Product Overview
PE coiled pipe is a continuous coiled pipe made from polyethylene (PE) resin through processes such as extrusion, cooling, traction, and winding. It features good flexibility, corrosion resistance, low-temperature resistance, and trenchless installation, making it widely used in agricultural irrigation, municipal water supply and drainage, gas transmission, and underfloor heating systems.
Product Advantages
- High Flexibility:Can be supplied in coils, saving transportation and storage space, reducing joints, and lowering the risk of leakage;
- Corrosion Resistance:Suitable for acidic and alkaline soils and humid environments;
- Low-Temperature Resistance:Can be installed at -20℃, suitable for cold regions;
- Lightweight and Convenient Installation:Suitable for trenchless technologies such as horizontal directional drilling and pipe jacking;
- Good Hydraulic Performance:Low coefficient of friction, strong water delivery capacity. Compared to traditional metal pipes, it offers a larger flow rate for the same pipe diameter, or allows for the use of smaller diameter pipes to save costs.
Manufacturing Process
- Raw Material Preparation:High-density or medium-density polyethylene granules are selected, and color masterbatch, defoamer, etc., are added in proportion. After uniform mixing, the mixture is dried to remove moisture.
- Extrusion Molding: Raw materials are heated to 170–240℃ in an extruder, melted, and then extruded into tubular shapes through a die.
- Cooling and Shaping: Spray or water bath cooling is used to quickly shape the pipes and maintain dimensional stability.
- Pulling and Winding: After cooling, the pipes are pulled out at a uniform speed by a traction machine and wound into coils by a double-disc winding machine. Single-disc lengths can reach 100–500 meters.
- Cutting and Inspection: After winding to the set length, the pipes are automatically cut. Appearance, wall thickness, and dimensions are inspected manually or online. Qualified products are packaged and stored.
Application Areas
New Energy and Semiconductor:
Suitable for hydrogen energy and photovoltaic coolant transportation; meets the requirements for transporting high-purity ultrapure water, specialty gases, and electrolytes in semiconductor manufacturing.
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Pharmaceutical Industry:
Suitable for transporting pharmaceutical raw materials, liquids, and purified water; features non-toxicity, no leaching, and easy cleaning; flame-retardant conductive pipes support the safe emission of hazardous gases.
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Chemical and Power Industries:
High pressure resistant, corrosion resistant, and high temperature resistant; suitable for power plant steam, circulating water, and pickling processes.
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Environmental Protection and Municipal Engineering:
Used for wastewater collection and treatment and exhaust gas transportation; acid and alkali resistant, anti-aging, and adaptable to complex working conditions such as underground installations; also suitable for building ventilation systems to improve air quality.
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Mining and Metallurgy:
Reliably transports slurry, waste residue, cooling water, and other media; adaptable to humid, high-impurity, and high-temperature smelting environments underground.
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