江西進(jìn)口真空管道蝶閥口徑頂耕國(guó)際貿(mào)易供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 1)非金屬材料：如紙，江西進(jìn)口真空管道蝶閥口徑、麻、牛皮、石棉制品、塑料、橡膠等。紙、麻、牛皮之類，有毛細(xì)孔，易滲透，使用時(shí)須浸漬油、蠟或其他防滲透材料。一般閥門(mén)很少采用。石棉制品，又有石棉帶"><meta name="keywords" content="江西進(jìn)口真空管道蝶閥口徑"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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href="http://www.cdcfah.com/cp/third-famenti_diefakna/">蝶閥</a>?江西進(jìn)口真空管道蝶閥口徑頂耕國(guó)際貿(mào)易供應(yīng)</p><div id="qj893gm" class="leftbox clearfix"><h1>江西進(jìn)口真空管道蝶閥口徑頂耕國(guó)際貿(mào)易供應(yīng)</h1><div id="3cm2hdm" class="proBig"><div id="j2fgf28" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494296875/9390800.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8ahj3ls" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494296875/9390800.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="u3jfjaz" 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>江西進(jìn)口真空管道蝶閥口徑</p><p><span>***更新：</span>2020-05-22 17:31:57</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="db7482m" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">頂耕國(guó)際貿(mào)易（上海）有限公司</a></p><p><span>聯(lián)系人：</span>查劍來(lái)</p><p><span>郵箱: </span></p><p><span>電話: </span>18521036598</p><p><span>傳真: </span>021_61637356</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-61637356</p><p><span>地址: </span>大葉公路5225號(hào)1幢2370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="oht2qb2" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="cq2hij9" class="box"><p><p> 1)非金屬材料：如紙，江西進(jìn)口真空管道蝶閥口徑、麻、牛皮、石棉制品、塑料、橡膠等。紙、麻、牛皮之類，有毛細(xì)孔，易滲透，使用時(shí)須浸漬油、蠟或其他防滲透材料。一般閥門(mén)很少采用。石棉制品，又有石棉帶、繩、板和石棉橡膠板等。其中石棉橡膠板結(jié)構(gòu)致密，耐壓性能好，耐溫性能也很好，閥門(mén)自己和閥門(mén)與管子法蘭毗連中，使用極為普遍。塑料制品，有很好耐侵蝕性能，使用也較普遍。品種有聚乙烯、聚丙烯、軟聚氯乙烯、聚四氟乙烯、尼龍66、尼龍1010等。橡膠制品，質(zhì)柔軟，各類橡膠劃分有一定耐酸、耐堿、耐油、耐海水能力。品種有自然橡膠、丁苯橡膠、丁腈橡膠、氯丁橡膠、異丁橡膠、聚氨酯橡膠、氟橡膠等，江西進(jìn)口真空管道蝶閥口徑。(2)金屬材料：一般說(shuō)，金屬材料強(qiáng)度高，耐溫性能強(qiáng)。但鉛其實(shí)不這樣，*取它耐稀硫酸特征。經(jīng)常使用品種有黃銅、紫銅、鋁、低碳鋼、不銹鋼、蒙乃爾合金、銀、鎳等。(3)復(fù)合材料：例如金屬包皮(內(nèi)部石棉)墊圈、組合波形墊圈、環(huán)繞糾纏墊圈等。2)經(jīng)常使用墊圈性能使用閥門(mén)時(shí)，往往具體情況，更換原帶墊圈，江西進(jìn)口真空管道蝶閥口徑。常有墊圈有：橡膠平墊圈、橡膠O形圈、塑料平墊圈、聚四氟乙烯包墊圈、石棉橡膠墊圈、金屬平墊圈、金屬異形墊圈、金屬包皮墊圈、波形墊圈、環(huán)繞糾纏墊圈等。(1)橡膠平墊圈：變形容易。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西進(jìn)口真空管道蝶閥口徑" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494296875/9390800.png"></div><p> <br /> </p> <p> <br /> </p> <p> 通常，在節(jié)流、調(diào)節(jié)控制與泥漿介質(zhì)中，要求結(jié)構(gòu)長(zhǎng)度短，啟閉速度快（1/4轉(zhuǎn)）。低壓截止（壓差?。?，推薦選用蝶閥。 </p> <p> <br /> </p> <p> 在雙位調(diào)節(jié)、縮口地通道、低噪聲、有氣穴和氣化現(xiàn)象，向大氣少量滲漏，具有磨蝕性介質(zhì)時(shí)，可以選用蝶閥。在特殊工況條件下節(jié)流調(diào)節(jié)，或要求密封嚴(yán)格，或磨損嚴(yán)重、低溫（深冷）等工況條件下使用蝶閥時(shí)，需使用特殊設(shè)計(jì)金屬密封帶調(diào)節(jié)裝置地三偏心或雙偏心地**蝶閥。中線蝶閥適用于要求達(dá)到完全密封、氣體試驗(yàn)泄漏為零、壽命要求較高、工作溫度在-10度～150度的淡水、污水、海水、鹽水、蒸汽、天然氣、食品、藥品、油品和各種酸堿及其他管路上。軟密封偏心蝶閥適用于通風(fēng)除塵管路的雙向啟閉及調(diào)節(jié)，很多用于冶金、輕工、電力、石油化工系統(tǒng)的煤氣管道及水道等。金屬對(duì)金屬線密封雙偏心蝶閥適用于城市供熱、供氣、供水等煤氣、油品、酸堿等管路，作為調(diào)節(jié)和節(jié)流裝置。金屬對(duì)金屬面密封三偏心蝶閥除作為大型變壓吸附（PSA）氣體分離裝置程序控制閥使用外，還可很多用于石油、石化、化工、冶金、電力等領(lǐng)域，時(shí)閘閥、截止閥的良好替代產(chǎn)品 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西進(jìn)口真空管道蝶閥口徑" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737494101563/8647630.png"></div><p> 壓緊時(shí)不艱苦，但耐壓、耐溫能力都較差，只用于壓力低、溫度不高方。自然橡膠有一定耐酸堿性能，使用溫度不宜跨越60℃；氯丁橡膠也能耐某些酸堿，使用溫度80℃；丁腈橡膠耐油，可用至80℃；氟橡膠耐侵蝕性能很好，耐溫性能也比一般橡膠強(qiáng)，可150℃介質(zhì)中使用。(2)橡膠O形墊圈：斷面外形是正圓，有一定自緊作用，密封效果比平墊圈好，壓緊力更小。(3)塑料平墊圈：塑料**年夜特點(diǎn)是耐侵蝕性好,年夜部門(mén)塑料耐溫性能欠好。聚四氟乙烯為塑料之冠，耐侵蝕性能優(yōu)良，耐溫范圍比力寬闊，可-180℃～+200℃之內(nèi)持久使用。(4)聚四氟乙烯包墊圈：充實(shí)闡揚(yáng)聚四氟乙烯優(yōu)點(diǎn)，同時(shí)彌補(bǔ)它彈性較差錯(cuò)誤謬誤，做成聚四氟乙烯包裹橡膠或石棉橡膠墊圈。這樣，既同聚四氟乙烯平墊圈一樣耐侵蝕，又有***彈性，增強(qiáng)密封效果，減小壓緊力。(5)石棉橡膠墊圈：由石棉橡膠板剪成。它組分是60～80%石棉和10～20%橡膠，和填充劑、硫化劑等。它有很好耐熱性、耐冷性、化學(xué)穩(wěn)定性，貨源豐碩，價(jià)格廉價(jià)。使用時(shí)，壓緊力沒(méi)必要很年夜。它能粘附金屬，比較好概況涂一層石墨粉，以免拆卸時(shí)費(fèi)勁。(6)金屬平熱圈：鉛，耐溫100℃；鋁430℃；銅315℃；低碳鋼550℃；銀650℃；鎳810℃；蒙乃爾(鎳銅)合金810℃。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西進(jìn)口真空管道蝶閥口徑" src="http://tyunfile.71360.com/WaterMark/UploadFile/shdign/637129737896250000/4170655.jpg"></div></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3732.html</p></div></div></div></div></div><div id="2l2cxwq" 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