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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>新疆黃銅絲扣排氣閥,閥</p><p><span>***更新：</span>2021-01-07 14:11:39</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="yudo3i8" 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="m2yhvri" class="page-proshow02"><p class="title">詳細說明</p><div id="wzq83ex" class="box"><p><p> 閥門密封要求閥門的密封性能是指閥門各密封部位阻止介質(zhì)泄漏的能力，它是閥門重要的技術(shù)性能指標。閥門的密封部位有三處：啟閉件與閥座兩密封面間的接觸處；填料與閥桿和填料函的配合處；閥體與閥蓋的連接處，新疆黃銅絲扣排氣閥。其中前一處的泄漏叫做內(nèi)漏，也就是通常所說的關(guān)不嚴，它將影響閥門截斷介質(zhì)的能力。對于截斷閥類來說，內(nèi)漏是不允許的。后兩處的泄漏叫做外漏，即介質(zhì)從閥內(nèi)泄漏到閥外。外漏會造成物料損失，污染環(huán)境，嚴重時還會造成。對于易燃易爆、或有放射的介質(zhì)，外漏更是不能允許的，因而閥門必須具有可靠的密封性能。閥門其他要求1、裝配完成的閥門用氮氣至少吹掃1分鐘。2、氣密試驗必須是用純凈的氮氣，新疆黃銅絲扣排氣閥。3、氣密試驗合格后進行包封，用干凈聚乙烯帽密封，聚乙烯帽使用前應(yīng)用有機溶劑浸泡，擦拭干凈。4、然后用真空袋進行密封。5、后裝箱。6、運輸過程中要采取措施保證包封不破損。閥門清洗步驟編輯閥門的零部件在組裝前必須經(jīng)過以下過程處理：1、根據(jù)加工要求，新疆黃銅絲扣排氣閥，部分零部件需要做拋光處理，表面不能有加工毛刺等；2、所有零部件進行脫脂處理；3、脫脂完成后進行酸洗鈍化，清洗劑不含磷；4、酸洗純化后用純凈水沖洗干凈，不能有藥劑殘留，碳鋼部件省去此步驟。阿圖什消聲止回閥廠家。新疆黃銅絲扣排氣閥</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆黃銅絲扣排氣閥,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864796992188/8712118.jpg"></div><p> 對不含有氧或氧化劑的***、磷酸、醋酸、稀鹽酸等有較好的耐蝕性，同時對堿有很好的抗力。但不耐硝酸、濃***等氧化性酸的腐蝕，也不熔融金屬、硫和硫化物的腐蝕。切忌與氨接觸，它能使銅及銅合金產(chǎn)生應(yīng)力腐蝕破裂。選用時應(yīng)注意，銅合金的牌號不同，其耐腐蝕性有一定的差異。5.鋁閥門對強氧化性的濃硝酸的耐蝕性好，能耐有機酸和溶劑。但在還原性介質(zhì)、強酸、強堿中不耐蝕。鋁的純度越高，耐蝕性越好，但強度隨之下降，只能用作壓力很低的閥門或閥門襯里。6.鈦閥門鈦是活性金屬，在常溫下能生成耐蝕性很好的氧化膜。它能耐海水、各種氯化物和次氯酸鹽、濕氯、氧化性酸、有機酸、堿等的腐蝕。但它不耐較純的還原性酸，如***、鹽酸的腐蝕，切耐含有氧化劑的硝酸腐蝕。鈦閥門對孔蝕有良好的抗力。但在紅發(fā)硝酸、氯化物、甲醇等介質(zhì)中會產(chǎn)生應(yīng)力腐蝕。7.鋯閥門鋯也屬于活性金屬，它能生成緊密的氧化膜，它對硝酸、鉻酸、堿液、熔液、鹽液、尿素、海水等有良好的耐蝕性能，但不耐氫氟酸、濃***、王水的腐蝕，也不耐濕氯和氧化性金屬氯化物的腐蝕。8.陶瓷閥門以二氧化硅為主熔化燒結(jié)制成的閥門，如氧化鋯、氧化鋁、氮化硅等，除有極高的耐磨、耐溫。隔熱性能外。伊犁進口閥門價格阿克蘇立式止回閥廠家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆黃銅絲扣排氣閥,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864801464844/3391347.jpg"></div><p> 不宜選用截止閥和閘閥，因為它們的密封面容易被析晶和沉淀物磨損。因此，應(yīng)選用球閥或旋塞閥較合適；也可選平板閘閥，但**好采用夾管閥。在閘閥的選型上，明桿單閘板比暗桿雙閘板適應(yīng)腐蝕性介質(zhì)；單閘板適于粘度大的介質(zhì)；楔式雙閘板對高溫和對密封面變形的適應(yīng)性比楔式單閘板要好，不會出現(xiàn)因溫度變化產(chǎn)生卡現(xiàn)象，特別是比不帶彈性的單閘板優(yōu)越。需要準確的調(diào)節(jié)小流量時，不宜需要截止閥，應(yīng)采用針型閥或節(jié)流閥。在需要保持閥后的壓力穩(wěn)定時，應(yīng)采用減壓閥。對高壓和超高壓介質(zhì)，常采用直角式截止閥，因為直角式截止閥通常是鍛鋼制作的，鍛鋼的耐壓能力相對比鑄鋼強。2.經(jīng)濟合理性對腐蝕性介質(zhì)，如果溫度和壓力不高，應(yīng)盡量采用非金屬閥門；如果溫度和壓力較高，可用襯里閥門，以節(jié)約貴重金屬。在選擇非金屬閥門時，仍應(yīng)考慮經(jīng)濟合理性。例如，在能夠用聚氯乙烯的情況下，就不用聚四氟乙烯，因為聚四氟乙烯比聚氯乙烯的價格要高。對溫度較高、壓力較大的場合，應(yīng)根據(jù)溫壓表，若普通碳素鋼閥門能滿足使用要求，就不宜采用合金鋼閥門，因為合金鋼閥門價格要高得多。對于粘度較大的介質(zhì)，要求有較小的流阻，應(yīng)采用Y型直流式截止閥、閘閥、球閥、旋塞閥等流阻小的閥門。</p><p> 閥門養(yǎng)護工作看似簡單，其實不然。工作中常有被忽視的方面。***、閥門注脂時。常常忽視注脂量的問題。注脂***加油后，操作人員選擇閥門和注脂聯(lián)結(jié)方式后，進行注脂作業(yè)。存在著二種情況：一方面注脂量少注脂不足，密封面因缺少潤滑劑而加快磨損。另一方面注脂過量，造成浪費。在于沒有根據(jù)閥門類型類別，對不同的閥門密封容量進行精確的計算?？梢砸蚤y門尺寸和類別算出密封容量，再合理的注入適量的潤滑脂。第二、閥門注脂時，常忽略壓力問題。在注脂操作時，注脂壓力有規(guī)律地呈峰谷變化。壓力過低，密封漏或失效，壓力過高，注脂口堵塞、密封內(nèi)脂類硬化或密封圈與閥球、閥板抱死。通常注脂壓力過低時，注入的潤滑脂多流入閥腔底部，一般發(fā)生在小型閘閥。而注脂壓力過高，一方面檢查注脂嘴，如是脂孔阻塞判明情況進行更換；另一方面是脂類硬化，要使用清洗液，反復(fù)軟化失效的密封脂，并注入新的潤滑脂置換。此外，密封型號和密封材質(zhì)，也影響注脂壓力，不同的密封形式有不同的注脂壓力，一般情況硬密封注脂壓力要高于軟密封。第三、閥門注脂時，注意閥門在開關(guān)位的問題。球閥維護保養(yǎng)時一般都處于開位狀態(tài)，特殊情況下選擇關(guān)閉保養(yǎng)。其他閥門也不能一概以開位論處。阿克蘇立臥兩用止回閥廠家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆黃銅絲扣排氣閥,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864799892578/8112427.jpg"></div><p> 縮口閘閥阻力系數(shù)大一些。截止閥的阻力系數(shù)比閘閥大得多，一般在4～7之間。Y型截止閥（直流式）阻力系數(shù)**小，在～2之間。鍛鋼截止閥阻力系數(shù)**大，甚至高達8。止回閥的阻力系數(shù)視結(jié)構(gòu)而定：旋啟式止回閥通常約為～2，其中多瓣旋啟式止回閥的阻力系數(shù)較大；升降式止回閥阻力系數(shù)**大，高達12。旋塞閥的阻力系數(shù)小，通常約為～。隔膜閥的阻力系數(shù)一般在。蝶閥的阻力系數(shù)小，一般在。球閥的阻力系數(shù)**小，一般在。上述閥門的阻力系數(shù)是閥門全開狀態(tài)下的數(shù)值。閥門通徑的選用，應(yīng)考慮到閥門的加工精度和尺寸偏差，以及其它因素影響。閥門通徑應(yīng)有一定的富裕量，一般為15%。在實際的工作中，閥門通徑隨工藝管線的通徑而定。六、根據(jù)工況條件和工藝操作綜合確定閥門的結(jié)構(gòu)型式返回頁首1.工藝要求氨對銅有腐蝕作用，不能選用銅材質(zhì)制作的閥門。在介質(zhì)中含有氨的工藝流程中，截止閥的結(jié)構(gòu)與一般閥門不同，其密封面是用巴氏合金制作的。雙流向的管線應(yīng)選用無方向性的閥門。在煉油廠，重質(zhì)油管停止運行后，要用蒸汽反向吹掃管線，以防重油凝固堵塞管線，因而不宜采用截止閥。因為介質(zhì)反向流入時，容易沖蝕截止閥密封面，應(yīng)選用閘閥為佳。對某些有析晶或含有沉淀物的介質(zhì)。庫爾勒旋啟式止回閥廠家。新疆黃銅絲扣排氣閥</p><p style="text-indent:25px">烏魯木齊旋啟式止回閥廠家。新疆黃銅絲扣排氣閥</p><p> 300楔式閘閥Z40Y-16I油品550200～400楔式閘閥Z40H-25油品、蒸汽、水35050～400電動楔式閘閥Z940H-2550～400氣動楔式閘閥Z640H-2550～400楔式閘閥Z40H-25Q50～200電動楔式閘閥Z940H-25Q50～200傘齒輪傳動楔式雙閘板閘閥Z542H-25蒸汽、水300300～500電動楔式雙閘板閘閥Z942H-25300～800承插焊楔式閘閥Z61Y-40油品、蒸汽、水42515～40楔式閘閥Z41H-4015～40楔式閘閥Z40H-4050～250正齒輪傳動楔式閘閥Z400H-40300，350，400電動楔式閘閥Z940H-4050～400氣動楔式閘閥Z640H-4050～400楔式閘閥Z40H-4035050～200電動楔式閘閥Z940H-40Q50～200楔式閘閥Z40Y-40P硝酸類100200，250正齒輪傳動楔式閘閥Z440Y-40P300～500楔式閘閥Z40Y-40I油品55050～250楔式閘閥Z40H-64油品、蒸汽、水42550～250正齒輪傳動楔式閘閥Z440H-64300，350，400電動楔式閘閥Z940H-6450～800電動楔式閘閥Z940Y-64I油品550300，350，400，450，500楔式閘閥Z40Y-64I油品、蒸汽、水45050～250楔式閘閥Z40Y-10050～200正齒輪傳動楔式閘閥Z440Y-100250。新疆黃銅絲扣排氣閥</p><p style="text-indent:25px">新疆遠大通用閥門有限公司是一家閥門的研發(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）的公司，致力于發(fā)展為創(chuàng)新務(wù)實、誠實可信的企業(yè)。公司自創(chuàng)立以來，投身于閥門，是機械及行業(yè)設(shè)備的主力軍。遠大通用閥門始終以本分踏實的精神和必勝的信念，影響并帶動團隊取得成功。遠大通用閥門始終關(guān)注機械及行業(yè)設(shè)備市場，以敏銳的市場洞察力，實現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2744532.html</p></div></div></div></div></div><div id="6raq72r" class="page-right twoColRt"><div id="zlmnwco" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="kgc7o4q" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" 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