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                成都厨房排烟Ψ管道

                成都◥厨房排烟管道安装要求:1.当选择金属风管或其他内外表面光滑的风管▓时,机◥械加压送风防烟排烟管道内的风速不应大于20m/s,当选…

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                成都厨房排烟管道安装要求:

                成都厨房排烟管道

                1.当选择金属风管或其他内外表面光滑的风管时,机械加压送风防烟排烟管道内的风速不应大于20m/s,当选择内外表面抛光的混凝土或砖风管时,不应大于15m/s。

                2.机械增压空气供应ぷ防烟管道、排烟管道、排烟口和排气阀必须由不燃材料制成。

                排烟管道可燃材料之间的间隔不应小于0.15米。

                3.当金属风管为钢管时,钢板厚度不』应小于1.0毫米。

                4.用于防烟的机械加压空气供应排烟管道不应穿过防火〓墙。当需@ 要通过时№,应在其穿墙处设置能在烟气温度高于280℃时自动关闭的防火阀。

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