PU Foam Insulated Pipe Production Line with HDPE Jacket for Pre-Insulated Pipelines
This professional extrusion line is dedicated to manufacturing large-diameter PE outer jacket pipes for pre-insulated thermal pipelines.The polyurethane (PU) pre-insulated pipe system, manufactured using an advanced vacuum calibration process, is engineered to deliver excellent thermal insulation performance and long-term operational reliability.This system is composed of three main layers: an inner steel pipe, a polyurethane (PU) foam insulation layer, and a high-strength HDPE protective outer jacket. Pipe diameter range: 110-2200mm.Its widely used in district cooling, district heating, oil & gas, and large-scale infrastructure projects across the Middle East., which is widely used in central heating, oil, nature gas and other industrial area.
Why Choose Our Production Line?
| No. | Key Advantage | Description |
|---|---|---|
| 1 | Vacuum Calibration Technology | Ensures precise dimensions and stable pipe quality. |
| 2 | Large Diameter Capability – Up to 2200 mm | Suitable for district cooling, heating, oil & gas, and other large-scale pipeline projects. |
| 3 | High Insulation Performance | Uniform PU foam structure helps reduce heat loss and improve thermal insulation. |
| 4 | Reliable in Harsh Environments | Stable operation under high-temperature and desert conditions. |
| 5 | High Automation | Reduces labor requirements and ensures stable production and consistent product quality. |
| 6 | Turnkey Solution | Complete production line supply for faster installation, commissioning, and project startup. |
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| Style | PE-110/500 | PE-655/1380 | PE-960/1860 | PE-1155/2200 |
| Main Extruder | SJ-75/33 | SJ-120/33 | SJ-150/33 | SJ-150/33 |
| Pipe diameter | Φ110-600mm | Φ655-1380mm | Φ960-1860mm | Φ1155-2200mm |
| Capacity | 250-350kg/h | 700-900kg/h | 1000-1200kg/h | 1350kg/h |
| Installed power | 160kw | 480kw | 580kw | 650kw |
| Length | 26m | 36m | 45m | 45m |
High-efficiency single screw extruder
---Single screw is with barrier & mixing head; new model barrel with slotting (channel), Both make the security of good jellification, large output and stable performance.
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Die-Head
---Die-head is mainly composed of mandril, neck mold, spiral body, cover, die-head body, bolts, and heating rings.
The inside surface touching with plastic materials is polished and chrome plated to ensure plastic materials flow smoothly and to ensure no rusting. The uniformity of pipe wall thickness can be adjusted by bolts. The copper calibrating sleeve fixed in the die-head is mainly used to cool down the fresh pipe and to calibrate the pipe outer diame
Vacuum Calibration Tank
The vacuum calibration tank is mainly composed of a frame, stainless steel tank, vacuum system, spray cooling system, position adjustment device. The vacuum pump exhausts the air from the sealed tank to pressurize the fresh pipe cling to calibrate the copper sleeve and to calibrate the outer diameter. Spray nozzles spray cooling water from all directions on pipe surface to cool down the pipe promptly.
Haul-off Machine
The haul-off machine is mainly composed of a driving device, track, clamping structure, adjusting system, side plate and foundation bed. Haul-off caterpillars are driven by AC motor with frequency conversion control to adapt to different extrusion speeds.
An automatic length measuring device realizes cutting at a set length.
Chipless cutting
It adopts the blade punching principle to realize no-dust cutting. It is mainly composed of a cutting device, clamping device, structure synchronous movement device and frame.
Control system
ABB frequency converter or EUROTHERM speed controller
Japan RKC temperature controller
AC contactors
A controlling system can be designed according to customers' requirements.
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