Polyurethane foam pipe insulation is a highly efficient thermal insulation material, which is widely used in various thermal insulation projects. Its core structure includes three layers: working steel pipe layer, polyurethane insulation layer and high-density polyethylene protective layer.
Structural Composition
1. Working Steel Pipe Layer:
Seamless steel pipe, spiral steel pipe or straight seam steel pipe is usually selected according to engineering requirements and pressure level. These steel pipes are shot blasted and rust-removed to ensure a clean surface to improve adhesion.
2. Polyurethane Insulation Layer:
Rigid polyurethane foam is injected between the steel pipe and the outer sheath through a high-pressure foaming machine to form a closed-cell structure with low thermal conductivity, good thermal insulation and waterproof and moisture-proof capabilities.
3. High-Density Polyethylene Protective Layer:
As the outermost layer, it has high strength and corrosion resistance, protecting the internal structure from mechanical damage and chemical erosion.
Performance Characteristics
1. Excellent thermal insulation performance: The thermal conductivity of polyurethane foam is extremely low, which can effectively reduce heat loss and is particularly suitable for insulation needs in high temperature environments.
2. Significant energy-saving effect: High closed-cell rate, low water absorption, and the tight waterproof performance of the high-density polyethylene outer sheath can greatly reduce heat loss and improve energy utilization efficiency.
3. Simple and efficient construction: Polyurethane insulation pipes are pre-made into combined insulation pipes in the factory, which are easy to install on site and shorten the construction period.
4. Strong durability: All layers of materials have excellent pressure resistance, corrosion resistance and aging resistance, ensuring long-term and stable operation of the pipeline.
Application Scenarios
Polyurethane foam pipe insulation is widely used in liquid and gas transmission pipelines, chemical pipelines, thermal insulation projects, petroleum, central heating networks, central air conditioning ventilation ducts and municipal engineering. Its excellent thermal insulation performance and durability make it an ideal choice for these applications.
Our Factory
In Yanshan, Cangzhou, a famous city for pipeline equipment manufacturing, Hebei Yugang Pipeline Manufacturing Co., Ltd. is writing an industry legend. Founded in 2005, the company achieved a brilliant transformation in 2014 after ten years of refinement, and built a modern group covering the entire pipeline industry chain. It now focuses on high-end products such as 3PE anti-corrosion steel pipes and large-diameter spiral pipes for oil and gas transportation. It is equipped with 16 automated production lines with an annual production capacity of 300,000 tons. The company has not only passed the ISO9001 international certification, but also obtained three American Petroleum Institute certifications such as APISpec5L. In 2024, its technological innovation capabilities will be recognized by the country.
Frequently Asked Questions (FAQ)
Q: What types of steel pipes does your company mainly produce?
A: We specialize in the production of various types of steel pipes, including seamless pipes, welded pipes (straight seam/spiral), structural pipes, fluid conveying pipes, boiler pipes, machined pipes, scaffolding pipes, pipeline pipes, etc. The materials cover carbon steel, alloy steel, stainless steel, and comply with national standards (GB), American standards (ASTM/ASME), European standards (EN), German standards (DIN), Japanese standards (JIS), API standards, etc.
Q: Can you accept orders for custom specifications of steel pipes?
A: Yes, custom production is our core advantage. We can customize the outer diameter, wall thickness, length, material according to your requirements, and provide special heat treatment, surface treatment (such as galvanizing), end treatment and strict non-destructive testing levels. Contact our engineers now to discuss your customization needs.
Q: How do you ensure product quality? What certifications do you have?
A: We strictly implement full-process quality control: from raw material inspection, process monitoring to finished product testing. We hold ISO 9001 quality management system certification, our products meet international mainstream standards, API pipes hold valid API monogram licenses, and can provide third-party inspection reports
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