Polyethylene thermal insulation steel pipes are a type of lightweight, high-strength, and corrosion-resistant non-metallic pipe. They are manufactured by winding layers of fiberglass with a resin matrix around a rotating mandrel, while quartz sand is evenly distributed between the fibers to form a sand layer. This results in a tube wall structure that is both rational and advanced, maximizing the effectiveness of the materials used. By ensuring sufficient strength for practical applications, this design enhances rigidity and guarantees the stability and reliability of the product. Glass fiber-reinforced plastic sand has gained popularity among users because of its superior chemical corrosion resistance, lightweight yet robust build, lack of scaling, excellent shock resistance, extended service life compared to conventional steel pipes, lower overall costs, ease of installation, and reliability.
The performance features of high-density polyethylene thermal insulation steel pipes are remarkable. First, rigid polyurethane with low thermal conductivity and excellent thermal insulation properties serves as the insulation material, providing outstanding heat retention capabilities. Second, when transporting water at 130°C over a distance of 40 kilometers during regular operation, the temperature loss remains minimal at just about 1°C. Third, these pipes exhibit strong waterproofing and corrosion resistance, eliminating the need for additional trenching; they can be directly buried underground or submerged in water, simplifying construction processes and reducing overall expenses. Fourth, even under low-temperature conditions, these pipes maintain excellent corrosion and impact resistance, allowing them to be buried directly into permafrost layers. Fifth, the outer casing of the high-density polyethylene thermal insulation steel pipe is made from corrosion-resistant HDPE (high-density polyethylene), ensuring immunity to biological and chemical degradation. Sixth, these pipes are available in various diameters ranging from DN20 to DN1200 and corresponding thermal insulation thicknesses, along with matching pipe fittings like elbows, tees, reducers, and fixed joints, tailored to customer specifications. Seventh, the product adheres to the industry standards set for urban construction. Eighth, to ensure the quality of the three-dimensional high-density polyethylene thermal insulation steel pipe, the outer surface of the steel pipe undergoes shot blasting prior to foaming, while the inner surface of the plastic pipe is subjected to corona treatment and rust removal processes, meeting all requirements, including an inner surface tension of the outer shell pipe reaching 50 dynes/cm. Ninth, the high-density polyethylene thermal insulation steel pipe is crafted using high-density polyethylene material, enhanced with various additives such as antioxidants. Quality control of raw materials and finished products is stringent to ensure compliance with the CJ/114-2000 standard and the technical specifications for the outer protective pipe of buried pipelines, thereby improving the overall quality of the outer protective pipe. Detailed technical indicators are outlined in the accompanying table. Tenth, the company is equipped with both imported and domestically produced high-pressure foaming machines and hydraulic pipe threading machines, contributing to the overall enhancement of product quality.
In addition to these features, high-density polyethylene thermal insulation steel pipes offer several other advantages. Their seamless integration with modern infrastructure ensures durability and longevity, making them ideal for long-term projects. The environmental benefits are also noteworthy, as these pipes reduce resource consumption and minimize waste during manufacturing and installation. Furthermore, their adaptability to various terrains and climates makes them a versatile choice for diverse applications. The company’s commitment to innovation and quality ensures that customers receive top-tier products supported by reliable after-sales services. Whether for residential, commercial, or industrial purposes, these pipes deliver exceptional performance and value, making them a preferred solution for many construction projects worldwide.
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