Polyurethane thermal insulation steel pipe

Executive standards and performance characteristics of polyurethane thermal insulation steel pipes:

1. The use of rigid polyurethane with low thermal conductivity and good thermal insulation performance as thermal insulation material has excellent thermal insulation.
2. When the 130 ºC water is transported to 40 kilometers away after normal operation, the temperature drop is only about 1 ºC.
3. It has strong waterproof and anti-corrosion ability. It can be buried directly in the ground or water without additional pipe trenches. The construction is simple and quick, and the overall cost is low.
4. It also has good corrosion resistance and impact resistance under low temperature conditions, and can be directly buried in the frozen soil layer.
5. The prefabricated thermal insulation pipe uses a corrosion-resistant (HDPE: high-density polyethylene) outer casing, which is not affected by biological and chemical corrosion.
6. According to user needs, we can provide pipes with various diameters and insulation thicknesses between DN20 and DN1200 and matching pipes (elbows, tees, reducers, fixed joints, etc.)
7. The products implement the People's Republic of China Urban Construction Industry Standards CJ / T 114-2000 and CJ / T 115-2001 standards.
8. In order to ensure the trinity of prefabricated direct buried insulation pipe, the outer surface treatment of the steel pipe before foaming, and the corona treatment of the inner surface of the plastic pipe, in which the rust removal level reaches the provisions of Sa2.5 in GB / T 8923-1998, the inner surface tension of the outer shell pipe reaches 50 Dyne / cm.
9. The polyethylene outer protective tube is made of high-density polyethylene material, supplemented with various additives such as antioxidants, and strictly inspects the quality of raw materials and products to ensure that the product quality meets the CJ / 114-2000 standard and is directly buried The technical requirements of the external protective tube improve the overall quality of the external protective tube. The specific technical indicators are shown in the table below.
10. The company is equipped with imported and domestic high-pressure foaming machines and hydraulic pipe threaders, which improves the overall quality of the products