The closed cell rate of the polyurethane foam used in our products is around 92%. With low thermal conductivity and low water absorption, combined with a protective shell made of high-density polyethylene or glass fiber with excellent waterproofing properties, it alters the traditional situation of "wearing wet cotton robes" in the installation of heating pipelines in trenches, significantly reducing the overall thermal loss of the heating pipelines. The heat loss of the heat network is 2%, which is less than the international standard requirement of 10%. It has good corrosion resistance and insulation properties, with a long service life. The buried thermal insulation pipe, with its polyurethane rigid foam insulation layer tightly bonded to the outer surface of the steel pipe, effectively prevents the infiltration of air and water, providing excellent corrosion protection. PPR foam-insulated pipe.

Junru PPR Insulation Pipe, Corrosion-Resistant, DN65