Automatic 3LPE Coating Pipe Production Line with SA2.5 Cleaning Level for 50-4200mm Steel Pipe Anti-Corrosion

The 3PE (Three-Layer Polyethylene) coating represents a leading advancement in corrosion-resistant technology. Its engineered structure integrates a fusion-bonded epoxy (FBE) inner layer for superior adhesion, a tough adhesive (AD) intermediate layer for strong molecular bonding, and a high-durability polyethylene (PE) outer layer that delivers long-term external protection.

This carefully designed multi-layer system provides outstanding mechanical robustness, excellent electrical insulation properties, and stable, reliable processing performance. Its environmentally conscious composition makes it an ideal solution for protecting oil and gas transmission lines, municipal water pipelines, and modern district heating networks.

The remarkable 3-layer PE coated steel pipes are ingeniously designed for diverse applications including:

• Oil and gas transmission pipelines - engineered for unparalleled long-term protection against corrosion and external damage
• Urban gas and water supply systems - guaranteeing safe, clean, and reliable transport of essential fluids
• District heating networks - maintaining insulation and resistance to corrosion under challenging high-temperature conditions
• Underground and industrial anti-corrosion projects - providing robust, long-lasting protection for buried and exposed steel pipelines

This state-of-the-art coating technology has been successfully applied in monumental infrastructure projects worldwide, with exports spanning Europe, the Middle East, Central Asia, Africa, Russia, and numerous other regions.

Qingdao Huashida Machinery Co., LTD is a leading powerhouse in manufacturing diverse plastic pipe machinery solutions, municipal pipe machinery, cutting-edge pipe insulation & advanced anti-corrosion technologies, and robust machinery. We specialize in pipe jointing & innovative anti-corrosion materials, backed by over 20 years of unparalleled production excellence.

• High-Density Polyethylene (HDPE) jacket pipe lines for pre-insulated pipes (110mm to 2000mm)
• State-of-the-art Rigid pre-insulated pipe production lines
• Versatile Flexible pre-insulated pipe (PERT) production lines
• Steel pipe anti-corrosion coating lines (FBE, 2LPE, and 3LPE technologies)
• Advanced Steel pipe derusting lines for optimal surface preparation
• Comprehensive PE pressure pipe/Water and Gas supply pipe production lines
• PP/PE plastic board, sheet, and geomembrane production lines
• Specialized NBR PVC Thermal insulation tube and plate production lines
• Comprehensive pipeline anti-corrosion materials and instruments

We proudly serve over 400 international clients, exporting our top-tier products to countries including Kazakhstan, Uzbekistan, Iran, Turkey, Russia, Nigeria, and many more.