Engineered Barrier Systems: TOBO Coated Pipe Meets ASME

Engineered Barrier Systems: TOBO Coated Pipe Meets ASME

TOBO Coated Steel Pipes are precision-engineered solutions designed to provide definitive, long-term protection for pipeline assets in corrosive and demanding service environments. Manufactured in strict adherence to ASME standards for material and dimensional integrity, these products integrate high-strength steel pipe with advanced, factory-bonded coating systems. This fusion creates a resilient, impermeable barrier that significantly inhibits corrosion, abrasion, and chemical degradation, thereby safeguarding the structural core. By proactively defending against environmental and operational stressors, TOBO Coated Pipes deliver enhanced durability, reduced total cost of ownership, and assured reliability for critical infrastructure projects worldwide.

1. Product Description
This product line consists of high-grade carbon or low-alloy steel pipes that serve as the structural backbone. The core value is added through a controlled, multi-stage coating process: meticulous surface preparation followed by the application of specialized polymeric coatings. TOBO offers industry-proven systems like Fusion-Bonded Epoxy (FBE) for superior dielectric properties and adhesion, and multi-layer Polyolefin (PE/PP) systems that provide additional mechanical toughness. Each system is selected to match specific project requirements for soil condition, temperature, and exposure.

2. Key Specifications

• Base Pipe: Conforms to ASME B36.10M and material grades such as ASTM A106 Gr. B or API 5L Gr. B.

• Coating Standards: Applied per ISO 21809 or AWWA C210/C213 specifications, with full traceability.

• Common Systems: Standard FBE (250-400μm), Dual Layer FBE, 3-Layer Polyethylene (3LPE), 3-Layer Polypropylene (3LPP).

• Available Sizes: Coating capabilities for diameters from NPS 2" to 64", accommodating most project scales.

• Service Range: Designed for continuous operation within the thermal limits of the coating, typically from -30°C to 110°C, with 3LPP extending the upper range.

3. Application
These pipes are specified for projects where long-term integrity is paramount:

• Oil & Gas Transport: Essential for protecting cross-country and offshore transmission pipelines, gathering lines, and injection lines.

• Municipal Water & Wastewater: Used in potable water distribution, sewer force mains, and treated effluent outfalls to prevent corrosion and contamination.

• Industrial & Chemical Processing: Ideal for underground pipe racks, cooling water circuits, and process lines in aggressive soil conditions.

• Marine & Coastal Structures: Provides critical protection for seawater intake lines, piling, and other structures in splash zones.

• Mining & Resource Sector: For tailings and slurry lines where abrasion resistance is as crucial as corrosion protection.

4. Key Advantages

• Definitive Corrosion Control: The continuous coating barrier electrically isolates the steel, dramatically reducing the corrosion rate and preventing pitting.

• Exceptional Mechanical & Impact Resistance: Tough polyolefin outer layers shield against backfill stresses, rock impingement, and handling damage.

• Optimal CP Compatibility: The dielectric nature of the coatings enhances the efficiency and reduces the current demand of cathodic protection systems.

• Lifecycle Cost Efficiency: The extended service life—often exceeding 50 years for buried pipelines—translates to superior long-term economics.

• Assured Application Quality: Factory-controlled application ensures optimal environmental conditions, consistent film thickness, and perfect adhesion unavailable in field applications.

5. Function
The fundamental function of TOBO Coated Steel Pipes is to actively prevent the deterioration of the steel substrate, thereby ensuring the continuous, safe, and economical operation of the piping system over its entire design life. They function as a primary containment safeguard, maintaining flow efficiency, preventing environmental incidents due to leaks, and protecting the significant capital investment of pipeline infrastructure from premature failure

Engineered Barrier Systems: TOBO Coated Pipe Meets ASME