耐火完整性 meaning in English

fire integrity

Smoke extraction fire fight valve refers smoke extraction system installed in the pipeline , in an open state of the gas pipeline fires when the temperature reached 280 degrees automatically closed in a certain period of time to meet the fire resistance stability and fire resistance integrity
排烟防火阀是指安装在排烟系统管道上，平时呈开启状态，火灾时当管道内气体温度达到280时自动关闭，在一定时间内能满足耐火稳定性和耐火完整性要求。
Fire proof valve refers installed in the ventilation , air - conditioning systems to send , and the road back to the wind , opened in a state of fire when the temperature reached 70 degrees , the gas automatically closed in a certain period of time to meet the fire resistance requirements of the stability and integrity of fire resistance , a possible role of the fire fight valves
防火阀是指安装在通风、空调系统的送、回风管路上，平时呈开启状态，火灾时当管道内气体温度达到70时自动关闭，在一定时间内能满足耐火稳定性和耐火完整性要求，起隔烟阻火作用的阀门。