新疆黃銅絲扣截止閥新疆遠(yuǎn)大通用閥門供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 對(duì)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(shí)對(duì)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)"><meta name="keywords" content="新疆黃銅絲扣截止閥,閥"><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 http-equiv="Cache-Control" 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clearfix"><h1>新疆黃銅絲扣截止閥新疆遠(yuǎn)大通用閥門供應(yīng)</h1><div id="zl55fxv" class="proBig"><div id="lzhpd3b" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864797431641/5717140.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="bzpv3fl" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864797431641/5717140.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="5lbh3l5" 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>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>新疆黃銅絲扣截止閥,閥</p><p><span>***更新：</span>2020-12-12 14:19:10</p><p><span id="click" >瀏覽次數(shù)：6次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="jvljxjp" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">新疆遠(yuǎn)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(jī): </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(hào)</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="l5hfbpv" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3lbrh3f" class="box"><p><p> 對(duì)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(shí)對(duì)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(shí)應(yīng)注意，銅合金的牌號(hào)不同，其耐腐蝕性有一定的差異。5.鋁閥門對(duì)強(qiáng)氧化性的濃硝酸的耐蝕性好，能耐有機(jī)酸和溶劑。但在還原性介質(zhì)、強(qiáng)酸、強(qiáng)堿中不耐蝕。鋁的純度越高，耐蝕性越好，但強(qiáng)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(jī)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(duì)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(huì)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(duì)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，新疆黃銅絲扣截止閥，新疆黃銅絲扣截止閥，除有極高的耐磨、耐溫，新疆黃銅絲扣截止閥。隔熱性能外。新疆遙控浮球閥生產(chǎn)廠家。新疆黃銅絲扣截止閥</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆黃銅絲扣截止閥,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864797431641/5717140.jpg"></div><p> 其耐蝕性也不相同。塑料襯里的耐蝕性與上述塑料閥門中的相應(yīng)塑料相同。但選用時(shí)，應(yīng)考慮塑料襯里閥門中使用的其它材料的耐蝕性能。⑽橡膠襯里閥門橡膠較軟，因此很多閥門采用橡膠做襯里，以提高閥門的抗蝕性能和密封性能。隨橡膠種類的不同，其耐蝕性差異較大。經(jīng)過硫化的天然橡膠能耐非氧化性酸、堿、鹽的腐蝕，但不耐強(qiáng)氧化劑，如硝酸、鉻酸、濃***的腐蝕，也不耐石油產(chǎn)品和某些有機(jī)溶劑的腐蝕。因此，天然橡膠被合成橡膠逐漸代替。合成橡膠中的丁腈橡膠耐油性能好，但不耐氧化性酸、芳烴、脂、酮、醚等強(qiáng)溶劑的腐蝕；氟橡膠耐蝕性能優(yōu)異，能耐各類酸、堿、鹽、石油產(chǎn)品、烴類等，但耐溶劑性不及氟塑料；聚醚橡膠可用于水、油、氨、堿等介質(zhì)。⑾鉛襯里閥門鉛屬活性金屬，但因材質(zhì)軟，常用作特殊閥門的襯里。鉛的腐蝕產(chǎn)物膜是很強(qiáng)的保護(hù)層，它是耐***的有名材料，在磷酸、鉻酸、碳酸及中性溶液、海水等介質(zhì)中具有較高的耐蝕性能、但不耐堿、鹽酸的腐蝕，也不適于在它們的腐蝕產(chǎn)物中工作。四、根據(jù)溫度和壓力選用閥門返回頁優(yōu)先用閥門除了考慮介質(zhì)的腐蝕性能、流量特性、連接形式外，介質(zhì)的溫度和壓力是重要的參數(shù)。新疆柱塞閥批發(fā)精鑄鋼球閥電話精鑄鋼球閥的價(jià)格。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆黃銅絲扣截止閥,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864799570313/5526304.jpg"></div><p> 1.止回閥的選用止回閥的作用是只允許介質(zhì)向一個(gè)方向流動(dòng)，而且阻止反方向流動(dòng)。常用的止回閥分升降式和旋啟式兩種（見圖1-28～圖1-32）。在高壓和小口徑的設(shè)備或管道上，通常選用升降式止回閥。要求壓力降小的管道，不宜選用升降式止回閥，因其流阻大，而應(yīng)選用蝶式止回閥或旋啟式止回閥。在壓力波動(dòng)大和有特殊要求的管道上。為了防止閥瓣產(chǎn)生水錘而損壞，應(yīng)選用有緩沖裝置的旋啟式止回閥?？趶捷^大時(shí)，選用多瓣旋啟式止回閥。在鍋爐給水泵的出口處，應(yīng)選用**的空排止回閥，以防止介質(zhì)倒流、提高泵的效率。用于水泵吸入管底部的止回閥應(yīng)選用底閥。普通的旋啟式止回閥或升降式止回閥應(yīng)盡量避免口徑過大。為了以**小的流速使止回閥瓣全開或開到合適位置，在某些使用情況下，安裝止回閥的口徑必須比相應(yīng)的管子的口徑要小一些。為了滿足各種用途的需要，止回閥也有多種多樣，如：球形止回閥。螺紋升降式截止止回閥、工作無沖擊的旋啟式止回閥、斜瓣止回閥、圓錐隔膜式止回閥等。根據(jù)介質(zhì)的不同，閥瓣可以全部用金屬制作，也可在金屬上鑲嵌皮革、橡膠、或者采用合成覆蓋面、熱噴涂其他合金材料。2.減壓閥的選用減壓閥是通過啟閉件的節(jié)流，將進(jìn)口壓力降至某一個(gè)需要的出口壓力。</p><p> 、ZG15Cr1MoV、WC9VP5714570蒸汽類鎳、鉻、鈦、耐酸鋼1Cr18Ni9TiZG1Cr18Ni9TiP≤≤200—100～—196≤600硝酸等腐蝕介質(zhì)乙烯等低溫介質(zhì)高溫蒸汽、氣體等鎳鉻鉬鈦耐酸鋼1Cr18Ni12Mo2TiZG1Cr18Ni12Mo2TiR≤20≤200尿素、醋酸等質(zhì)量錳釩鋼16Mn15MnVI≤16≤450水、蒸汽、油類等銅合金HSi80-3T≤≤250水、蒸汽、氣體等表2-3b常用密封面材料選用表材料代號(hào)常用工況適用閥類PN/MPat/℃橡膠X≤≤60截止閥、隔膜閥、蝶閥、止回閥等尼龍N≤32≤80球閥、截止閥等聚四氟乙烯塑料F≤≤150球閥、截止閥、旋塞閥、閘閥等巴氏合金B(yǎng)≤—70～150氨用截止閥銅合金QSn6-6-3HMn58-2-2T≤≤200閘閥、截止閥、止回閥、旋塞閥等不銹鋼2Cr13、3Cr13TDCr-2TDCrMnH≤≤450中高壓閥門滲氮鋼38CrMoALADP5410540電站閘閥、一般情況不使用硬質(zhì)合金WC、TiCY按閥體材料確定高溫閥、超高壓閥TDCoCr-1TDCoCr-2按閥體材料確定高壓、超高壓閥高溫、低溫閥在本體上加工鑄鐵W≤≤100氣、油類用閘閥、截止閥等質(zhì)量碳素鋼≤4≤200油類用閥門1Cr18Ni9TiCr18Ni12Mo2Ti≤32≤450酸類等腐蝕性介質(zhì)用閥門2.驅(qū)動(dòng)閥門選用舉例【例1】蒸汽管道工作壓力為，溫度為350℃，公稱通徑為100mm，試選擇閉路閥門。庫爾勒球型止回閥廠家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆黃銅絲扣截止閥,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864802158203/7838338.jpg"></div><p> 彈簧直接載荷式安全閥有封閉式和不封閉式兩種。一般易燃、易爆或0介質(zhì)選用封閉式。蒸汽或惰性氣體等可選用不封閉式。彈簧直接載荷式安全閥有的帶扳手，有的不帶扳手。扳手的作用是檢查閥瓣的靈敏度。⑶先導(dǎo)式安全閥。是一種依靠從導(dǎo)閥排出介質(zhì)來驅(qū)動(dòng)或控制的安全閥，該導(dǎo)閥本身應(yīng)是符合標(biāo)準(zhǔn)要求的直接載荷式安全閥。由于先導(dǎo)式安全閥的主閥通常利用工作介質(zhì)壓力加載，其載荷大小不受限制。因而可用于高壓、大口徑的場合。同時(shí)，因其主閥可設(shè)計(jì)成依靠工作介質(zhì)壓力密封的形式，或者可以對(duì)閥瓣施加直接載荷式安全閥大得多的載荷，因而主閥的密封性容易得到保證。此外，這類安全閥的動(dòng)作可以較少受背壓變化的影響，但是先導(dǎo)式安全閥的可靠性同主閥和導(dǎo)閥兩者有關(guān)，而且結(jié)構(gòu)比較復(fù)雜，為了提高可靠性，規(guī)范往往要求采用多重先導(dǎo)控制管路。這樣就更增加了整個(gè)保護(hù)系統(tǒng)的復(fù)雜程度?；谏鲜鲈颍葘?dǎo)式安全閥與彈簧直接載荷式安全閥無論在流程工業(yè)還是在電力工業(yè)中都有***的應(yīng)用，并各自發(fā)展、共同構(gòu)成了安全閥結(jié)構(gòu)發(fā)展的主流。⑷安全閥的選用要求。選用安全閥時(shí)，通常由操作壓力決定安全閥的公稱壓力，由操作溫度決定安全閥的使用溫度范圍。烏魯木齊銅桿閘閥廠家。烏魯木齊高溫球閥價(jià)格</p><p style="text-indent:25px">庫爾勒立式止回閥廠家。新疆黃銅絲扣截止閥</p><p style="text-indent:25px">當(dāng)壓力略低于正常工作壓力時(shí)，安全閥自動(dòng)關(guān)閉，停止排放流體并保持密封。泄壓閥主要是用在壓力過大的場合，當(dāng)壓力大于設(shè)定值時(shí)閥內(nèi)片被頂開及時(shí)釋放壓力，壓力減小后恢復(fù)到原來的位置，和安全閥區(qū)別不大，泄壓閥多指用于液體的，安全閥多指用于氣體，蒸汽的。穩(wěn)壓閥是將一個(gè)區(qū)域內(nèi)的介質(zhì)保持在一定的壓力范圍的設(shè)備。和減壓閥的區(qū)別：減壓閥：無論進(jìn)口壓力如何變化，都把出口壓力減到額定值，起到減壓作用。穩(wěn)壓閥：無論下游壓力和需求量如何變化，都維持一個(gè)恒定的上游壓力。安全閥及減壓閥是兩種閥門類型，是**閥門。其中，安全閥屬于安全泄發(fā)裝置，是**閥門，只在工作壓力超過允許范圍時(shí)動(dòng)作，對(duì)系統(tǒng)起到保護(hù)作用。減壓閥屬于工藝閥門，可使高壓物流減壓，以滿足后系統(tǒng)對(duì)壓力的要求，其工作過程是連續(xù)的。新疆黃銅絲扣截止閥</p><p style="text-indent:25px">新疆遠(yuǎn)大通用閥門有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家生產(chǎn)型的公司。公司業(yè)務(wù)分為閥門等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供良好的產(chǎn)品和服務(wù)。公司秉持誠信為本的經(jīng)營理念，在機(jī)械及行業(yè)設(shè)備深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點(diǎn)，發(fā)揮人才優(yōu)勢，打造機(jī)械及行業(yè)設(shè)備良好品牌。遠(yuǎn)大通用閥門秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實(shí)”的經(jīng)營理念，全力打造公司的重點(diǎn)競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2375798.html</p></div></div></div></div></div><div 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