When you export piping information to a PCF file, the insulation information is also exported by default when the Insulation check box is clicked in the Create Pipeline dialog box. When you create insulation for a pipe segment it is not exported to the PCB file. Use the isogen_symbol_map.csv file to define insulation display on fittings. a new column, insulation, is included in the file. The values allowed are ON or OFF, the default value for fittings is OFF.