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src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318945207773437/7066248.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hykpwyv" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318945207773437/7066248.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ga3xeln" 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>玉樹球閥聯(lián)系方式,球閥</p><p><span>***更新：</span>2021-01-17 12:14:25</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="mgdxj8z" 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(jī): </span>0931-7840458</p><p><span>地址: </span>北濱河西路1226之27號(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="ed37xu7" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="nm34qsu" class="box"><p><p> <span style="font-size:16px;">球閥是由閥體和閥座構(gòu)成，雙倍運(yùn)動閥座是當(dāng)中腔壓力大于出口壓力時，玉樹球閥聯(lián)系方式，使閥座壓緊球體，密封圈產(chǎn)生彈塑性變形實(shí)現(xiàn)密封。該閥使用時，一旦上游密封意外失效產(chǎn)生泄漏，下游閥座實(shí)現(xiàn)密封，玉樹球閥聯(lián)系方式。雙級密封式閥座對于承受較大密封力的采用橡膠和塑料組合密封結(jié)構(gòu)，橡膠主要起密封作用，玉樹球閥聯(lián)系方式，塑料起支承和輔助密封雙重作用。內(nèi)調(diào)節(jié)式閥座是閥座與球體之間的密封比壓靠內(nèi)調(diào)整螺母調(diào)節(jié)，其優(yōu)點(diǎn)是沒有向外的泄漏點(diǎn)。外調(diào)節(jié)式閥座是閥座與球體之間的密封比壓靠外部調(diào)節(jié)螺塞壓緊楔塊使伸縮套產(chǎn)生位移進(jìn)行調(diào)整。波紋管式閥座一般采用電子束焊或氬弧焊與閥座和導(dǎo)向套相連。設(shè)計時，應(yīng)保證閥座密封中心小于波紋管中徑，此結(jié)構(gòu)具有密封性可靠，彈性補(bǔ)償范圍大，三維空間靈活的特點(diǎn)。</span> 成品油的輸送管線和貯存設(shè)備，選用法蘭連接的球閥。玉樹球閥聯(lián)系方式</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="玉樹球閥聯(lián)系方式,球閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318945207773437/7066248.png"></div><p> <span style="font-size:16px;">球閥的主要功能是切斷或接通管道中的流體通道。球閥的工作原理是借助驅(qū)動裝置在閥桿上端施加一定的轉(zhuǎn)矩傳給球體，使其旋轉(zhuǎn)90°，完成開啟或關(guān)閉閥門的動作。球閥閥座的密封原理依其結(jié)構(gòu)而異，常用的閥座結(jié)構(gòu)可分為固定閥座浮動球體與浮動閥座固定球體兩大類。當(dāng)閥座固定球體浮動時，在流體壓力作用下球體在流體流動方向產(chǎn)生位移，使它與閥后閥座密封而更緊密地接觸，即在該密封面上的比壓增大，形成單面密封，同時，閥前閥座密封面上的比壓相應(yīng)減小，往往不保證密封。當(dāng)閥座浮動球體固定時，流體壓力不能使球體產(chǎn)生位移，而是閥座借助于彈簧或流體推力壓向球體，建立密封比壓。普通閥座的特點(diǎn)是在預(yù)緊力或流體壓力作用下閥座與球體壓緊，并使閥座材料產(chǎn)生彈塑性變形而達(dá)到密封，其密封效果取決于閥座在流體壓力或預(yù)緊力的作用下補(bǔ)償球體圓度和表面微觀不平度的能力。因此，閥座與球體之間必須具有足夠大的密封比壓。</span> 玉樹球閥聯(lián)系方式安裝完畢后，啟動球閥開、關(guān)數(shù)次，應(yīng)該動作靈活，受力均勻，球閥工作正常。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="玉樹球閥聯(lián)系方式,球閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318945414521484/1013844.png"></div><p> <span style="font-size:16px;">球閥不*結(jié)構(gòu)簡單、密封性能好，而且在一定的公稱通經(jīng)范圍內(nèi)體積較小、重量輕、材料耗用少、安裝尺寸小，并且驅(qū)動力矩小，操作簡便、易實(shí)現(xiàn)快速啟閉，是近十幾年來發(fā)展快的閥門品種之一。特別是在美、日、德、法、意、西、英等工業(yè)發(fā)達(dá)國家，球閥的使用非常多，使用品種和數(shù)量仍在繼續(xù)擴(kuò)大，并向高溫、高壓、大口經(jīng)、高密封性、長壽命、優(yōu)良的調(diào)節(jié)性能以及一閥多功能方向發(fā)展，其可靠性及其他性能指標(biāo)均達(dá)到較高水平，并已部分取代閘閥、截止閥、調(diào)節(jié)閥。隨著球閥的技術(shù)進(jìn)步，在可以預(yù)見的短時見內(nèi)，特別是在石油天然氣管線上、煉油裂解裝置上以及核工業(yè)上將有更***的應(yīng)用。此外，在其他工業(yè)中的大中型口徑、中低壓力領(lǐng)域，球閥也將會成為主導(dǎo)的閥門類型之一。</span> </p><p> <span style="font-size:16px;">球閥的維修非金屬零件清洗后應(yīng)立即從清洗劑中取出，不得長時間浸泡。清洗后需待被洗壁面清洗劑揮發(fā)后（可用未浸清洗劑的綢布擦）進(jìn)行裝配，但不得長時間擱置，否則會生銹、被灰塵污染。新零件在裝配前也需清洗干凈。使用潤滑脂潤滑。潤滑脂應(yīng)與球閥金屬材料、橡膠件、塑料件及工作介質(zhì)均相容。工作介質(zhì)為燃?xì)鈺r，可用例如特221潤滑脂。在密封件安裝槽的表面上涂一薄層潤滑脂，在橡膠密封件上涂一薄層潤滑脂，閥桿的密封面及摩擦面上涂一薄層潤滑脂。裝配時應(yīng)不允許有金屬碎屑、纖維、油脂（規(guī)定使用的除外）灰塵及其它雜質(zhì)、異物等污染、粘附或停留在零件表面上或進(jìn)入內(nèi)腔。彈性閥座借助于彈性元件，如金屬彈簧架和彈簧等，在預(yù)緊力或流體壓力下產(chǎn)生彈性變形，以補(bǔ)償溫差、壓力和磨損等外界條件變化對球體密封性能的影響。彈簧組合式閥座是沿閥門通道橫向截面圓周均布一組壓縮彈簧或*用一只碟型彈簧的推力，始終保持閥座壓緊球體而達(dá)到預(yù)緊狀態(tài)。</span> 球閥只需要用旋轉(zhuǎn)90度的操作和很小的轉(zhuǎn)動力矩就能關(guān)閉嚴(yán)密。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="玉樹球閥聯(lián)系方式,球閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318945377773437/4769067.png"></div><p> <span style="font-size:16px;">由于球閥通常用橡膠、尼龍和聚四氟乙烯作為閥座密封圈材料，因此它的使用溫度受到閥座密封圈材料的限制。球閥主要的閥座密封圈材料就是聚四氟乙烯（PTFE），它對幾乎所有的化學(xué)物質(zhì)都是惰性的，且具有摩擦系數(shù)小、性能穩(wěn)定、不易老化、溫度適用范圍廣和密封性能優(yōu)良的綜合性特點(diǎn)。但聚四氟乙烯的物理特性，包括較高的膨脹系數(shù)，對冷流的敏感性和不良的熱傳導(dǎo)性，要求閥座密封的設(shè)計必須圍繞這些特性進(jìn)行。閥座密封的塑性材料也包括填充聚四氟乙烯、尼龍和其他許多材料。但是，當(dāng)密封材料變硬時，密封的可靠性就要受到破壞，特別是在低壓差的情況下。此外，像丁青橡膠這樣的合成橡膠也可用作閥座密封材料，但它所適用的介質(zhì)和使用的溫度范圍藥受到限制。另外，如果介質(zhì)不潤滑，使用合成橡膠容易卡住球</span><span style="font-size:16px;">體。</span> 球閥法蘭與管線法蘭間按管路設(shè)計要求裝上密封墊。玉樹球閥聯(lián)系方式</p><p style="text-indent:25px">冶金系統(tǒng)中的氧氣管路系統(tǒng)中，宜選用經(jīng)過嚴(yán)格脫脂處理，法蘭連接的固定球球閥。玉樹球閥聯(lián)系方式</p><p> <span style="font-size:16px;">球閥適用于低溫、高壓、粘度大的介質(zhì)。大多數(shù)球閥可用于帶懸浮固體顆粒的介質(zhì)中，依據(jù)密封的材料要求也可用于粉狀和顆粒狀的介質(zhì)；全通道球閥不適用于流量調(diào)節(jié)，但適用于要求快速啟閉的場合，便于實(shí)現(xiàn)事故緊急切斷；通常在密封性能嚴(yán)格、磨損、縮口通道、啟閉動作迅速、高壓截止（壓差大）、低噪音、有氣化現(xiàn)象、操作力矩小、流體阻力小的管路中，推薦使用球閥；球閥適用于輕型結(jié)構(gòu)、低壓截止、腐蝕性介質(zhì)中；球閥還是低溫、深冷介質(zhì)的**理想閥門，低溫介質(zhì)的管路系統(tǒng)和裝置上，宜選用加上閥蓋的低溫球閥；選用浮動球球閥時其閥座材料應(yīng)承接球體和工作介質(zhì)的載荷，大口徑的球閥在操作時需要較大的力，DN≥200mm的球閥應(yīng)選用蝸輪傳動形式；固定球球閥適用于較大口徑及壓力較高的場合；</span><span style="font-size:16px;">另外，用于工藝劇毒物料、可燃介質(zhì)管道的球閥，應(yīng)具有防火、防靜電結(jié)構(gòu)。</span> 玉樹球閥聯(lián)系方式</p><p style="text-indent:25px">甘肅誠禹惠物資有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家服務(wù)型公司。甘肅誠禹惠物資致力于為客戶提供良好的誠禹惠閥門，球閥批發(fā)，閥門批發(fā)，蝶閥批發(fā)，一切以用戶需求為中心，深受廣大客戶的歡迎。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(jī)械及行業(yè)設(shè)備良好品牌。甘肅誠禹惠物資立足于全國市場，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2888312.html</p></div></div></div></div></div><div id="v3qif8v" class="page-right 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