A pipeline engineering line set details process lines with identifiers, diameters, materials, insulation, and tracing

http://lotlab.net/index.php/When_to_Repair_or_Replace_an_Existing_HVAC_Line_Set

A pipeline engineering line set details process lines with identifiers, diameters, materials, insulation, and tracing, tying into P&IDs so changes propagate to isometrics and material takeoffs.