According to the process or the structure of the liquid delivery pipe section, the heat tracing pipe can be prefabricated at factory or in the field, and the joints are connected by welding sleeves, welded and installed together with the oil pipeline.
If the process pipe is faulty or needs to be replaced, just disconnect the connector at both ends of the replacement part and pull out the heating cable to replace the parts. There is no need to completely remove insulation and fittings.