PERT Pre Insulated Pipe Production Line Integrating Extrusion and Foaming Processes for Seamless Production of Insulated Pipes

This continuous flexible pre-insulated pipe production line integrates advanced one-step extrusion and foaming technology, combining inner pipe forming, polyurethane foam injection, film coating, and HDPE outer casing extrusion into a seamless workflow for high-performance flexible pre-insulated pipes used in heating supply systems.

Polyurethane PERT insulation pipe, internationally known as flexible insulation pipe, is an ideal choice for modern underground heating systems due to its excellent thermal insulation performance and durability.

• PERT II Pipes Can Tolerate Temperatures of 110°C, ensuring stable operation in high-temperature environments
• Pipeline smooth, no impurities, no pollution, meeting environmental protection and fluid transportation standards
• Heating companies can realize unattended, automated operation, improving production efficiency
• Low temperature heating design with 60°C supply water and 45°C backwater
• Construction is simple and convenient, reducing excavation amount by 40%

• Inner Pipe Materials: PERT, PPR, HDPE
• Foam Layer: Polyurethane (PU) foam
• Outer Sheath: HDPE protective pipe
• Control System: Fully automatic computerized control
• Certifications: CE, ISO9001
• Voltage: Customizable according to customer's local standard
• Warranty: 12 months after installation

1. Pipe unwinding
2. Unwinding traction
3. V-shaped wheel conveying
4. Track feeding
5. Encapsulation and film coating
6. Pouring foaming
7. Foam curing
8. PE layer O-shaped extrusion
9. Vacuum suction coating
10. Spray cooling
11. Winding

• Urban district heating
• Residential community heating
• Industrial heating systems
• Central air conditioning cooling/heating pipelines
• Buried hot and cold fluid transmission projects

Currently, there are only a few foreign companies engaged in PERT II cryogenic pipelines, mainly in northwest Europe, Russia and the Middle East. This provides broad market space for our high-quality equipment.

Our continuous PERT/PPR/PP/HDPE polyurethane foam flexible insulation pipe line has passed ISO9001:2008 certification by SGS, ensuring product quality meets international standards and facilitating global market access.

We actively participate in international trading shows to showcase our advanced insulation pipe production line, enhancing brand influence and establishing cooperative relations with global customers.

We provide comprehensive after-sales service, including lifetime technical support, on-site installation, commissioning and training, ensuring customers can use the equipment smoothly and efficiently.

Qingdao Huashida Machinery Co., Ltd is a professional plastic extrusion production line manufacturer established in 2003. The factory covers 34000 square meters, focusing on the R&D and production of various plastic pipe equipment.

Our main products include HDPE pressure pipe for gas or water transmission, structural wall pipe extrusion line, corrugated pipe extrusion line, and continuous PERT/PPR/PP/HDPE polyurethane foam flexible insulation pipe line. The products have been exported to the Middle East, Russia, Africa, Turkey, Korea and other regions, winning wide recognition from global customers.

Our factory is located in Chengyang Industrial Area, Qingdao, Shandong Province. We have been approved and obtained ISO9001:2008 certification by SGS. All customers are welcome to visit our factory for inspection and cooperation.