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

Junru Insulated Pipe, Double Insulation 25*50: