firestops collar
... 修建给水、排水及采暖工程的分部、分项工程区分清楚见附录a 阻火圈firestops collar 额定事情压力rated wording pressure ...
fire retardant ring
... fire door ring 火门框 fire retardant ring 阻火圈 fire hole ring 炉门衬圈 ...
FIRE COLLAR
这是供应阻火圈(FIRE COLLAR)的详细页面。发货期限:10,YOUNGEN阻火圈由不锈钢外壳和热膨胀芯材组成,安装时套在PVC等塑料管的管壁上,固定于楼板或墙体部位;...
fire stopping collar
... fire stopping material 防火封堵材料 fire stopping collar 阻火圈 penetration fire stopping system 贯穿防火封堵组件 ...
阻火圈是由金属材料制作外壳,内填充阻燃膨胀芯材,套在硬聚氯乙烯管道外壁,固定在楼板或墙体部位,火灾发生时芯材受热迅速膨胀,挤压UPVC管道,在较短时间内封堵管道穿洞口,阻止火势沿洞口蔓延。