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防火止回阀贴砖前装吗

浏览：34次 | 提问时间： 08-04 11:45
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6个答案
挂号思念 08-04 11:45

1、垂直运输时烟道应采取保护措施，并必须两点起吊。2、定出烟道位置中心线，在预留孔洞中由屋面引下，四根垂直中心线，在楼板平面上弹出2条正交的中心线。3、烟道到现场后，先将烟道吊到屋面，在烟道上弹出的四面中心线，然后用电葫芦将烟道从预留洞缓缓放下，由上而下逐层安装，将烟道就位，校正中心线。要求烟道中心线与预留洞中心线*偏差不大于1cm，上下烟道口中心线偏差不大于1cm，每节烟道必须保证层层垂直。4、安装烟道时应每层做承重处理，安装支承钢筋2根?直径≥14mm。5、烟道安装好后，在每一根烟道预留止回阀洞口处安装 防火型烟道止回阀 ，先用专用胶水搅拌水泥，涂满止回阀的边缘，然后安装在预留止回阀洞口处。6、施工时应在各层预留洞口处用盖板遮挡，保证施工安全，防止建筑*掉入烟道中。7、本烟道为薄壁构件，在搬运和安装时应轻抬轻放，不得冲击碰撞，不得在管道上堆放其他重物和行走。8、出屋面烟道应在屋面保温隔热层、防火层施工前进行。9、严禁将燃气热水器排烟道系统使用。

我们都是小太阳 08-04 11:54

要装止阀、闸阀

无厘头 08-04 12:02

行接合器打水冲啊主管压力般都1MPA般用蝶阀都用闸阀

良心我没有凉心 08-04 12:10

1、垂直运输时烟道应采取保护措施，并必须两点起吊。2、定出烟道位置中心线，在预留孔洞中由屋面引下，四根垂直中心线，在楼板平面上弹出2条正交的中心线。3、烟道防火止回阀到现场后，在烟道上弹出的四面中心线，然后用电葫芦将烟道从预留洞缓缓放下，校正中心线。4、安装烟道防火止回阀时应每层做承重处理，安装支承钢筋2根?直径≥14mm。5、烟道防火止回阀安装好后，在每一根烟道防火止回阀预留止回阀洞口处安装 防火型烟道止回阀 ，先用专用胶水搅拌水泥，涂满止回阀的边缘，然后安装在预留止回阀洞口处。6、施工时应在各层预留洞口处用盖板遮挡，保证施工安全，防止建筑*掉入烟道中。7、出屋面烟道应在屋面保温隔热层、防火层施工前进行。8、严禁将燃气热水器排烟道防火止回阀系统使用。

哭出声 08-04 12:19

应安装在止回阀后，确保系统侧压力正常。【补充】：水泵出口处安全阀开启压力应根据你的管道承受的压力来确定，安全阀开启压力设定小于管道压力。还有安全阀的位置应安装在管道或受保护对象压力敏感的地方。和压力源（水泵）保持适当距离，太近会引起阀门频跳，对压力有影响。

谁的影 08-04 12:27

般家庭自用买都坏油烟固*久都坏

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