| Customization: | Available |
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| Warranty: | 12 Months |
| Product Type: | PE Pipe |
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The polyurethane (PUR) spray polyethylene (PE) wrapping pre-insulated pipe production line is designed for manufacturing prefabricated direct-buried thermal insulation pipes. These pipes are widely used in heating, cooling, and crude oil transportation systems, offering superior energy efficiency and durability.
The rigid polyurethane spray PE-wrapped prefabricated pipe consists of three layers:
Working Steel Pipe: Transports the medium (e.g., hot water, steam, or crude oil).
Sprayed Polyurethane Foam Insulation Layer: Provides excellent thermal insulation with uniform density and strong adhesion.
Wound Polyethylene (PE) Outer Casing: Ensures corrosion resistance and mechanical protection.
Heating & cooling pipelines (district heating, HVAC).
Crude oil transportation pipelines.
Operating Conditions:
Temperature: ≤120°C (peak ≤140°C).
Pressure: ≤2.5MPa.
Installation: Primarily for direct burial, but also suitable for trench or overhead laying.
√ Uniform & Controllable Polyurethane Density - Ensures consistent thermal performance.
√ No Void Spaces - Eliminates heat loss and enhances structural integrity.
√ High Shear Strength (>200 kPa) - Strong bonding between PU foam and PE casing.
√ Adjustable Thickness - Customizable insulation and outer casing per design requirements.
√ Fully Automated Production - Improves efficiency and reduces labor costs.
| DN (mm) | Insulation Thickness (mm) | PE Casing Diameter (mm) | Min. Casing Thickness (mm) |
|---|---|---|---|
| 500 | 30-60 | 598-658 | 4.5 |
| 600 | 30-60 | 700-760 | 5.0 |
| 700 | 30-60 | 790-850 | 5.0 |
| 800 | 30-60 | 891-951 | 5.5 |
| 900 | 30-60 | 992-1052 | 6.0 |
| 1000 | 30-60 | 1093-1153 | 6.5 |
| 1100 | 30-60 | 1194-1254 | 7.0 |
| 1200 | 40-100 | 1316-1436 | 8.0 |
| 1400 | 50-100 | 1538-1678 | 9.0 |
| 1620 | 50-100 | 1738-1840 | 10.0 |
Energy-efficient insulation for sustainable infrastructure.
Robust automation reduces waste and increases output.
Customizable solutions for diverse pipeline needs.
Qingdao Huashida Machinery Co., Ltd was established in 2003. Since its inception, Huashida has focused on plastic polyurethane insulation pipe production line, 3PE anti-corrosion pipe production line, large diameter underground pipe production line and plastic pipe joints for 20 years. We always attach great importance to research and development,collaborating closely with Beijing University of chemical technology, Qingdao university of technology and scientific research institutions. by absorbing advanced technology home and abroad, after 20 years of endeavor we now rank one of the top 3 manufacturers in the industry in China. Huashida machines have been well received in Saudi Arabia, Kazakhstan, Uzbekistan, United Arab Emirates, Turkey, Russia, etc.
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