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58问答库 > 70度和280度的电动防火阀一般分别用在什么地方?

70度和280度的电动防火阀一般分别用在什么地方?

2025-03-26 16:17:07

推荐回答（1个）

回答（1）：

8.4.7 排烟风机可采用离心风机或采用排烟轴流风机，并应在其机房入口处设有当烟气温度超过280℃时能自动关闭的排烟防火阀。排烟风机应保证在280℃时能连续工作30min。
8.5.4 防火阀的动作温度宜为70℃。用于通风和空气调节
8.5.5 厨房、浴室、厕所等的垂直排风管道，应采取防止回流的措施或在支管上设置防火阀。

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