The High-Efficiency PERT Pipe Manufacturing System with PU Foam Insulation is an advanced, fully integrated solution designed for the production of pre-insulated pipes used in district heating, hot water distribution, and industrial applications. By combining precision extrusion technology with high-performance insulation processes, the system ensures consistent product quality, high output efficiency, and long-term operational reliability.

This comprehensive system integrates the manufacturing of PERT inner pipes, HDPE outer jackets, and PU foam insulation into a streamlined and automated production process. It is engineered to deliver stable performance, reduced energy consumption, and superior thermal insulation, making it an ideal choice for modern pipe manufacturing facilities.

The production process consists of three main stages:

• PERT Inner Pipe Extrusion: High-quality PERT raw materials are processed through precision extrusion to produce inner pipes with excellent resistance to high temperature and pressure, ensuring uniform wall thickness and smooth surface finish.
• HDPE Outer Jacket Production: Advanced extrusion system produces HDPE outer jackets that provide strong protection against moisture, corrosion, and mechanical damage.
• PU Foam Insulation: The inner PERT pipe is inserted into the HDPE outer pipe, followed by high-pressure injection of polyurethane foam into the space between them. The foam expands and cures to form a dense, uniform insulation layer that significantly reduces heat loss and enhances energy efficiency.

• High level of automation
• Precise control of temperature and pressure
• Strong bonding between layers
• Low operational costs
• Configurable for continuous or batch production
• Wide application in district heating networks, hot water supply systems, industrial pipeline insulation, and oil and gas applications

Qingdao Huashida Machinery Co., LTD is a manufacturer of series of plastic pipe machines, municipal pipe machines, pipe insulation & anticorrosion machines, and pipe jointing & anticorrosion materials, with more than 20 years of production experience.

• HDPE jacket pipe for pre-insulated pipe Production Line (110-2000mm)
• Rigid pre-insulated pipe Production Line
• Flexible pre-insulated pipe (PERT) production line
• Steel pipe FBE/2LPE/3LPE anti-corrosion coating line
• Steel pipe derusting line
• PE pressure pipe/Water Gas supply pipe production line
• PP/PE plastic board/sheet/geomembrane production line
• NBR PVC Thermal insulation tube/plate production line
• Pipeline anti-corrosion materials and instruments: heat shrink joint coating sleeve, electro-fusion weldable joint sleeve, portable welding gun(extruder), PE PP welding rod

We attach great importance to research and development, collaborating closely with Tsinghua University, Beijing University of Chemical Technology, South China University of Technology and other scientific research institutions. By absorbing advanced technology from home and abroad, we now rank among the top 3 manufacturers in the industry in China.

We have been working with more than 400 overseas customers and exporting our products to Kazakhstan, Uzbekistan, Iran, Turkey, Russia, Nigeria and other countries.