This procedure is applicable to the design, construction, acceptance and operation and maintenance of insulated steam pipelines with working pressure less than or equal to 1.6MPa, temperature less than or equal to 350°C, and directly buried underground. Not suitable for directly buried steam pipes with vacuum insulation structures.
CJJ 104-2005 history
2014CJJ/T 104-2014 Technical specification for directly buried steam heating pipeline In city
2005CJJ 104-2005 Technical specification for directly buried steam heating pipeline in city
CJJ 104-2005 Technical specification for directly buried steam heating pipeline in city was changed to CJJ/T 104-2014 Technical specification for directly buried steam heating pipeline In city.