1, the directly buried polyurethane foam insulation pipe is selected as rigid polyurethane foam as its insulation layer, the rigid polyurethane foam has a closed porosity of about ninety-seven percent, and its water absorption rate is very low. It avoids the immersion of external water, corrosive liquids and microbes, and prevents the development and consumption of microorganisms. One step guarantee.

2、硬質聚氨酯泡沫塑料保溫層的保溫性能極高，其熱損失僅為傳統(tǒng)管材的百分之二十五，長期大量的運轉運用，能夠儉省大量的能源，從而降低了能源的本錢。

2. The thermal insulation performance of rigid polyurethane foam plastic insulation layer is very high, and its heat loss is only 25% of the traditional pipe material. Long-term and large-scale operation can save a lot of energy, thus reducing the cost of energy.

3、由于直埋式聚氨酯泡沫保溫鋼管具有防水防腐蝕的性能，所以在施工過程中不需求敷設管溝，能夠直接埋入公開或水中，縮短了施工周期，降低了施工本錢。

3, since the directly buried polyurethane foam insulation pipe has the function of waterproofing and corrosion protection, there is no need for laying trench in the construction process, which can be directly embedded in open or water, shortening the construction period and reducing the construction cost.

4、依據(jù)國外相關材料調查顯現(xiàn)，以正確的辦法運用預制直埋式保溫鋼管，能夠使其運用壽命到達30年50年左右。

4. According to the investigation of foreign related materials, the use of prefabricated direct-buried insulation steel pipe in the right way can make its service life reach about 30 to 50 years.

5、易于施工、施工周期短、操作簡單快捷、一次成型等優(yōu)勢特性。

5. Easy to construct, short construction period, simple and fast operation, one-time forming and other advantages.