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立式止回阀根据其结构和安装方式有所区分

LISHIZHIHUIFAGENJUQIJIEGOUHEANZHUANGFANGSHIKEFEN:   

1、LISHIZHIHUIFADEFABANCHENGYUANPANZHUANG,RAOFAZUOTONGDAODEZHUANZHOUZUOXUANZHUANYUNDONG,YINFANEITONGDAOCHENGLIUXIANXING,LIUDONGZULIBISHENGDIESHIZHIHUIFAXIAO,SHIYONGYUDILIUSUHELIUDONGBUCHANGBIANHUADEDAKOUJINGCHANGHE,DANBUYIYONGYUMAIDONGLIU,QIMIFENGXINGNENGBUJISHENGJIANGSHI。DIESHIZHIHUIFAFENDANBANSHI、SHUANGBANSHIHEDUOBANSHISANZHONG,ZHEISANZHONGXINGSHIZHUYAOANFAMENKOUJINGLAIFEN,MUDESHIWEILEFANGZHIJIEZHITINGZHILIUDONGHUODAOLIUSHI,JIANRUOSHUILICHONGJI。   

2、立式止回阀:阀瓣沿着阀体垂直中心线滑动的止回阀,
消声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。消声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。直通式蝶式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。   

3、LISHIZHIHUIFA:FABANWEIRAOFAZUONEIDEXIAOZHOUXUANZHUANDEZHIHUIFA。DIESHIZHIHUIFAJIEGOUJIANDAN,ZHINENGANZHUANGZAISHUIPINGGUANDAOSHANG,MIFENGXINGJIAOHAO。   

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