Direct-burial thermal insulation pipes reduce the construction cost, which is very significant for cost issues. If the budget is insufficient, cost control is essential, and prefabricated direct-burial pipelines are indeed a good choice. According to estimates by relevant departments, in some cases, dual-pipe heating pipelines with such a structure can reduce the engineering cost by 25%. Using glass fiber reinforced plastic as the insulation layer and high-density polyethylene as the protective layer can offer approximately a 10% reduction in cost.

2. Low heat loss. From a generous perspective, it saves energy. The thermal conductivity coefficient of the high-temperature prefabricated buried insulation steel pipe is set at 0.013~0.03, significantly lower than the previously common pipe insulation data. This is why heat loss can be reduced, and the insulation effect can be increased many times over. Additionally, the water absorption rate is low. With a foam layer in the polyurethane foam insulation up to 93%, it's like wearing a wet cotton coat, which not only reduces the heat loss of all pipes but also reduces the loss of the heat network.

3. Direct-burial insulated steel pipes boast excellent corrosion resistance and insulation properties, ensuring long-lasting use for many years, with a lifespan exceeding 30 years. The comprehensive capital has decreased again! With proper internal management, the service life can still reach 50 years!