BIMobject 类别管道 - 阀门
IFC 分类阀门
Uniclass 2015 代码Pr_65_54_95_05
Uniclass 2015 说明Backflow prevention devices
CSI MasterFormat 2014 代码40 05 67
CSI MasterFormat 2014 标题Specialized Pressure and Flow-Control Valves
OmniClass 编号23-27 31 11
OmniClass 标题Backflow Preventors