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id="3zbtf3x" class="proBig"><div id="87wt3ie" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864801250000/1537013.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ynp3tls" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864801250000/1537013.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3q8acug" 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>新疆維吾爾自治區(qū)</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>喀什高性能蝶閥,閥</p><p><span>***更新：</span>2020-10-26 07:14:05</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="b3axj3b" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">新疆遠大通用閥門有限公司</a></p><p><span>聯(lián)系人：</span>李嘉豪</p><p><span>郵箱: </span>1183099099@qq.com</p><p><span>電話: </span>18999955968</p><p><span>傳真: </span>0991_6877477</p><p><span>網(wǎng)址: </span>http://www.xjyuanda.com</p><p><span>手機: </span>0991-6877477</p><p><span>地址: </span>烏魯木齊市高新技術(shù)產(chǎn)業(yè)開發(fā)區(qū)（新市區(qū)）清水街213號</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="mldfc2z" class="page-proshow02"><p class="title">詳細說明</p><div id="zi732xz" class="box"><p><p> 會明顯地降低螺栓的負荷，對受力很大的法蘭連接就可能產(chǎn)生泄漏。3.焊接連接這種連接適用于各種壓力和溫度，在較苛刻的條件下使用時，比法蘭連接更為可靠，喀什高性能蝶閥。但是焊接連接的閥門拆卸和重新安裝都比較困難，所以它的使用限于通常能長期可靠地運行，或使用條件苛刻、溫度較高的場合。如火力發(fā)電站、核能工程、乙烯工程的管道上。公稱通徑在50mm以下的焊接閥門通常具有焊接插口來承接帶平面端的管道。由于承插焊在插口與管道間形成縫隙，因而有可能使縫隙受到某些介質(zhì)的腐蝕，同時管道的振動會使連接部位疲勞，因此承插焊接的使用受到一定的限制。在公稱條件較大，使用條件苛刻，溫度較高的場合，閥體常采用坡口對焊連接，同時，對焊縫有嚴格要求。三，喀什高性能蝶閥、根據(jù)介質(zhì)性能選用閥門返回頁首許多介質(zhì)都有一定的腐蝕性；同一種介質(zhì)，隨著溫度、壓力和濃度的變化，其腐蝕性也不同。因此，應(yīng)根據(jù)材料耐腐蝕性能，選擇適宜于該介質(zhì)的閥門。1.鑄鐵閥門⑴灰鑄鐵閥門適用于水，喀什高性能蝶閥、蒸汽、石油產(chǎn)品、氨能在絕大多數(shù)的醇、醛、醚、酮、脂等腐蝕性較低的介質(zhì)中工作。它不適于鹽酸、硝酸等介質(zhì)。但能用于濃***中，這是因為濃***能對其金屬表面產(chǎn)生一層鈍化膜。以阻止?jié)?**對鑄鐵的腐蝕。烏魯木齊遙控浮球閥批發(fā) ?？κ哺咝阅艿y</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="喀什高性能蝶閥,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864801250000/1537013.jpg"></div><p> 一、根據(jù)流量特性選用閥門閥門啟閉件及閥門流道的形狀使閥門具備一定的流量特性。在選擇閥門時，必須考慮到這一點。1.截斷和接通介質(zhì)用閥門通常選擇流阻較小、流道為直通式的閥門。這類閥門有閘閥、截止閥、柱塞閥。向下閉合式閥門，由于流道曲折，流阻比其它閥門高，故較少選用。但是，在允許有較高流阻的場合，也可選用閉合式閥門。2.控制流量用的閥門通常選擇易于調(diào)節(jié)流量的閥門。如調(diào)節(jié)閥、節(jié)流閥、柱塞閥，因為它的閥座尺寸與啟閉件的行程之間成正比例關(guān)系。旋轉(zhuǎn)式（如旋塞閥、球閥、蝶閥）和撓曲閥體式（夾管閥、隔膜閥）閥門也可用于節(jié)流控制，但通常*在有限的閥門口徑范圍內(nèi)適用。在多數(shù)情況下，人們通常采用改變截止閥的閥瓣形狀后作節(jié)流用。應(yīng)該指出，用改變閘閥或截止閥的開啟高度來實現(xiàn)節(jié)流作用是極不合理的。因為，管路中介質(zhì)在節(jié)流狀態(tài)***速很高，密封面容易被沖刷磨損，失去切斷密封作用，同理，用節(jié)流閥作為切斷裝置也是不合理的。3.換向分流用閥門根據(jù)換向分流需要，這種閥可有三個或者更多的通道，適宜于選用旋塞閥和球閥。大部分換向分流用的閥門都選用這類閥門。在某些情況下，其它類型的閥門，用兩只或更多只適當?shù)叵嗷ミB接起來。新疆控制閥門廠家烏魯木齊減壓穩(wěn)壓閥批發(fā)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="喀什高性能蝶閥,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864807900391/6765207.jpg"></div><p> 【解】閥體材料：已知蒸汽壓力，溫度為350℃，閥體材料按表2-3a可選用球鑄鐵或質(zhì)量碳素鋼。但考慮到350℃已達到球墨鑄鐵的**高使用溫度，為了安全使用，應(yīng)選用質(zhì)量碳素鋼（WCB、ZG230-450）閥門。公稱壓力：根據(jù)質(zhì)量碳素鋼和蒸汽的壓力和溫度，由表1-3查出，閥門的公稱壓力PN=。密封面材料：根據(jù)閥門公稱壓力和介質(zhì)溫度，按表2-3b密封面材料應(yīng)選用不銹鋼。驅(qū)動方式：根據(jù)給定的公稱通徑DN100mm，因管徑較小，故啟閉時所需力矩不大，本例未提出操作方式的特殊要求，故選用手輪驅(qū)動。連接形式：根據(jù)給定的蒸汽壓力和溫度，管材應(yīng)采用無縫鋼管，而無縫鋼管應(yīng)采用焊接。但為了便于閥門的裝卸和維修，其連接形式不宜采用焊接，應(yīng)采用法蘭連接。閥門類別與型號：根據(jù)介質(zhì)特性、公稱壓力與公稱通徑，可選用截止閥或閘閥。因在同一壓力等級下，閘閥的價格比截止閥高，故宜優(yōu)先選用截止閥。但在截止閥參數(shù)表中，沒有公稱壓力，故本例仍選用閘閥。按閘閥參數(shù)表中選用閥門型號Z40H-25DN100。【例2】某油品管道，其介質(zhì)工作壓力為，溫度為340℃，管子內(nèi)徑為107mm；試選用適合的閉路閥門。【解】閥體材料：根據(jù)介質(zhì)特性和參數(shù)，按表2-3a可選用質(zhì)量碳素鋼（WCB、ZG230-450）。</p><p> 表壓）3～44～85過熱蒸汽DN＞200DN=200～100DN＜10040～6030～5020～40氯氣體液體10～25氯化氫氣體液體20低壓蒸汽ρ＜（絕壓）15～20中壓蒸汽Ρ=～（絕壓）20～40液氨真空Ρ≤（表壓）Ρ≤（表壓）～～～高壓蒸汽Ρ=～（絕壓）40～60壓縮氣體真空Ρ≤（表壓）Ρ=～（表壓）Ρ=～（表壓）Ρ=～（表壓）Ρ=～（表壓）Ρ=～（表壓）5～108～1210～2010～158～123～6～3氫氧化鈉濃度0～30%濃度30%～505濃度50%～73%2***濃度88%～93%濃度93%～**鹽酸氧氣Ρ=0～（表壓）Ρ=～（表壓）Ρ=～（表壓）Ρ=～（表壓）Ρ=～（表壓）5～107～84～64～53～4水及粘度相似液體Ρ=～（表壓）Ρ≤（表壓）Ρ≤）Ρ≤20～30（表壓）熱網(wǎng)循環(huán)水、冷卻水壓力回水無壓回水～2～32～32～～1～2～煤氣～15半水煤氣Ρ=～（表壓）10～15天然氣30自來水主管Ρ=（表壓）支管Ρ=（表壓）～1～氮氣Ρ=5～10（絕壓）15～25氨氣真空Ρ＜（表壓）Ρ＜（表壓）Ρ≤2（表壓）15～258～1510～203～8鍋爐給水＞3蒸汽冷凝水～冷凝水自流～過熱水2乙炔水305～6海水、微堿水Ρ＜（表壓）～注：DN值的單位為：mm；Ρ值的單位為：MPa。閘閥的阻力系數(shù)小，*在～、；口徑大的閘閥，阻力系數(shù)為～。阿勒泰耐腐蝕閥門價格；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="喀什高性能蝶閥,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864797431641/5717140.jpg"></div><p> 標準：GB、HB、JB國標、API美標、JIS日標、DIN德標。產(chǎn)品應(yīng)用于水處理設(shè)備、化工設(shè)備、石化設(shè)備、石油設(shè)備、造紙設(shè)備、采礦設(shè)備、電力設(shè)備配套、液化氣設(shè)備、食品設(shè)備、制藥設(shè)備、給排水設(shè)備、市政閥門、機械設(shè)備閥門、電子工業(yè)閥門，城建閥門、工業(yè)管道閥門、通用零部件、工業(yè)設(shè)備、消防暖通、中央空調(diào)、過濾設(shè)備、冶金設(shè)備、輕紡設(shè)備.環(huán)保設(shè)備等領(lǐng)域。上海左武閥門以良好的信譽報答廣大用戶對閥門的厚愛、秉承一切為了用戶滿意的營銷理念、將不斷應(yīng)用新技術(shù)、新工藝、積極開發(fā)新產(chǎn)品、降低成本、提高質(zhì)量。為廣大的用戶提供更質(zhì)量的產(chǎn)品和更完善的售后服務(wù)，為閥門工業(yè)而努力奮斗！公司本著“為人誠實守信，處事實事求是”的道理，一切站在客戶的立場來處理問題。以質(zhì)量的產(chǎn)品，合理的價位。新疆緩閉止回閥生產(chǎn)廠家?？κ哺咝阅艿y</p><p style="text-indent:25px">新疆數(shù)字鎖定平衡閥批發(fā) 。喀什高性能蝶閥</p><p> 閥門按作用和用途（一）關(guān)斷閥這類閥門是起開閉作用的。常設(shè)于冷、熱源進、出口，設(shè)備進、出口，管路分支線（包括立管）上，也可用作放水閥和放氣閥。常見的關(guān)斷閥有閘閥、截止閥、球閥和蝶閥等。閘閥可分為明桿和暗桿、單閘板與雙閘板、楔形閘板與平行閘板等。[1]（二）止回閥這類閥門用于防止介質(zhì)倒流，利用流體自身的動能自行開啟，反向流動時自動關(guān)閉。常設(shè)于水泵的出口、疏水器出口以及其他不允許流體反向流動的地方。止回閥分旋啟式、升降式和對夾式三種。對于旋啟式止回閥，流體只能從左向右流動時，反向流動時自動關(guān)閉。對于升降式止回閥，流體從左向右流動時，閥芯抬起，形成通路，反向流動時閥芯被壓緊到閥座上而被關(guān)閉。[1]（三）調(diào)節(jié)閥閥門前后壓差一定，普通閥門的開度在較大范圍內(nèi)變化時，其流量變化不大，而到某一開度時，流量急劇變化，即調(diào)節(jié)性能不佳。調(diào)節(jié)閥可以按照信號的方向和大小，改變閥芯行程來改變閥門的阻力數(shù)，從而達到調(diào)節(jié)流量目的的閥門。[1]（四）真空類真空類包括真空球閥、真空擋板閥、真空充氣閥、氣動真空閥等。（五）特殊用途類特殊用途類包括清管閥、放空閥、排污閥、排氣閥、過濾器等。排氣閥是管道系統(tǒng)中必不可少的輔助元件。喀什高性能蝶閥</p><p style="text-indent:25px">新疆遠大通用閥門有限公司致力于機械及行業(yè)設(shè)備，以科技創(chuàng)新實現(xiàn)***管理的追求。遠大通用閥門作為閥門的研發(fā)、銷售、維修；管網(wǎng)閥門集控系統(tǒng)的設(shè)計、安裝、調(diào)試。維修；管道配件、五金交電、標準件、密封件、液壓件、法蘭彎頭、水暖配件、消防器材、壓力容器、鍋爐及配件、電線電纜、電工電料、電動工具、電子產(chǎn)品、化工產(chǎn)品、石油制品、防水防腐保溫材料、工程機械設(shè)備及配件、儀器儀表、機電設(shè)備、電腦及配件、辦公用品、勞保用品、農(nóng)齋產(chǎn)品、環(huán)保設(shè)備、新能源設(shè)備、裝飾裝潢材料銷售：貨物與技術(shù)的進出口業(yè)務(wù)。(依法須經(jīng)批準的項目，經(jīng)相關(guān)部門批準后，方可開展經(jīng)營活動）的企業(yè)之一，為客戶提供良好的閥門，，，。遠大通用閥門不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導，以產(chǎn)品為平臺，以應(yīng)用為重點，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價值，提供更優(yōu)服務(wù)。遠大通用閥門始終關(guān)注自身，在風云變化的時代，對自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使遠大通用閥門在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1714022.html</p></div></div></div></div></div><div id="r8q2zb7" class="page-right twoColRt"><div id="47bkbae" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="azbyv28" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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