PU Foam Filling PERT Rigid Insulation Pipe Machine for District Heating
Product Description
The polyurethane PERT pre-insulation pipe-internationally known as a flexible pre-insulated pipe-is defined in Chinese standards as Type II Heat-Resistant Polyethylene Low-Temperature Direct-Buried Heating Pipe.
This production line adopts a one-step continuous foaming process, ensuring stable performance, high production efficiency, and long-term reliability for district heating applications.
Features
Superior Thermal Performance
- High Temperature Resistance: PERT II pipes can tolerate temperatures up to 110°C, ensuring reliable performance in high-temperature heating systems.
- Efficient Heat Transfer: With a 60°C supply water and 45°C backwater temperature, these pipes meet heating demands efficiently, reducing energy consumption and costs.
Quality and Safety
- Smooth and Pure Surface: The pipeline is smooth, free from impurities, and non-polluting, ensuring a clean and safe heating environment.
- Automated Operation: Heating companies can achieve unattended, automated operation, reducing labor costs and increasing operational efficiency.
Construction Advantages
- Simplified Construction: The construction process is simple and convenient, with a 40% reduction in excavation volume, greatly reducing construction costs and time.
- Material Savings: Compared to traditional materials like PERT I and PP-R, PERT II pipes offer significant material savings. For example, compared to PERT I, PERT II can reduce material use by 15%, and compared to PP-R, it can reduce material use by 30%.
Main equipment list
Technical process
Steel pipe loading → Pipe clamping & conveying → PE jacket extruding → PU foaming → Hydraulic correction of foam layer → Spray cooling → Positioner correction → Pipe connector cutting → Electric acceleration pipe removal → Heat shrink band end protection → Finished pipe inspection → Marking, packaging & offloading
| No. |
Equipment Name |
| 1 |
Straight Conveyor |
| 2 |
Pneumatic Tire Pressing Feeder |
| 3 |
Foaming machine (Polyol & Isocyanate Tanks) |
| 4 |
Automatic Loading Dryer |
| 5 |
SJ-120/33 Single-Screw High-Efficiency Extruder |
| 6 |
Jacket Pipe Extruder Die / Tooling |
| 7 |
Calibration Sleeve |
| 8 |
Alignment / Correction Machine |
| 9 |
In-line Cutting Machine |
| 10 |
Spray Cooling System |
| 11 |
Control Cabinet / Operator Panel |
With 23 years of experience, Qingdao Huashida Machinery is a global leader in plastic pipe and anti-corrosion technology. We have served over 400 overseas customers across regions like Central Asia, the Middle East, and Africa.
Our main products are:
1. HDPE jacket pipe for pre-insulated pipe Production Line (110-2000mm)
2. Rigid pre-insulated pipe Production Line
3. Flexible pre-insulated pipe(PERT) production line
4. Steel pipe FBE/2LPE/3LPE anti-corrosion coating line
5. Steel pipe derusting line
6. PE pressure pipe/Water Gas supply pipe production line
6. PP/PE plastic board/sheet/geomembrane production line
7. NBR PVC Thermal insulation tube/plate production line
8.Pipeline anti-corrosion materials and instruments: heat shrink joint coating sleeve, electro-fusion weldable joint sleeve, portable welding gun(extruder), PE PP welding rod.
