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src="https://tyunfile.71360.com/UploadFile/shhanshang/637408582046612006/8114490.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="fzbypwa" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shhanshang/637408582046612006/8114490.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="od7zbi3" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>對夾蝶閥閥座生產(chǎn)公司,閥座</p><p><span>***更新：</span>2020-12-07 01:20:47</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="0uwt77d" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海含商建設(shè)工程有限公司</a></p><p><span>聯(lián)系人：</span>朱瑩</p><p><span>郵箱: </span>Irene_zy516@163.com</p><p><span>電話: </span>13918191286</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://shhanshang.shop.88360.com</p><p><span>手機(jī): </span>021-58210069</p><p><span>地址: </span>上海市崇明區(qū)新河鎮(zhèn)新申路921弄2號(hào)L區(qū)228室(上海富盛經(jīng)濟(jì)開發(fā)區(qū))</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="l88vxjn" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="xrognpb" class="box"><p><p style="text-indent:25px">上海含商建設(shè)工程有限公司小編向大家介紹幾種橡膠閥座：乙丙橡膠閥座適用于濃堿，低壓蒸汽，熱水，冷水，酒精，禁用各種油脂和強(qiáng)酸。氯丁橡膠閥座適用于水，海水，對夾蝶閥閥座生產(chǎn)公司，對夾蝶閥閥座生產(chǎn)公司，對夾蝶閥閥座生產(chǎn)公司，濃度在20%以下的稀酸，禁用食油，磷酸等芳香烴高的油類。丁晴橡膠閥座適用于水，海水，機(jī)油，潤滑油，酒精，天然氣，禁用汽油，沒有等芳香烴高的油類。耐磨橡膠閥座適用于泥漿，煤漿，水泥粉，煤粉。氟橡膠閥座適用于汽油，燃油，無機(jī)酸，動(dòng)物油，嚴(yán)禁用于蒸汽。聚四氟乙烯塑料閥座適用于一切酸堿腐蝕性介質(zhì)和食品。選用軟閥座應(yīng)考慮材料的彈性模量。對夾蝶閥閥座生產(chǎn)公司</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="對夾蝶閥閥座生產(chǎn)公司,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408582046612006/8114490.png"></div><p style="text-indent:25px">閥座和密封圈是球閥的關(guān)鍵部件。密封圈應(yīng)具有優(yōu)良的穩(wěn)定性，較小的摩擦系數(shù)，不易老化，密封性能好。閥座應(yīng)具有一定的強(qiáng)度和剛度，間隙適中，受壓時(shí)不易變形。金屬密封閥座應(yīng)滿足高溫、高壓、強(qiáng)腐蝕、很低溫、零泄漏、長壽命、防火安全和耐壓耐磨等功能。聚四氟乙烯(PTFE)具有耐腐蝕性強(qiáng)，性能穩(wěn)定，不易老化，摩擦系數(shù)低，易于成形，尺寸穩(wěn)定并且可以通過填充、添加適當(dāng)?shù)牟牧细纳破渚C合性能得到強(qiáng)度更好、摩擦系數(shù)更低的蝶閥密封材料，克服了合成橡膠的局限性，因而以聚四氟乙烯為表示的高分子聚合材料及其填充改性材料，在蝶閥上得到了普遍的應(yīng)用，從而使蝶閥的性能得到進(jìn)一步的提高，制造出了溫度壓力范圍更廣，密封性能可靠，使用壽命更長的蝶閥。對夾蝶閥閥座生產(chǎn)公司閥座使用有彈性的密封材料及小的執(zhí)行機(jī)構(gòu)推力來獲得氣泡嚴(yán)密級密封。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="對夾蝶閥閥座生產(chǎn)公司,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408582166787755/8558756.png"></div><p style="text-indent:25px">金屬密封閥座材料主要有鉻基硬質(zhì)合金、鈷基硬質(zhì)合金、鎳合金、碳化鎢、不銹鋼等。軟密封閥座普通式的特點(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。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。</p><p style="text-indent:25px">閥座和閥芯配合使用，在油路中起到控制作用。ptfe球閥閥座用的材料：EPDM(三元乙丙橡膠):有優(yōu)異的耐天候、耐臭氧、耐熱、耐酸堿、耐水蒸汽、顏色穩(wěn)定性、電性能、充油性及常溫流動(dòng)性。乙丙橡膠制品在120°C下可長期使用，在150-200°C下可短暫或間歇使用。根據(jù)工況選擇吧大多數(shù)用聚四氟乙烯，但是耐壓，耐溫也不高，一般也就一百多攝氏度，10Mpa也可以其他的增強(qiáng)型聚四氟Z烯或者聚三氟氯乙烯，這相比于四氟耐壓方面要好點(diǎn)再者可以用聚醚醚酮和對位聚苯等特殊高分子材料，分子材料分通用高分子材料和特殊高分子材料兩大類。蝶閥的閥座材質(zhì)非常普遍。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="對夾蝶閥閥座生產(chǎn)公司,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408581796904968/3742657.png"></div><p style="text-indent:25px">閥座能耐較高溫下的無機(jī)酸、較低溫度下的鹽溶液強(qiáng)氧化劑，也能耐室溫下的大多數(shù)有機(jī)介質(zhì)。聚全氟乙丙烯（PFEP-F46）具有耐高溫和耐低溫性能，可在-85~205℃范圍內(nèi)長期工作，密度為21g/cm3，導(dǎo)熱系數(shù)為 025W/（mc），線膨脹系數(shù)為（95~196）×10-5/℃，抗拉強(qiáng)度為19~20MPa，抗壓強(qiáng)度為710MPa，彎曲強(qiáng)度為14MPa。具有與聚四氟乙烯相當(dāng)?shù)幕瘜W(xué)穩(wěn)定性，能耐各種濃度的無機(jī)酸、堿、醇、酮、烴類、鹵代烴、芬烴、油脂和去污劑等。聚酰胺（N1010）在常溫下具有較高的抗拉強(qiáng)度，良好的沖擊韌性，高的硬度和疲勞強(qiáng)度，特別是耐磨性和自潤滑性能優(yōu)異，低摩擦系數(shù)（003）等特點(diǎn)。閥座的閥板裝置配套法蘭主張采用閥座**法蘭。球閥閥座大修</p><p style="text-indent:25px">一般閥座直徑即為閥門比較大的流通直徑。對夾蝶閥閥座生產(chǎn)公司</p><p style="text-indent:25px">橡膠閥座具有特殊性能，耐熱、耐寒、耐化學(xué)腐蝕、耐油、耐溶劑、耐輻射等特殊性能橡膠制品使用的稱為特種橡膠。特種橡膠有:丁腈橡膠(NBR)、硅橡膠、氟橡膠、聚氨酯橡膠、聚硫橡膠、聚丙烯酸酯橡膠(UR)、氯醚橡膠、氯化聚乙烯橡膠(CPE)、氯磺化聚乙烯(CSM)、丁吡橡膠等。實(shí)際上，通用橡膠和特種橡膠之間并無嚴(yán)格的界限，如乙丙橡膠兼具上述兩方面的特點(diǎn)。通用橡膠與特種橡膠之間的有:氯丁橡膠(CR)、乙丙橡膠(EPDM)、丁基橡膠(IIR)。天然膠閥座適用藥品食品。海帕倫閥座有較好的抗酸堿性，嚴(yán)禁用于蒸汽。對夾蝶閥閥座生產(chǎn)公司</p><p style="text-indent:25px">上海含商建設(shè)工程有限公司擁有市政公用工程，管道工程，機(jī)電設(shè)備安裝、維修（除特種設(shè)備），化工產(chǎn)品及原料（除危險(xiǎn)化學(xué)品、監(jiān)控化學(xué)品、煙花爆竹、民用物品、易制毒化學(xué)品）、儀器儀表、五金交電、橡塑制品、建筑材料、裝潢材料、電子產(chǎn)品、日用百貨的銷售，機(jī)械設(shè)備技術(shù)領(lǐng)域內(nèi)的技術(shù)開發(fā)、技術(shù)轉(zhuǎn)讓、技術(shù)咨詢和技術(shù)服務(wù)。等多項(xiàng)業(yè)務(wù)，主營業(yè)務(wù)涵蓋維修高壓主汽門、高壓調(diào)門，維修中壓主汽門、中壓調(diào)門，閥座的車削、堆焊、補(bǔ)焊，熱處理、研磨。公司目前擁有較多的高技術(shù)人才，以不斷增強(qiáng)企業(yè)重點(diǎn)競爭力，加快企業(yè)技術(shù)創(chuàng)新，實(shí)現(xiàn)穩(wěn)健生產(chǎn)經(jīng)營。上海含商建設(shè)工程有限公司主營業(yè)務(wù)涵蓋維修高壓主汽門、高壓調(diào)門，維修中壓主汽門、中壓調(diào)門，閥座的車削、堆焊、補(bǔ)焊，熱處理、研磨，堅(jiān)持“質(zhì)量保證、良好服務(wù)、顧客滿意”的質(zhì)量方針，贏得廣大客戶的支持和信賴。公司力求給客戶提供全數(shù)良好服務(wù)，我們相信誠實(shí)正直、開拓進(jìn)取地為公司發(fā)展做正確的事情，將為公司和個(gè)人帶來共同的利益和進(jìn)步。經(jīng)過幾年的發(fā)展，已成為維修高壓主汽門、高壓調(diào)門，維修中壓主汽門、中壓調(diào)門，閥座的車削、堆焊、補(bǔ)焊，熱處理、研磨行業(yè)出名企業(yè)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2294897.html</p></div></div></div></div></div><div id="lpmzbnk" class="page-right twoColRt"><div id="hbt39wi" 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