防火阀II

产品描述：

防火阀通常安装在有防火要求的通风、空调系统的风管上，在70℃时阀门关闭，手动复位开启，可输出阀门关闭信号，可调节风量大小。

Product description:

fire-fighting regulating valve is installed on the air duct of the ventilation and air conditioning system required which is closed at 70℃ and reset to turn on by hand. It is allowed to output the valve closure signal and regulate the air volume.

产品认证：

本公司所生产的防火阀均已通过消防产品认证证书，质量保证。