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| Warranty: | 12 Months |
| Product Type: | PE Pipe |
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PUR Spray PE Wrap Pre-Insulated Pipe Production Line
Energy-Efficient Solution for Heating, Cooling & Oil Transport Applications
The Polyurethane (PUR) Spray Polyethylene (PE) Wrap Pre-Insulated Pipe Production Line is designed for manufacturing polyurethane pre-fabricated direct-buried thermal insulation pipes. These pipes are widely used in:
District heating networks
Industrial cooling systems
Crude oil and chemical transportation pipelines
The rigid polyurethane spray PE-wrapped pre-fabricated direct-buried insulation pipe is composed of:
Working Steel Pipe - conveys the medium
Rigid Polyurethane Foam Insulation Layer - provides thermal insulation
Polyethylene Outer Casing (wound) - offers mechanical protection and corrosion resistance
Application Scope
Anti-corrosion & thermal insulation pipelines for heating, cooling, and crude oil transportation
Medium temperature: ≤ 120°C (peak ≤ 140°C)
Medium pressure: ≤ 2.5 MPa
Installation methods: Direct burial (primary), trench laying, or overhead installation
Consistent and controllable polyurethane density
Void-free rigid polyurethane foam
High bonding strength: Shear strength (friction) between foam and PE casing > 200 KPa
Customizable design: Adjustable thickness of insulation layer and PE casing
High degree of automation in production
| No. | Nominal Diameter (DN) | Insulation Layer Thickness (mm) | Outer Casing Diameter (mm) | Min. Outer Casing Thickness (mm) |
|---|---|---|---|---|
| 1 | 500 | 30-60 | 598-658 | 4.5 |
| 2 | 600 | 30-60 | 700-760 | 5.0 |
| 3 | 700 | 30-60 | 790-850 | 5.0 |
| 4 | 800 | 30-60 | 891-951 | 5.5 |
| 5 | 900 | 30-60 | 992-1052 | 6.0 |
| 6 | 1000 | 30-60 | 1093-1153 | 6.5 |
| 7 | 1100 | 30-60 | 1194-1254 | 7.0 |
| 8 | 1200 | 40-100 | 1316-1436 | 8.0 |
| 9 | 1400 | 50-100 | 1538-1678 | 9.0 |
| 10 | 1620 | 50-100 | 1738-1840 | 10.0 |
Steel Pipe Outer Wall Shot Blasting Line
Prepares steel pipe surface for optimal polyurethane bonding
Polyurethane Spray Molding Line
High-pressure spray technology for uniform foam application
Polyethylene Sheet Extruding & Winding Line
Continuous extrusion and spiral winding of PE casing
Water Cooling Line
Controlled cooling for dimensional stability
End-Cutting Equipment
Precision trimming of finished pipes
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