1. The rigid polyurethane with low thermal conductivity and good thermal insulation is used as thermal insulation material, which has excellent thermal insulation.
2. When water is transported to 40 kilometers away from 130 C after normal operation, the cooling rate is only about 1 C.
3. It has strong waterproof and corrosion resistance. It can be directly buried in underground or water without additional pipe trenches. It is simple and quick to construct and has low comprehensive cost.
4. It also has good corrosion resistance and impact resistance at low temperature, and can be directly buried in frozen soil.
5. Prefabricated insulating pipes use corrosion-resistant (HDPE: HDPE) outer casing, which is not affected by biological and chemical corrosion.
6. Pipes with various diameters and insulation thicknesses between DN20 and DN1200 and matching fittings (elbows, tees, variable diameter pipes, fixed joints, etc.) can be provided according to user's needs.
7. Product implementation of China's urban construction industry standards CJ/T 114-2000 and CJ/T 115-2001 standards.
8. In order to ensure the trinity of prefabricated directly buried insulating pipes, the external surface treatment of steel pipes before foaming and the corona treatment of the inner surface of plastic pipes are carried out, in which the rust removal grade is up to Sa2.5 stipulated in GB/T 8923-1998, and the inner surface tension of shell pipes is up to 50 dynes/cm.
9. Polyethylene outer protective pipe is made of high density polyethylene material, assisted by various additives such as antioxidants, and the quality of raw materials and products is strictly checked to ensure that the product quality meets the CJ/114-2000 standard and the technical requirements of directly buried outer protective pipe, thus improving the overall quality of outer protective pipe. Specific technical indicators are shown in the table below.
10. The company is equipped with imported and domestic high-pressure foaming machine and hydraulic pipe-piercing machine, which improves the overall quality of products.
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