3LPE FBE Pipe Coating Production Line for Gas Pipelines with Epoxy Powder Spraying

3LPE FBE Pipe Coating Machine for Gas Pipelines with Epoxy Powder Spraying

The Huashida 3LPE FBE pipe coating machine is a fully automatic, turnkey steel pipe coating line engineered for factory-applied anti-corrosion coating of large-diameter steel pipe. Built for oil and gas pipeline manufacturers, oilfield service companies, district heating pipe fabricators, municipal water supply pipe producers and buried pipeline contractors, this pipeline coating equipment supports multiple coating configurations from one flexible production platform: single-layer FBE coating, 2LPE, 2LPP and full 3LPE composite coating. As an experienced pipe coating equipment manufacturer in China, we supply FBE coating equipment and 3PE pipe coating machines to pipeline markets across the Middle East, Central Asia, Russia, Africa and Southeast Asia.

This complete turnkey 3LPE coating machine integrates internal and external shot blasting derusting, medium-frequency induction heating, electrostatic epoxy powder spraying, hot melt adhesive extrusion, outer three-layer polyethylene (PE) cladding, water spray cooling, pipe end beveling and centralized PLC automatic control into one continuous workflow. The line forms the internal FBE epoxy primer layer, the intermediate adhesive layer and the outer 3LPE polyethylene layer in one synchronized process. The coating complies with ISO 21809-1, DIN 30670, DNV and SY/T0413 standards, making it a dependable solution for gas pipeline coating, oil pipeline coating and long-service buried or offshore steel pipe protection.

FBE (fusion bonded epoxy) powder is a non-toxic, thermosetting anti-corrosion material. After precise high-temperature curing, the epoxy powder coating forms a dense, cross-linked protective film with outstanding chemical resistance, abrasion resistance, anti-aging performance and high mechanical strength. The FBE primer bonds tightly to the Sa2.5 shot blasted steel surface, giving superior adhesion, acid and alkali tolerance and excellent cathodic disbondment resistance — the core performance indicator for buried and offshore oil and gas pipeline anti-corrosion systems.

The intermediate polymer adhesive layer fuses onto the uncured FBE surface, then bonds firmly with the outer polyethylene sheath. This forms the three-layer polyethylene (3LPE) composite structure, the defining advantage of industrial-grade buried steel pipe coating equipment.

• Superior Anti-Corrosion Performance: Combined internal and external FBE and 3LPE multilayer protection shields steel pipe from chemical erosion, aging and mechanical impact, ensuring reliable long-term service in harsh oilfield, underground, coastal and offshore environments.
• Low Friction Internal Coating Surface: The smooth FBE internal lining reduces fluid resistance, improving conveying efficiency and lowering long-term energy costs for oil, gas and municipal water pipeline networks.
• Broad Engineering Compatibility: A preferred anti-corrosion pipe coating solution for long-distance oil and gas transmission pipelines, urban gas distribution, municipal water and drainage systems, district heating networks and large buried infrastructure projects.
• High Automation and Low Cost of Ownership: The fully automatic steel pipe coating line minimizes manual labor, and stable, low-failure operation delivers a favorable total cost of ownership for pipe coating plants worldwide.
• Global Standards Compliance: Coating meets ISO 21809-1, DIN 30670, DNV and SY/T0413, supporting EPC pipeline project bidding and approval across international markets.

The flexible, modular design of this pipeline coating equipment supports independent single-layer FBE spraying or full composite 3LPE coating, including combined outer 3LPE and internal FBE (TPEP) dual-layer structures. This makes the 3PE pipe coating machine ideal for municipal water supply pipe, long-distance oil and gas transmission pipe, district heating pipeline, gas pipeline coating and diverse industrial pipe coating projects.

Precise medium-frequency induction heating holds temperature accuracy within ±2°C, ensuring uniform epoxy powder melting and consistent coating adhesion batch after batch. Adjustable spiral pipe conveyor speed accommodates different large-diameter steel pipe sizes, delivering stable throughput and repeatable anti-corrosion coating quality in every run, with processing capacity up to 250 m²/h at line speeds of 0–6 m/min.

The line is equipped with cyclone and pulse dust collection plus a closed-loop FBE powder recovery and recycling unit, meeting CE and ISO 14001 environmental standards. Low dust emission supports compliance with global factory HSE requirements for steel pipe shot blasting and powder coating workshops.

With more than 50 completed domestic and overseas turnkey projects, Huashida FBE 3LPE steel pipe coating lines are commissioned and running in Russia, Iran, the UAE, India, Belarus, Kazakhstan and other markets. They are trusted by pipeline fabricators, EPC contractors and oil and gas infrastructure developers worldwide.

Qingdao Huashida Machinery Co., Ltd., founded in 2003, specializes in R&D and manufacturing of polyurethane pre-insulated pipe production lines, 3LPE/FBE steel pipe anti-corrosion coating lines, large-diameter underground pipeline machinery and plastic pipe fitting equipment, with more than 21 years of industry experience. As a leading pipe coating equipment manufacturer and pipeline coating equipment supplier in China, Huashida maintains long-term technical cooperation with Tsinghua University, Beijing University of Chemical Technology, South China University of Technology and other leading research institutes.