北京直銷止回閥圖片歡迎來電上海冠耐閥門供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="CVKR大口徑靜音式止回閥采用符合水力學(xué)的輪廓設(shè)計，取得較佳的流線型水路，內(nèi)部附近有導(dǎo)流體的設(shè)計能保證**小的壓力損失。靜音式止回閥安裝于水泵出水口處，可在水流倒前先行快速關(guān)閉，北京直銷止回閥圖片，北京直銷止回閥圖片，避免產(chǎn)生水錘、水擊聲和破"><meta name="keywords" content="北京直銷止回閥圖片"><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/second-jxjxysb_famenti/">閥門</a>?<a href="http://www.cdcfah.com/cp/third-famenti_zhihuifats/">止回閥</a>?北京直銷止回閥圖片歡迎來電上海冠耐閥門供應(yīng)</p><div id="ds7if2g" class="leftbox clearfix"><h1>北京直銷止回閥圖片歡迎來電上海冠耐閥門供應(yīng)</h1><div id="2lif2gi" class="proBig"><div id="t8xnvs7" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/7/26/8/636997283467475524_guannai_2825030.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="m9889g2" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/7/26/8/636997283467475524_guannai_2825030.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="amolikj" 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>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>北京直銷止回閥圖片</p><p><span>***更新：</span>2020-06-22 02:19:42</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ipmjqxe" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海冠耐閥門有限公司</a></p><p><span>聯(lián)系人：</span>石家全</p><p><span>郵箱: </span>gnvalves@163.com</p><p><span>電話: </span>13636691668</p><p><span>傳真: </span>021_67180323</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-67180323</p><p><span>地址: </span>科工路869號第4幢第1層第24車間</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="ydax8dv" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="dnf8mtq" class="box"><p><p style="text-indent:25px">CVKR大口徑靜音式止回閥采用符合水力學(xué)的輪廓設(shè)計，取得較佳的流線型水路，內(nèi)部附近有導(dǎo)流體的設(shè)計能保證**小的壓力損失。靜音式止回閥安裝于水泵出水口處，可在水流倒前先行快速關(guān)閉，北京直銷止回閥圖片，北京直銷止回閥圖片，避免產(chǎn)生水錘、水擊聲和破壞性沖擊，以達(dá)到靜音、防止倒流和保護(hù)設(shè)備的目的。常用于給排水、消防、暖通、工業(yè)等系統(tǒng)。 CVKR大口徑靜音式止回閥技術(shù)參數(shù) 公稱通徑 DN50-600MM 公稱壓力 1.0-1.6-2，北京直銷止回閥圖片.5MPa 工作溫度 -10°C-80°C 密封試驗 1.1倍公稱壓力殼體試驗 1.5倍公稱壓力 CVKR大口徑靜音式止回閥材質(zhì)說明序號零件名稱材質(zhì) 1 閥體 GG25 2 閥盤 QA19-4 3 軸承 QA19-4 4 彈簧 GUS316 5 導(dǎo)流體 GG25 6 閥座 QA19</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京直銷止回閥圖片" src="http://tyunfile.71360.com/UpLoadFile/2019/7/26/8/636997283467475524_guannai_2825030.jpg"></div><p style="text-indent:25px">止回閥操作中的注意事項及密封原理：止回閥的操作方式應(yīng)避免發(fā)生如下情況： 1、因止回閥關(guān)閉而造成過分高的沖擊壓力。 2、閥門關(guān)閉件快速振蕩動作。球形止回閥的閥瓣是包覆橡膠或工程塑料的球體，因此其密封性能可靠。球型止回閥根據(jù)其公稱通徑的大小，有單球和多球之分。其密封原理是：當(dāng)開泵時，介質(zhì)正向流動產(chǎn)生的介質(zhì)壓力推動球體運(yùn)動，沿導(dǎo)住離開閥座密封面，止回閥便開啟，介質(zhì)通過；當(dāng)停泵時，介質(zhì)反向流動的壓力推動球體沿導(dǎo)柱滾到閥座密封面，關(guān)閉止回閥，靠工作介質(zhì)的壓力，使球體閥瓣和閥座密封面間產(chǎn)生一定的密封比壓，保證止回閥的密封，達(dá)到阻止介質(zhì)逆流的目的。由于球形止回閥的球體閥瓣和閥座密封面接觸的面較窄，在相同的介質(zhì)工作壓力下，線密封比面密封的密封比壓力大，因此密封可靠。但球形止回閥的密封件球體包覆橡膠或工程塑料，因此工作溫度受到材料的限制，一般介質(zhì)工作溫度在150度以下。為了避免關(guān)閉止回閥而形成的過高沖擊壓力，閥門必須關(guān)閉迅速，從而防止形成極大的倒流速度。該倒流速度就是形成沖擊壓力的原因，故止回閥的關(guān)閉速度應(yīng)與順流介質(zhì)的衰減速度正確匹配。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京直銷止回閥圖片" src="http://tyunfile.71360.com/UpLoadFile/2019/7/30/13/637000890409546351_guannai_5266871.jpg"></div><p style="text-indent:25px">上海冠耐閥門有限公司是專業(yè)從事“閥門批發(fā)|閥門銷售|閥門加工|閥門維修”的企業(yè)，公司秉承“誠信經(jīng)營，用心服務(wù)”的理念，為您提供質(zhì)量的產(chǎn)品和服務(wù)。歡迎來電咨詢！</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/344414.html</p></div></div></div></div></div><div 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