Induction Heating FBE Pipe Coating Line for Buried Pipelines with Powder Recycling

Induction Heating FBE Pipe Coating Line for Buried Pipelines with Powder Recycling

Product Description

Internal & External FBE Powder Coating 

This ISO 21809 3LPE FBE steel pipe anti-corrosion coating line is a fully automatic, modular turnkey pipe coating production system engineered for factory-applied FBE and 3LPE anti-corrosion treatment of large-diameter steel pipes for water gas supply pipelines, oil and gas transmission, district heating pipe fabrication, municipal water supply networks, and buried pipeline infrastructure. Certified to ISO 21809-1, DIN 30670, DNV, and SY/T0413 simultaneously - the most comprehensive multi-standard coating compliance available in this product category - this line delivers the broadest international certification coverage for global water gas supply pipeline EPC project bidding and regulatory approval.

Designed for municipal water gas supply pipeline fabricators, oil and gas pipeline manufacturers, EPC contractors, and buried pipeline infrastructure developers, this ISO 21809 certified FBE 3LPE steel pipe coating line supports multiple coating configurations - single-layer FBE, 2LPE, 2LPP, and full 3LPE composite anti-corrosion coating - from one flexible modular production platform. The line is actively deployed across Middle East, Central Asia, Russia, Africa, and Southeast Asia water gas supply pipeline markets.

This complete turnkey 3LPE FBE water gas pipeline coating production line integrates internal and external shot blasting derusting (Sa2.5), medium-frequency induction heating (±2°C accuracy), electrostatic FBE epoxy powder spraying, hot melt adhesive extrusion, outer three-layer polyethylene (3LPE) cladding, water spray cooling, pipe end beveling, zero-emission powder recovery system, and centralized PLC automatic control - achieving one-step synchronous forming of the Fusion Bonded Epoxy (FBE) primer layer, intermediate adhesive layer, and outer 3LPE polyethylene protective layer at 0-6m/min adjustable line speed delivering 250m²/h processing capacity for water gas supply pipeline anti-corrosion manufacturing.

Coating Principle

Fusion Bonded Epoxy (FBE) powder is a non-toxic, thermosetting anti-corrosion coating material. After precision high-temperature curing at ±2°C temperature accuracy, it forms a dense, high-molecular crosslinked protective film delivering outstanding chemical corrosion resistance, abrasion resistance, anti-aging performance, and high mechanical strength - meeting ISO 21809-1, DIN 30670, and DNV international standards for water gas supply and oil gas pipeline anti-corrosion coating.

The FBE primer layer bonds tightly to the Sa2.5 blast-cleaned steel substrate, providing superior adhesion, acid-alkali tolerance, and excellent cathodic disbondment resistance - the core performance indicator for buried water gas supply and oil gas pipeline anti-corrosion systems. The intermediate polymer adhesive layer fuses seamlessly onto the uncured FBE epoxy surface, then bonds firmly with the outer 3LPE polyethylene sheath, forming the robust three-layer composite anti-corrosion structure that defines this ISO 21809 certified water gas pipeline coating system.

Product Characteristics

• ISO 21809-1 Multi-Standard Compliance: The internationally recognized multi-layer polymer coating standard for steel pipelines - ISO 21809-1 alongside DIN 30670, DNV, and SY/T0413 gives this water gas supply pipeline coating line the most comprehensive certification coverage for global EPC project compliance
• Modular Coating Configuration Flexibility: Single-layer FBE, 2LPE, 2LPP, and full 3LPE composite anti-corrosion coating from one flexible production platform - adaptable for municipal water gas supply, oil gas transmission, district heating, and diversified industrial buried water gas pipeline coating requirements
• ±2°C Medium-Frequency Induction Heating Precision: Ensures uniform FBE epoxy powder melting and consistent 3LPE coating adhesion for reliable water gas supply pipeline anti-corrosion quality batch after batch
• Zero-Toxicity FBE for Water Supply: Smooth internal FBE lining meets potable water supply pipeline safety standards - approved for drinking water contact applications alongside gas supply pipeline anti-corrosion service
• 250m²/h High-Throughput Performance: Full PLC automatic control sustains 250m²/h processing capacity at 0-6m/min adjustable line speed - keeping high-volume water gas supply pipeline coating contracts on schedule without production bottlenecks
• Zero-Emission Environmental Compliance: Integrated cyclone and pulse dust collection plus FBE powder recovery unit fully satisfies CE and ISO14001 standards - supporting green factory requirements for water gas supply pipeline coating workshops globally

Detailed Photos

Equipment Core Highlights

Main Equipment of 3PE anti-corrosion coating processing

Process Adaptability

Flexible modular equipment design supports independent single-layer FBE spraying or full composite 3LPE anti-corrosion coating, including combined outer 3LPE + internal FBE (TPEP) dual-layer structures. This adaptability makes the DNV Certified coating line ideal for municipal water gas supply pipe, long-distance oil gas transmission pipe, district heating pipeline, and diversified industrial buried water gas pipeline coating engineering requirements across Middle East, Central Asia, Russian, African, and Southeast Asian markets.

Efficient and Stable High-Speed Performance

Precision medium-frequency induction heating maintains ±2°C temperature accuracy, ensuring uniform FBE epoxy powder melting and consistent 3LPE coating adhesion for water gas pipeline production. Adjustable spiral pipe conveyor speed accommodates variable large-diameter steel pipe from 325-4200mm, delivering stable 250m²/h throughput and repeatable DNV certified 3LPE FBE anti-corrosion coating quality at 0-6m/min line speed across every water gas pipeline production run.

Environmental Compliance

Equipped with an integrated cyclone and pulse dust collection system plus a closed-loop FBE powder recovery unit, this DNV Certified 3LPE FBE water gas pipeline coating line fully satisfies CE and ISO 14001 environmental protection standards. Zero visible dust emission ensures compliance with global factory HSE requirements for steel pipe shot blasting and FBE powder coating workshops - meeting environmental compliance requirements for water gas pipeline coating factories across Middle East, European, and Central Asian regulatory environments.

Global Service Network

With more than 50 completed domestic and overseas turnkey projects and DNV certification, Huashida's 3LPE FBE water gas pipeline coating production lines are commissioned and running in Russia, Iran, the UAE, India, Belarus, Kazakhstan, and other international markets - earning strong recognition among global water gas pipeline fabricators, EPC contractors, and oil gas infrastructure developers.

FAQ

Question & Answer

Company Profile

1. Our History

Qingdao Huashida Machinery Co., Ltd., founded in 2003, specializes in R&D and manufacturing of DNV Certified 3LPE FBE steel pipe anti-corrosion coating lines for water gas pipelines, polyurethane pre-insulated pipe production lines, large-diameter underground pipeline machinery, and plastic pipe fitting equipment - backed by more than 21 years of pipeline industry experience. Huashida ranks among China's top-3 manufacturers of pipeline processing equipment, maintaining long-term technical cooperation with Tsinghua University, Beijing University of Chemical Technology, and South China University of Technology.

Core Product Range:

• DNV Certified 3LPE FBE Steel Pipe Coating Lines for Water Gas Pipelines (325-4200mm, ISO 21809-1/DIN 30670/DNV/SY/T0413)
• High Speed FBE 3LPE Internal External Coating Lines for Oil Gas Pipelines
• 36-4200mm External Shot Blasting 3LPE Steel Pipe Coating Lines
• Turnkey PUR Spray PE Pre-Insulated Pipe Production Lines (508-1620mm)
• HDPE Jacket Pipe Casing Extrusion Lines (110-2200mm)
• HDPE PE100 Pipe Extrusion Lines for Municipal Water Gas Supply (16-1600mm)

Certifications

Clients case

International Exibition