<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<?xml-stylesheet type="text/xsl" href="css/rss.xslt"?>
<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>东瓯密封件</title><link>http://www.valvesealing.com/</link><description>东瓯密封件</description><generator>RainbowSoft Studio Z-Blog 1.8 Arwen Build 81206</generator><language>zh-CN</language><copyright>Copyright &amp;amp;copy;2004-2009 永嘉瓯北东瓯密封件厂版权所有</copyright><pubDate>Wed, 12 Oct 2011 11:01:32 +0800</pubDate><item><title>西气东输二线工程干线投产保障能源消费</title><author>China@ValveSealing.com (seal)</author><link>http://www.valvesealing.com/News/xiqidongshuerxian.html</link><pubDate>Wed, 12 Oct 2011 10:21:42 +0800</pubDate><guid>http://www.valvesealing.com/News/xiqidongshuerxian.html</guid><description><![CDATA[<p>中亚－西气东输二线工程干线于近日建成投产。作为中国第一条引进境外天然气资源的大型管道工程，西气东输二线是我们国家迄今为止管线最长、使用管线钢级别最高、管径最大、输气量最大特别是节能减排作用最大的一条管道，西气东输二线工程干线管线的投用，对中国能源消费、天然气管网的形成具有重大的意义，推动中国制造业自主创新，覆盖全国的油气管网建设全面铺就。</p>]]></description><category>行业资讯</category><comments>http://www.valvesealing.com/News/xiqidongshuerxian.html#comment</comments><wfw:comment>http://www.valvesealing.com/</wfw:comment><wfw:commentRss>http://www.valvesealing.com/feed.asp?cmt=102</wfw:commentRss><trackback:ping>http://www.valvesealing.com/cmd.asp?act=tb&amp;id=102&amp;key=65356f9d</trackback:ping></item><item><title>防火防静电球阀</title><author>China@ValveSealing.com (seal)</author><link>http://www.valvesealing.com/News/fanghuofangjingdian.html</link><pubDate>Wed, 28 Sep 2011 11:22:11 +0800</pubDate><guid>http://www.valvesealing.com/News/fanghuofangjingdian.html</guid><description><![CDATA[<p>防火防静电球阀在阀杆与阀体及阀杆与球体之间设置导电弹簧，避免静电打火点燃易燃介质。确保系统安全。耐火结构双重保护，当万一发生火灾而使密封圈烧损时，球阀的各个密封部位均能形成金属对金属的硬密封结构。自动泄压结构，当滞留在阀门中腔的液体介质由于温度升高而气化，从而中腔压力异常升高时，中腔介质能依靠本身的推力推动阀座而自动泄压，从而确保阀门安全。</p>]]></description><category>行业资讯</category><comments>http://www.valvesealing.com/News/fanghuofangjingdian.html#comment</comments><wfw:comment>http://www.valvesealing.com/</wfw:comment><wfw:commentRss>http://www.valvesealing.com/feed.asp?cmt=100</wfw:commentRss><trackback:ping>http://www.valvesealing.com/cmd.asp?act=tb&amp;id=100&amp;key=ec9f565b</trackback:ping></item><item><title>Q941PPL型不锈钢电动球阀</title><author>China@ValveSealing.com (seal)</author><link>http://www.valvesealing.com/News/Q941PPL.html</link><pubDate>Thu, 08 Sep 2011 13:50:34 +0800</pubDate><guid>http://www.valvesealing.com/News/Q941PPL.html</guid><description><![CDATA[<p>Q941PPL型不锈钢电动法兰球阀电动法兰球阀主要用于截断或接通管路中的介质，亦可用于流体的调节与控制，产品广泛应用于化工、石油、轻纺、电力、食品制药、制冷、造纸行业的系统控制。 具有密封性能优良,流量系数大,流阻系数小,结构简单,使用寿命长,便于维修等优点，配用电缸式执行机构。</p>]]></description><category>行业资讯</category><comments>http://www.valvesealing.com/News/Q941PPL.html#comment</comments><wfw:comment>http://www.valvesealing.com/</wfw:comment><wfw:commentRss>http://www.valvesealing.com/feed.asp?cmt=101</wfw:commentRss><trackback:ping>http://www.valvesealing.com/cmd.asp?act=tb&amp;id=101&amp;key=6a988e2a</trackback:ping></item><item><title>金属铸件形成过程</title><author>China@ValveSealing.com (seal)</author><link>http://www.valvesealing.com/News/jinshuzhujian.html</link><pubDate>Mon, 05 Sep 2011 20:52:16 +0800</pubDate><guid>http://www.valvesealing.com/News/jinshuzhujian.html</guid><description><![CDATA[<p>金属液一旦进入型腔，就把热量传给金属型壁。液体金属通过型壁散失热量，进行凝固并产生收缩，而型壁在获得热量，升高温度的同时产生膨胀，结果在铸件与型壁之间形成了&ldquo;间隙&rdquo;。在&ldquo;铸件一间隙一金属型&rdquo;系统未到达同一温度之前，可以把铸件视为在&ldquo;间隙&rdquo;中冷却，而金属型壁则通过&ldquo;间隙&rdquo;被加热。</p>]]></description><category>行业资讯</category><comments>http://www.valvesealing.com/News/jinshuzhujian.html#comment</comments><wfw:comment>http://www.valvesealing.com/</wfw:comment><wfw:commentRss>http://www.valvesealing.com/feed.asp?cmt=99</wfw:commentRss><trackback:ping>http://www.valvesealing.com/cmd.asp?act=tb&amp;id=99&amp;key=41617699</trackback:ping></item><item><title>石棉橡胶密封制品</title><author>China@ValveSealing.com (seal)</author><link>http://www.valvesealing.com/FaLanDian/shimianxiangjiao.html</link><pubDate>Mon, 01 Aug 2011 10:04:37 +0800</pubDate><guid>http://www.valvesealing.com/FaLanDian/shimianxiangjiao.html</guid><description><![CDATA[<p>石棉橡胶密封制品可分成三大类：<br />①垫片类&mdash;&mdash;使用在管道法兰和容器法兰上的板状和片状密封制品；<br />②垫圈类&mdash;&mdash;使用在泵、阀、釜上的模压成型、密封制品；<br />③盘根类&mdash;使用在泵、阀、釜上的绳状和绒状密封制品。</p>]]></description><category>法兰石墨垫</category><comments>http://www.valvesealing.com/FaLanDian/shimianxiangjiao.html#comment</comments><wfw:comment>http://www.valvesealing.com/</wfw:comment><wfw:commentRss>http://www.valvesealing.com/feed.asp?cmt=98</wfw:commentRss><trackback:ping>http://www.valvesealing.com/cmd.asp?act=tb&amp;id=98&amp;key=b1247552</trackback:ping></item><item><title>仪表阀门安装方法</title><author>China@ValveSealing.com (seal)</author><link>http://www.valvesealing.com/News/yibiaoanzhuang.html</link><pubDate>Fri, 13 May 2011 10:36:44 +0800</pubDate><guid>http://www.valvesealing.com/News/yibiaoanzhuang.html</guid><description><![CDATA[<p>所有阀门必须布置在操作方便易于维修的地方，调节阀应尽量靠近与其有关的指示仪表并尽量接近测量元件附近安装、流量计、压力表、温度计、液面计的安装方法</p>]]></description><category>行业资讯</category><comments>http://www.valvesealing.com/News/yibiaoanzhuang.html#comment</comments><wfw:comment>http://www.valvesealing.com/</wfw:comment><wfw:commentRss>http://www.valvesealing.com/feed.asp?cmt=97</wfw:commentRss><trackback:ping>http://www.valvesealing.com/cmd.asp?act=tb&amp;id=97&amp;key=16647868</trackback:ping></item><item><title>泵用机械密封维修</title><author>China@ValveSealing.com (seal)</author><link>http://www.valvesealing.com/News/jixiemifengweixiu.html</link><pubDate>Fri, 18 Mar 2011 08:52:55 +0800</pubDate><guid>http://www.valvesealing.com/News/jixiemifengweixiu.html</guid><description><![CDATA[<p>泵用机械密封检修时：弹簧压缩量过大，可导致摩擦副急剧磨损，瞬间烧损；过度的压缩使弹簧失去调节动环端面的能力，导致密封失效。动环密封圈过紧有害无益。静环密封圈基本处于静止状态，相对较紧密封效果会好些，但过紧也是有害的。轴间泄漏就是叶轮锁母没锁紧，其实导致轴间泄漏的因素较多。</p>]]></description><category>行业资讯</category><comments>http://www.valvesealing.com/News/jixiemifengweixiu.html#comment</comments><wfw:comment>http://www.valvesealing.com/</wfw:comment><wfw:commentRss>http://www.valvesealing.com/feed.asp?cmt=96</wfw:commentRss><trackback:ping>http://www.valvesealing.com/cmd.asp?act=tb&amp;id=96&amp;key=7d113e14</trackback:ping></item><item><title>泵用机械密封的泄漏原因分析</title><author>China@ValveSealing.com (seal)</author><link>http://www.valvesealing.com/News/bengyongjixiemifeng.html</link><pubDate>Wed, 16 Mar 2011 08:49:03 +0800</pubDate><guid>http://www.valvesealing.com/News/bengyongjixiemifeng.html</guid><description><![CDATA[<p>泵用机械密封种类繁多，型号各异，但泄漏点主要有轴套与轴间的密封；动环与轴套间的密封；动、静环间密封；对静环与静环座间的密封；密封端盖与泵体间的密封。</p>]]></description><category>行业资讯</category><comments>http://www.valvesealing.com/News/bengyongjixiemifeng.html#comment</comments><wfw:comment>http://www.valvesealing.com/</wfw:comment><wfw:commentRss>http://www.valvesealing.com/feed.asp?cmt=95</wfw:commentRss><trackback:ping>http://www.valvesealing.com/cmd.asp?act=tb&amp;id=95&amp;key=b73dd015</trackback:ping></item><item><title>O型固定式球阀</title><author>China@ValveSealing.com (seal)</author><link>http://www.valvesealing.com/News/gudingshiqiufa.html</link><pubDate>Sat, 12 Mar 2011 15:24:16 +0800</pubDate><guid>http://www.valvesealing.com/News/gudingshiqiufa.html</guid><description><![CDATA[<p>O型固定式球阀采用固定球设计，相对运动部位均采用磨擦系数极小自润滑材料，因而操作扭矩小；采用全通径或缩径设计，流通阻力小；增加了预紧力弹簧，使得球阀具有自动泄压功能；采用双向金属可动密封结构，具有自动补偿及自洁功能，密封性能优越。</p>]]></description><category>行业资讯</category><comments>http://www.valvesealing.com/News/gudingshiqiufa.html#comment</comments><wfw:comment>http://www.valvesealing.com/</wfw:comment><wfw:commentRss>http://www.valvesealing.com/feed.asp?cmt=94</wfw:commentRss><trackback:ping>http://www.valvesealing.com/cmd.asp?act=tb&amp;id=94&amp;key=f6dc0971</trackback:ping></item><item><title>调节阀阀杆的密封新方法</title><author>China@ValveSealing.com (seal)</author><link>http://www.valvesealing.com/News/diaojiefafagan.html</link><pubDate>Wed, 02 Mar 2011 16:51:22 +0800</pubDate><guid>http://www.valvesealing.com/News/diaojiefafagan.html</guid><description><![CDATA[<p>在强腐蚀、易挥发、有毒有害的工艺条件下，寻找一种可靠、经济和实用的调节阀上阀盖及密封结构形式是保证调节阀可靠工作从而实现生产过程自动控制的关键。在聚四氟乙烯填料密封的上方，设计了一个空腔，并疏入压力稍高的惰性气体，调节阀在使用过程中，即使调节阀的聚四氟乙烯填料密封被破坏，由于气体的压力要稍高于管道中工艺介质的最高压力，强腐蚀、易挥发、有毒有害的气体也无法泄漏出来。</p>]]></description><category>行业资讯</category><comments>http://www.valvesealing.com/News/diaojiefafagan.html#comment</comments><wfw:comment>http://www.valvesealing.com/</wfw:comment><wfw:commentRss>http://www.valvesealing.com/feed.asp?cmt=93</wfw:commentRss><trackback:ping>http://www.valvesealing.com/cmd.asp?act=tb&amp;id=93&amp;key=81ddf9c4</trackback:ping></item></channel></rss>

