PE-Vacuum Calibration Insulation Pipe Production Line
This advanced machinery is widely recognized for producing pre-insulated pipes used in energy-saving trenchless pipeline installations. These pipes feature rigid polyurethane foam (PUF) insulation within a protective outer casing, ideal for heating networks with a working pressure of 1.6 MPa and water temperatures up to 403°K (130°C), with short-term tolerance up to 423°K (150°C).
The "pipe-in-pipe" structure consists of:
Carrier Pipe: Steel or galvanized steel.
Insulation Layer: Polyurethane foam (PUF).
Outer Casing: High-density polyethylene (HDPE) for underground installations or galvanized steel for above-ground applications.![]()
Advantage
Enhanced Reliability: The PUF insulation system ensures durability and operational efficiency.
Remote Monitoring: Integrated condition monitoring allows early detection and repair of coolant leaks, preventing accidents common in other thermal network designs.
Energy Efficiency: Optimized for trenchless laying, reducing installation costs and environmental impact.
High Performance: Superior stiffness, pressure resistance, and surface quality due to vacuum calibration technology.![]()
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Product Parameters
| PE-365/760 | PE-420/960 | PE-850/1372 | PE-960/1680 | |
| Main extruder | SJ-90/33 | SJ-90/33 | SJ-120/33 | SJ-150/33 |
| Pipe diameter (mm) | Φ365-960 | Φ420-960 | Φ850-1372 | Φ960-1680 |
| capacity (kg/h) | 550-700 | 550-700 | 700-900 | 800-1200 |
| Installed power (kw) | 360 | 380 | 440 | 580 |
| Length (m) | 35 | 36 | 40 | 48 |
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Qingdao Huashida Machinery Co., Ltd. is a professional manufacturer specializing in plastic pipe production lines and pipeline anti-corrosion equipment, with over 21 years of industry experience.
We focus on providing efficient, reliable, and intelligent pipeline solutions for global customers in energy, municipal engineering, and infrastructure sectors.
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We design and manufacture a full range of equipment and materials, including:
1 HDPE jacket pipe extrusion lines for pre-insulated pipes (110–2000 mm)
2 Rigid and flexible pre-insulated pipe production lines (PU / PERT)
3 Steel pipe anti-corrosion coating lines (FBE / 2LPE / 3LPE)
4 Steel pipe shot blasting and derusting lines
5 PE water supply and gas pipe extrusion lines
6 PP/PE sheet, board, and geomembrane production lines
7 NBR/PVC thermal insulation tube and sheet lines
8 Pipeline jointing and anti-corrosion materials
1 20+ years of manufacturing experience
2 Advanced technology integrated with European standards
3 Strong R&D capability and customized solutions
4 Stable quality with long service life
5 One-stop service from design to after-sales support
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