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3LPE Coating Plants

Three-layer polyethylene corrosion protection for pipelines

3LPE Coating System Overview

The 3LPE coating system provides advanced three-layer corrosion protection for buried and submerged pipelines. This proven technology is the industry standard for long-distance pipeline applications requiring maximum durability and performance.

Layer 1 - FBE Primer: Provides foundational adhesion and corrosion resistance

Layer 2 - Copolymer Adhesive: Bonds the protective layers together for structural integrity

Layer 3 - PE Topcoat: Offers mechanical and environmental protection against external corrosion

The system operates at 180-230°C with precision thickness control, ensuring consistent quality across all applications. Fully compliant with ISO 21809-1, DIN 30670, and API 5L standards.

3LPE coating application system Three-layer polyethylene coating line

3LPE Application Process

1

Pipe Cleaning

2

Preheating

3

FBE Application

4

Adhesive Layer

5

PE Extrusion

6

Cooling

7

Inspection

Technical Specifications

Pipe Range

Available for pipes from 2 inches to 144 inches in diameter, supporting all standard pipeline applications

Operating Temperature

-40°C to +80°C continuous service, maintaining integrity across extreme climate conditions

Service Life

25-50 years in typical buried pipeline applications with proper cathodic protection

Layer Thickness

FBE: 150-300μm | Adhesive: 200-400μm | PE: 1.8-3.7mm for optimal protection

Application Temperature

180-230°C with advanced thermal control for consistent coating quality

Standards Compliance

ISO 21809-1, DIN 30670, API 5L - Internationally recognized quality certifications

Key Benefits of 3LPE

Superior Environmental Resilience

Triple-layer protection withstands extreme soil and water conditions

Excellent Adhesion

Multi-layer bonding prevents disbondment and maintains coating integrity

25-50 Year Service Life

Proven longevity reduces replacement frequency and operational costs

Automated Application

Precision robotic systems ensure consistent, defect-free coverage

Weld Seam Compensation

Specialized systems address high-stress weld areas with enhanced protection

Cost-Effective Protection

Industry-leading value for extended pipeline protection and durability

Key Applications

Oil & Gas Transmission

Long-distance pipeline protection for crude oil and natural gas transmission networks

Water Infrastructure

Municipal and industrial water distribution systems requiring corrosion resistance

Buried Pipeline Networks

Onshore and offshore pipelines in corrosive soil and marine environments

Industrial Process Piping

Chemical, refining, and processing applications requiring durable protection

Ready to Protect Your Pipelines?

Contact our experts for a customized 3LPE coating solution tailored to your project requirements

Get a Quote Today