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class="now_position">  <strong>您正在访问:</strong> <a href="http://www.evpdecor.com/" target="_blank">网站首页</a> >> <a href="/Technology/" target="_blank">技术中?/a> >> <a href="/Article/ArticleList32/" target="_blank">电气百科</a> >> <span>正文</span></div> <!-- main_content begin--> <div id="fg4tlluecq" class="maincontent"> <!-- left begin --> <div id="fg4tlluecq" class="news_left"> <div id="fg4tlluecq" class="brand_news_details"> <h1>电气百科:YARWAY止回阀如何安装?/h1><table style="border-bottom:1px dotted #e4e4e4;" align="center"><tr><td><div id="fg4tlluecq" class="news_mes">文章来源:威斯特传感器仪表有限公?作者:??点击?span id="HitNum"></span>?时间?span id="dTime">2019/8/23 17:04:50</span><input type="hidden" id="ID" value="100903982"/><input type="hidden" id="TypeID" value="2"/></div> </td> <td><div id="ckepop"></div></td></tr></table><div id="Content" style="display:none;">[电气百科:YARWAY止回阀如何安装?]:美国YARWAY止回阀是指启闭件为圆形阀瓣并靠自身重量及介质压力产生动作来阻断介质倒流的一种阀门。阀瓣运动方式分为升降式和旋启式。升降式止回阀与截止阀结构类似,仅缺少带动阀瓣的阀杆。介质从进口?下侧...</div><div id="fg4tlluecq" class="brand_news_con"><p style="text-indent:2em;">吉林快3 美国YARWAY止回阀是指启闭件为圆形阀瓣并靠自身重量及介质压力产生动作来阻断介质倒流的一种阀门。阀瓣运动方式分为升降式和旋启式。升降式止回阀与截止阀结构类似,仅缺少带动阀瓣的阀杆。介质从进口?下侧)流入,从出口端(上侧)流出。当进口压力大于阀瓣重量及其流动阻力之和时,阀门被开启。反之,介质倒流时阀门则关闭?</p> <p style="text-indent:2em;">吉林快3 美国YARWAY止回阀的产品规格: </p> <p style="text-indent:2em;"> 认证 ASME B31.1,CE,PED </p> <p style="text-indent:2em;"> 结束连接 套筒焊接,螺?</p> <p style="text-indent:2em;">吉林快3 应用 锅炉,锅炉,生物质锅炉和动力锅炉,清洁蒸汽,泵,阀门和歧管,HRSG,一般服?</p> <p style="text-indent:2em;">吉林快3 身体设计 短图?</p> <p style="text-indent:2em;"> 材料 316不锈钢,合金,碳钢,金属,不锈钢,钢,不锈钢 </p> <p style="text-indent:2em;"> 工作温度 高温,大?00 F?04 C?</p> <p style="text-indent:2em;"> 压力等级 ASME </p> <p style="text-indent:2em;">吉林快3 流程连接类型 SWE,螺?</p> <p style="text-indent:2em;"> 座椅/密封类型 金属 - 金属 </p> <p style="text-indent:2em;"> 关闭?第V类(FCI 70-2?</p> <p style="text-indent:2em;">吉林快3 标准 ASME B16.34 </p> <p style="text-indent:2em;"> 样式 后止回阀 </p> <p style="text-indent:2em;">吉林快3 阀门尺?NPS 1-1 / 2 / DN 40,NPS 2 / DN 50,NPS 1/2 / DN 15,NPS 1-1 / 4 / DN 32,NPS 1 / DN 25 </p> <p style="text-indent:2em;">吉林快3 阀门尺寸标?NPS </p> <p style="text-indent:2em;"> 媒体 热水,液体,蒸汽,水 </p> <p style="text-indent:2em;"> 美国YARWAY止回阀的特征: </p> <p style="text-indent:2em;"> 圆盘采用弹簧加载,可在任何位置正向闭合?</p> <p style="text-indent:2em;">吉林快3 圆盘经过硬化,研磨和研磨,以确保在阀门的全压力温度范围内无泄漏密封?</p> <p style="text-indent:2em;"> 座椅上覆盖着Stellite或相同的表面硬化层?</p> <p style="text-indent:2em;">吉林快3 整体式座椅表面硬化层直接覆盖在车身底座材料上,消除了座椅后面任何泄漏的可能性?</p> <p style="text-indent:2em;">吉林快3 平面,精密加工和搭接座椅表面可消除高冲击座椅的损坏?</p> <p style="text-indent:2em;"> 所有内表面都经过精确加工,以提供性能?</p> <p style="text-indent:2em;"> 套筒焊接端标准?</p> <p style="text-indent:2em;"> 标准车身和发动机罩材料为碳钢(ASME SA105)?</p> <p style="text-indent:2em;"> 符合ASME 16.34和ASME锅炉和压力容器规范的第I部分?</p> <p style="text-indent:2em;"> 最后,我再为大家介绍一下美国YARWAY止回阀如何安装?</p> <p style="text-indent:2em;"> 一、旋启式止回阀:美国YARWAY旋启式止回阀的阀瓣呈圆盘状,绕阀座通道的转轴作旋转运动,因阀内通道成流线型,流动阻力比升降式止回阀小,适用于低流速和流动不常变化的大口径场合,但不宜用于脉动流,其密封性能不及升降式。旋启式止回阀分单瓣式、双瓣式和多半式三种,这三种形式主要按阀门口径来分,目的是为了防止介质停止流动或倒流时,减弱水力冲击?</p> <p style="text-indent:2em;">吉林快3 二、升降式止回阀:阀瓣沿着阀体垂直中心线滑动的止回阀,美国YARWAY升降式止回阀只能安装在水平管道上,在高压小口径止回阀上阀瓣可采用圆球。升降式止回阀的阀体形状与截止阀一样(可与截止阀通用),因此它的流体阻力系数较大。其结构与截止阀相似,阀体和阀瓣与截止阀相同。阀瓣上部和阀盖下部加工有导向套简,阀瓣导向简可在阀盏导向简内自由升降,当介质顺流时,阀瓣靠介质推力开启,当介质停流时,阀瓣靠自垂降落在阀座上,起阻止介质逆流作用。直通式升降止回阀介质进出口通道方向与阀座通道方向垂直;立式升降式止回阀,其介质进出口通道方向与阀座通道方向相同,其流动阻力较直通式小?</p> <p style="text-indent:2em;"> 三、碟式止回阀:阀瓣围绕阀座内的销轴旋转的止回阀。美国YARWAY碟式止回阀结构简单,只能安装在水平管道上,密封性较差?</p> <p style="text-indent:2em;"> <br /> </p></div><div id="fg4tlluecq" class="meneame"><span class="disabled">< </span><span class="current">1</span> <span class="disabled">> </span></div> <div id="fg4tlluecq" style="text-align: center;padding-top: 10px;"><img src="/images/code.jpg" alt="关注有惊?" /></div> <div id="fg4tlluecq" class="news_bot_mes">中国工业电器网:此内容转载于合作媒体或互联网其它网站,中国工业电器网登载此文出于传递更多信息之目的,并不意味着赞同其观点或证实其描述!</br>新闻、技术文章投稿QQ?28246603 邮箱:news@evpdecor.com</div> <h2 class="related">相关阅读</h2> <ul class="related_con"> <li>· <a href="/text/32/190919/AD100904922_1.html" 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