Key Considerations for Producing PE Pipes on Three-Layer Co-Extrusion Lines

Ningbo Fangli Technology Co., Ltd. is a manufacturer of mechanical equipment with over 30 years of experience in plastic pipe extrusion equipment, environmentally friendly equipment and new-material equipment. Since its establishment, Fangli has grown by responding to customer needs. Through continuous improvement, independent R&D of core technologies and the assimilation of advanced technologies, we have developed PVC pipe extrusion lines, PP-R pipe extrusion lines， PE water supply/gas pipe extrusion lines, PVC-O pipe extrusion line; RTP pipe extrusion line, which were recommended by the Ministry of Construction as domestic alternatives to imported products. We have been awarded the title of "First-Class Brand of Zhejiang Province".

Why PE Pipes?

PE pipes are highly hygienic, non-toxic and free of heavy-metal additives. They do not scale or support bacterial growth, thus eliminating secondary contamination of drinking water. Their light weight makes transportation and installation easy. The smooth inner wall provides a low friction coefficient and excellent wear resistance. The unique electrofusion, hot-melt butt fusion and hot-melt socket fusion technologies make joint strength higher than that of the pipe itself, ensuring safe and reliable joints.

Quality Requirements and Key Issues in Processing

Customers often ask about PE pipes. What are the quality requirements during processing, and what issues should be addressed? Let's take a look.

Service temperature and extruder selection

In general, the service temperature of PE pipes should not exceed 45 °C. Since PE pipes are mainly used for gas distribution and municipal water supply, as well as for indoor cold-water supply, sewage disposal, irrigation and aquaculture, the extruder should be selected specifically for PE pipe production: the screw should feature a barrier section and a mixing head, and the barrel should be a new-type grooved barrel, providing good plasticizing and mixing performance, high output and highly stable extrusion.

Process control and quality inspection

For pipe processing on a PE pipe production line, pipe quality must be guaranteed and continuous innovation is essential. During production, follow the correct processing method for each step and apply strict quality-inspection standards. Details must not be neglected in pursuit of higher efficiency.

People, management and production environment

At the same time, production-line staff should receive appropriate technical and management training, continuously improve their production skills and be supported by a sound management system. For a company, a suitable production environment is essential: well-equipped production lines with adequate capacity, high-quality products and a strong focus on developing skilled personnel.

Conclusion

In the operation of three-layer co-extrusion PE pipe equipment, only by achieving consistent quality can we stand up to market scrutiny.

Contact Us

For more information, Ningbo Fangli Technology Co., Ltd. welcomes your inquiries. We will provide professional technical guidance and equipment sourcing advice.