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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637316412136728515/4689270.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="k8ycywa" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gscyhwz/637316412136728515/4689270.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="q8maee2" 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)品關鍵詞：</span>永昌焊接球閥市場報價,焊接球閥</p><p><span>***更新：</span>2020-08-27 02:19:15</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="oawk08c" 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="aswky08" class="page-proshow02"><p class="title">詳細說明</p><div id="a0qwa8s" class="box"><p><p> <span style="font-size:16px;">球閥的類別：(1)浮動球閥。球體有一定浮動量，在介質壓力下，可向出口端位移，并壓緊密封圈。這種球閥結構簡單，密封性好，永昌焊接球閥市場報價。但由于球體浮動，將介質壓力全部傳遞給密封圈，使密封圈負擔很重；考慮到密封圈承載能力的限制，又考慮到大型球閥如采用這種結構形式，勢必操作費力，永昌焊接球閥市場報價，所以只用于中，永昌焊接球閥市場報價、低壓小口徑閥門。化工系統(tǒng)的酸堿等腐蝕性介質的裝置和管路系統(tǒng)中，宜選用奧氏體不銹鋼制造的、聚四氟乙烯為閥座密封圈的全不銹鋼球閥。冶金系統(tǒng)、電力系統(tǒng)、石化裝置、城市供熱系統(tǒng)中的高溫介質的管路系統(tǒng)或裝置上，可選用金屬對金屬密封球閥。需要進行流量調節(jié)時，可選用蝸輪蝸桿傳動的、氣動或電動的帶Ｖ形開口的調節(jié)球閥。(2)固定球閥。球體是固定的，不能移動。通常上、下支承處裝有滾動軸承或滑動軸</span><span style="font-size:16px;">承，開閉較輕便。這種結構適合于制作高壓大口徑閥門。</span> 球閥主要起切斷、分配和改變介質流動方向的作用，設計成V型開口的球閥還可以做調節(jié)流量用。永昌焊接球閥市場報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="永昌焊接球閥市場報價,焊接球閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637316412136728515/4689270.png"></div><p> <span style="font-size:16px;">球閥特點：1.具有比較低的流阻（實際上為零）。2.在無潤滑劑時工作不會卡住，故能可靠地應用與腐蝕性介質和低沸點液體中。3.在較大地壓力和溫度范圍內，能實現(xiàn)***密封。4.可實現(xiàn)超快速啟閉，某些結構的啟閉時間*為，以保證能用于試驗臺的自動化系統(tǒng)中?？焖賳㈤]閥門時，操作無沖擊。5.球型關閉件能在位置上自動定位。6.工作介質在雙面上密封可靠。7.在全開和全閉時，球體和閥座的密封面與介質隔離，因此高速通過閥門的介質不會引起密封面的侵蝕。8.結構緊湊、重量輕，可以認為它適用于低溫介質系統(tǒng)合理的閥門結構。9.閥體對稱，尤其時焊接閥體結構，能很好地承受來自管道的應力。10.關閉件能承受關閉時的高壓差。11.全焊接閥體的球閥，可以直埋于地下，使閥門內件不受侵蝕，比較高使用壽命可達3</span><span style="font-size:16px;">0年，是石油、天然氣管線**理想的閥門。</span> 海南州焊接球閥市場報價球閥的電動執(zhí)行機構，又名球閥電動執(zhí)行器，球閥電動頭。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="永昌焊接球閥市場報價,焊接球閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637316412079941406/7207639.png"></div><p> <span style="font-size:16px;">球閥的工作原理：A、開啟過程1在關閉位置，球體受閥桿的機械施壓作用，緊壓在閥座上。2當逆時針轉動手輪時，閥桿則反向運動，其底部角形平面使球體脫開閥座。3閥桿繼續(xù)提升，并與閥桿螺旋槽內的導銷相互作用，使球體開始無摩擦地旋轉。4直至到全開位置，閥桿提升到極限位置，球體旋轉到全開位置。B、關閉過程1關閉時，順時針旋轉手輪，閥桿開始下降并使球體離開閥座開始旋轉。2繼續(xù)旋轉手輪，閥桿受到嵌于其上螺旋槽內的導銷的作用，使閥桿和球體同時旋轉90°。3快要關閉時，球體已在與閥座無接觸的情況下旋轉了90°。4手輪轉動的</span><span style="font-size:16px;">幾圈，閥桿底部的角形平面機械地楔向壓迫球體，使其緊密地壓在閥座上，達到完全密封。密封球閥禹普通球閥的區(qū)別。</span> </p><p> <span style="font-size:16px;">固定球閥的優(yōu)勢1、密封緊急注脂救護：由于介質中的異物或火災造成閥座密封意外失效，注脂閥提供了與注脂的快速連接，方便快捷地將密封脂注入到閥座密封部位，緩解泄漏。2、可靠的閥桿密封和低操作力矩：除了設置標準密封套圈外，填料壓蓋上也設置了“O”型密封圈，雙重密封保證了閥桿密封的可靠性；增設的石墨填料和密封脂注入使火災后的閥桿泄漏降至比較低。閥桿滑動軸承和止推軸承使閥門操作輕便。3、全通徑或縮徑：可根據(jù)需要選用全通徑或縮徑結構。全通徑閥門流量孔徑與管線內徑一致，便于管線清掃。4、閥桿可加長：根據(jù)安裝或操作的需要，可對閥門閥桿進行加長。加長桿球閥，特別適用于城市煤氣等需要埋地鋪設管線的場合。加長閥桿尺寸按客戶需要確定。5、操作靈活：采用具有小摩擦系數(shù)和良好自潤滑性的閥座和閥桿軸承，**地減少了閥門的操作扭矩。因此即使在沒有提供密封潤滑脂的情形下，也能夠長期靈活自如地對閥門進行操作。</span> 冶金系統(tǒng)中的氧氣管路系統(tǒng)中，宜選用經(jīng)過嚴格脫脂處理，法蘭連接的固定球球閥。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="永昌焊接球閥市場報價,焊接球閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637316412013740234/445344.png"></div><p> <span style="font-size:16px;">保溫球閥優(yōu)點1．流體阻力小，其阻力系數(shù)與同長度的管段相等。2．結構簡單、體積小、重量輕。3．緊密可靠，目前球閥的密封面材料使用塑料、密封性好，在真空系統(tǒng)中也已使用。4．操作方便，開閉迅速，從全開到全關只要旋轉90°，便于遠距離的控制。5．維修方便，球閥結構簡單，密封圈一般都是活動的，拆卸更換都比較方便。6．在全開或全閉時，球體和閥座的密封面與介質隔離，介質通過時，不會引起閥門密封面的侵蝕。7．適用范圍廣，通徑從小到幾毫米，大到幾米，從高真空至高壓力都可應用。球旋轉90度時，在進、出口處應全部呈現(xiàn)球面，從而截斷流動。保溫球閥是一種比較新型的球閥類別，它有著自身結構所獨有的一些優(yōu)越性，如開關無摩擦，密封不易磨損，啟閉力矩小。這樣可減小所配執(zhí)行器的規(guī)格。配以多回轉電動執(zhí)行機構，可實現(xiàn)對介質的調節(jié)和嚴密切斷。***適用于石油、化工、城市給排水等要求嚴格切斷的工況。</span> 在石油、石油化工、化工、電力、城市建設中，工作溫度在200度以上的管路系統(tǒng)可選用金屬對金屬密封的球閥。永昌焊接球閥市場報價</p><p style="text-indent:25px">城市煤氣和天然氣的管路上，選用法蘭連接和內螺紋連接的浮動球閥。永昌焊接球閥市場報價</p><p> <span style="font-size:16px;">鍛鋼低溫閥門要考慮在今后油品順序輸送中具體問題具體對待。鑒于柴油與汽油不同的品質，應考慮汽油的沖刷和分解能力。在以后閥門操作，遇到汽油段作業(yè)時，及時補充潤滑脂，防止磨損情況發(fā)生。注脂時，不要忽略閥桿部位的注脂。閥軸部位有滑動軸套或填料，也需要保持潤滑狀態(tài)，以減小操作時的摩擦阻力，如不能確保潤滑，則電動操作時扭矩加大磨損部件，手動操作時開關費力。有些球閥閥體上標有箭頭，如果沒有附帶英文FIOW字跡，則為密封座作用方向，不作為介質流向參考，閥門自泄方向相反。通常情況下，雙座密封的球閥具有雙向流向。鍛鋼低溫球閥的主要特點：在全開或全閉時球體和閥座的密封面與介質隔離，介質通過時，不會引起閥門密封面的侵蝕;不銹鋼球閥適用范圍廣,通徑從小到幾毫米,大到幾米,從</span><span style="font-size:16px;">高真空至高壓力都可應用。</span> 永昌焊接球閥市場報價</p><p style="text-indent:25px">甘肅誠禹惠物資有限公司位于甘肅省蘭州市，創(chuàng)立于2019-08-02。甘肅誠禹惠物資致力于為客戶提供質量的球閥，彈性座封閘閥，快閉式止回閥，蝶閥，一切以用戶需求為中心，深受廣大客戶的歡迎。公司秉持誠信為本的經(jīng)營理念，在機械及行業(yè)設備深耕多年，以技術為先導，以自主產(chǎn)品為重點，發(fā)揮人才優(yōu)勢，打造機械及行業(yè)設備質量品牌。公司秉承“客戶為尊、服務為榮、創(chuàng)意為先、技術為實”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/1053836.html</p></div></div></div></div></div><div id="4kmgmag" class="page-right twoColRt"><div id="qo0ouou" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="oauym8q" class="recomPic 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