動，盤根組會逐步接觸到整個閥桿的表面。閥桿如有任何偏心或失圓，都可能導致盤根元件破損并泄漏。和閘閥的情況相似，線性運動會拖曳雜質(zhì)微粒穿過密封元件，然后進入工藝流體。</span> 腐蝕是造成閥門損壞的重要元素之一。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="秦安閥門哪家好,閥門" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637323277979140625/9348747.png"></div><p> <span style="font-size:16px;">閥門的安裝位置要求閥門手輪的中心距操作面的高度為750～1500mm之間，適宜的高度為1200mm，不需要經(jīng)常操作的閥門安裝高度可達1500～1800mm。當安裝高度無法降低且又需要經(jīng)常操作時，設(shè)計時應(yīng)設(shè)置操作平臺或踏步。危險介質(zhì)的管道和設(shè)備上的閥門，不得在人的頭部高度范圍內(nèi)設(shè)置。閥門手輪的中心距操作面的高度超過1800mm時，宜設(shè)置鏈輪操作，鏈輪的鏈距地面宜為800mm左右，并應(yīng)設(shè)鏈輪掛鉤，將鏈子下端掛在附近的墻上或柱子上，以免影響通道的通行。設(shè)置在管溝內(nèi)的閥門，當打開溝蓋板能夠操作時，閥門的手輪不應(yīng)低于溝蓋板下300mm，當?shù)陀?00mm以下時，應(yīng)設(shè)閥門伸長桿，使其手輪在溝蓋板下100mm以內(nèi)。設(shè)置在管溝內(nèi)的閥門，需要在地面上操作時，或安裝在上一層樓面（平臺）下方的閥門，可設(shè)閥門伸長桿使其延伸至溝蓋板、樓板、平臺上面操作，伸長桿的手輪距操作面1200mm為宜。公稱直徑小于和等于DN40及螺紋連接的閥門不應(yīng)使用鏈輪或伸長桿進行操作，以免損壞閥門。通常情況下，應(yīng)盡量少用鏈輪或伸長桿操作閥門。布置在平臺周圍的閥門手輪距平臺邊緣的距離不宜大于450mm。當閥桿和手輪伸入平臺內(nèi)的上</span><span style="font-size:16px;">方且高度小于2000mm時，應(yīng)使其不影響操作人員的操作和通行，以免造成人身傷害。</span> 閥門在各類化工活動中十分常見，有“管道咽喉”之稱。嘉峪關(guān)閥門公司</p><p style="text-indent:25px">需要經(jīng)常操作、維修和更換的閥門，應(yīng)位于地面、平臺或梯子容易接近處。秦安閥門哪家好</p><p> <span style="font-size:16px;">閥桿在閥門開啟和關(guān)閉過程中，承受拉、壓和扭轉(zhuǎn)作用力，并與介質(zhì)直接接觸，同時和填料之間還有相對的摩擦運動。因此閥桿材料必須保證在規(guī)定溫度下有足夠的強度和沖擊韌性，有一定的耐腐蝕性和抗擦傷性，以及良好的工藝性。許多閥門具有方向性例如截止閥、節(jié)流閥、減壓閥、止回閥等，如果裝倒裝反，就會影響使用效果與壽命（如節(jié)流閥），或者根本不起作用（如減壓閥），甚至造成危險（如止回閥）。一般閥門，在閥體上有方向標志。萬一沒有，應(yīng)根據(jù)閥門工作原理，正確識別。截止閥的閥腔左右不對稱，流體要讓其由下而上通過閥口，這樣流體阻力?。ㄓ尚螤钏鶝Q定），開啟省力（因介質(zhì)壓力向上），關(guān)閉后介質(zhì)不壓填料，便于檢修，這就是截止閥為什么不可安反的道理。其它閥門也有各自的特性。</span> 秦安閥門哪家好</p><p style="text-indent:25px">甘肅誠禹惠物資有限公司致力于機械及行業(yè)設(shè)備，是一家服務(wù)型的公司。公司業(yè)務(wù)涵蓋誠禹惠閥門，球閥批發(fā)，閥門批發(fā)，蝶閥批發(fā)等，價格合理，品質(zhì)有保證。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造機械及行業(yè)設(shè)備良好品牌。甘肅誠禹惠物資秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實”的經(jīng)營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2582942.html</p></div></div></div></div></div><div id="ysmdxja" class="page-right twoColRt"><div id="7qmjqxe" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="hwyqsf2" class="recomPic likePro"><a 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