按其功能可分为防火阀和排烟防火阀两大类。
By different functions it can be categorized into smoke damper and smoke fire damper.
温度熔断器是（排烟）防火阀中的重要部件之一，而其中的易熔片又是熔断器的关键元件。
Temperature-dependent fuse is one of the important parts in (smoke) fire dampers, and the fusible alloy is the key element of the fuse.
本文对暖通设计中通风空调及排烟系统的划分、防火阀的设置等工程设计中常见的问题进行了探讨。
The paper discusses some common problems in the engineering design of the classification of air-conditioner system and smoke ventilation system as well as the set up of the fire valve.
讨论了几个现行规范在防火阀设置问题上规定不明确、不一致或不准确之处，提出了具体的修改建议。
Discusses some unclear, inconsistent or inaccurate points of fire damper installation in the related codes governing building fire protection, and offers the author's recommendations for revision.
气体灭火控制器主要具有各种故障报警及关闭风机、防火阀等联动功能，并实现建手动、自动、报警、故障、喷放等信号反馈至消防联动控制中心。
Gas fire controller has various functions such as failure alarm, closing blower fan and fire damper, and can feedback manual, automatic, alarming, failure and spray signals to the fire control centre.
不同于常规变电站的防排烟设计，电气设备间的消防设计不仅考虑火灾后的排烟，而且考虑人员的安全疏散，排烟风机和各种防火阀既能集中控制，亦可就地控制。
The smoke proof design of the electric equipment room is done with the considerations not only of the ventilating after fire, but also of the operators evacuating.
不同于常规变电站的防排烟设计，电气设备间的消防设计不仅考虑火灾后的排烟，而且考虑人员的安全疏散，排烟风机和各种防火阀既能集中控制，亦可就地控制。
The smoke proof design of the electric equipment room is done with the considerations not only of the ventilating after fire, but also of the operators evacuating.
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