The steel clad steel straight-buried insulation pipe consists of an inner working steel pipe, an outer protective steel pipe, and a middle insulation layer. The working steel pipe is coated with two layers of anti-rust paint after sandblasting. The insulation layer is made up of high-temperature fiber felt, ultra-lightweight microporous calcium silicate insulation boards, and polyurethane foam plastic. The outer steel pipe is coated with a sandblasting treatment, then wrapped with six layers of glass fiber and resin anti-corrosion coating.
Steel Clad Steel Insulation Pipe Structure Principle
1. Corrosion Protection Layer: Protects the outer steel pipe from corrosion, extending the service life of the pipe.
2. External Steel Pipe: Protects the insulation layer from groundwater erosion, supports the working pipe, and can bear certain external loads, ensuring the normal operation of the working pipe.
3. Polyurethane Foam Layer: Ensures medium temperature and maintains the outer sheath surface at ambient temperature.
4. Barrier and Reflective Layer: Ensures that organic foam material does not enter the inorganic hard, high-temperature-resistant layer; reflects part of the high-temperature layer's heat.
5. Inorganic rigid insulating layer: Withstands high temperatures, ensures the interface temperature between the inorganic and organic insulating layers, and prevents the foam from carbonization.
6. Friction-reducing layer: Ensures free thermal expansion and contraction movement of the working pipe.
7. Working Pipe: Ensures Normal Flow of Transportation Medium
Performance Features:
Waterproof and moisture-proof
2. Withstanding high temperature and pressure, suitable for medium temperatures up to 350°C and pressures of 2.5 MPa
3. Low heat consumption, superior thermal insulation over any traditional method
4. Strong corrosion resistance; high strength of the protective layer; not easily damaged
5. Long lifespan, up to 30-50 years
The primary concern for the protective pipe of buried pipelines is the reliability of tight waterproofing. Additionally, it must possess good mechanical strength. Steel sleeve pipes are chosen for their high strength and are joined by welding, ensuring a highly reliable waterproof sealing performance. Moreover, their ability to withstand high temperatures is unmatched by other external protective pipes.
Cangzhou Guanghui Pipeline Co., Ltd. boasts multiple anti-corrosion and insulation pipeline production lines as well as pipeline accessories, with strong technical capabilities and professional designers. We can design and produce a variety of anti-corrosion pipeline series in different structural forms for our customers: steel-lined PTFE pipe fittings, 3PE anti-corrosion steel pipes, steel-lined polyethylene pipelines, steel-lined plastic composite pipeline accessories; and insulation pipeline series including polyurethane insulated steel pipes, steel-clad steel insulation pipes, glass fiber-reinforced plastic spiral-wound insulated steel pipes, and pipeline accessories.
Our company has always adhered to the corporate spirit of "Integrity as the foundation, continuous progress," and, with the care and support of colleagues and clients from all walks of life, our product range has continually expanded, and our market presence has grown significantly. We have evolved into a comprehensive enterprise that integrates the processing and sales of steel pipes and fittings. Welcome both new and old customers to visit our factory for guidance. We look forward to joining hands with you to develop and create a brighter future together!
