What is the main classification of insulated steel pipe? Simply put, there are two more direct classifications: one is PU Insulated Steel Pipe The other type is called steel-in-steel insulated steel pipe. Many customers find the names confusing, as many companies offer insulated steel pipes under different names. In fact, if you remember these two main categories, they are easy to distinguish when purchasing. What is PU insulated steel pipe? PU insulated steel pipe, full name: HDPE plastic-jacketed PU foam prefabricated direct-buried insulated pipe, is assembled outward in sequence from the carrier pipe that conveys the medium, the PU insulation layer, and the polyethylene plastic outer jacket.
What is steel-in-steel insulated steel pipe? Steel-in-steel insulated steel pipe is assembled outward in sequence from: a carrier pipe conveying the medium, a glass-wool thermal insulation layer, an aluminum-foil reflective layer, stainless steel fastening bands, sliding guide supports, an air insulation layer, an outer protective steel pipe, and an external anti-corrosion layer.
