Smart Controlled PERT PU Foam Pipe Extrusion Line with One-Step Continuous Foaming Process and Automatic Operation for PE-RT II Pipes

The polyurethane PERT pre-insulated pipe, internationally known as a flexible pre-insulated pipe, is a Type II Heat-Resistant Polyethylene (PE-RT II) low-temperature direct-buried heating pipe according to Chinese standards.

This production line adopts a one-step continuous foaming process, providing stable performance, high efficiency, and reliable long-term operation for district heating systems.

• High Temperature Resistance: PE-RT II pipes can withstand temperatures up to 110°C, suitable for high-temperature heating applications.
• Efficient Heat Transfer: Designed for 60°C supply water and 45°C return water systems, reducing energy consumption and operating costs.

• Smooth and Clean Surface: Pipes are free from impurities, ensuring safe and reliable heating performance.
• Automatic Operation: Enables unattended production and reduces labor costs.

• Easy Installation: Simple construction process with up to 40% reduction in excavation volume, saving time and costs.
• Material Savings: Compared with PE-RT I, PE-RT II can reduce material usage by about 15%; compared with PP-R, it can reduce material usage by about 30%.

Products: Flexible pipes with polyurethane foam insulation

Pipe Diameter Range: 20-110 mm

Production Speed: 1.5-5 m/min

• Inner pipe: PE, PE-RT or steel pipe
• Insulation layer: Polyurethane foam (PU)
• Outer sheath: LDPE

• Cost-Effective: Saves raw materials and reduces project costs. Reduces excavation and installation expenses.
• High Quality & Durable: Excellent temperature resistance, flexibility, and service life. Smooth surface ensures efficient heat transfer.
• Environmentally Friendly: Continuous production reduces material waste. Energy-efficient heating solutions help lower environmental impact.

Qingdao Huashida Machinery Co., Ltd was established in 2003. Since its inception, Huashida has focused on plastic polyurethane insulation pipe production line, 3PE anti-corrosion pipe production line, large diameter underground pipe production line and plastic pipe joints for 20 years.

We always attach great importance to research and development, collaborating closely with Beijing University of chemical technology, Qingdao university of technology and scientific research institutions. By absorbing advanced technology home and abroad, after 20 years of endeavor we now rank one of the top 3 manufacturers in the industry in China.

Huashida machines have been well received in Saudi Arabia, Kazakhstan, Uzbekistan, United Arab Emirates, Turkey, Russia, etc.