AWWA C213 FBE coated steel pipe for potable water systems. Fusion bonded epoxy internal and external coating with high corrosion resistance, 200–230°C curing temperature, and 300–600 μm coating thickness. Ideal for municipal water pipelines and long-distance water transmission projects.
Below, we introduce some parameters regarding epoxy electrostatic spraying, which we hope will be helpful to you.
FBE Powder Application (Electrostatic Spraying)
Fusion and Curing Process
Coating Thickness Requirements
Powder characteristics:
Particle size: 50 – 120 μm
Density: 1.2 – 1.8 g/cm³
Spray system parameters:
Voltage: 60 – 100 kV
Current: < 50 μA (controlled system)
Carrier air pressure: 0.3 – 1.5 bar
Transfer efficiency: 85% – 95%
Once the powder contacts the hot pipe surface, it goes through:
- Melting (≈180°C)
- Flowing and leveling (200–220°C)
- Chemical cross-linking (curing)
Critical temperature window:
Melting start: 180°C
Full curing: 200°C – 220°C
Internal coating (water contact surface):
400 – 600 μm
External coating:
300 – 500 μm
Heavy-duty systems:
Up to 1000 μm
AWWA C213 FBE coated steel pipe is one of the most reliable solutions for modern drinking water transmission systems, offering a combination of safety, durability, and cost efficiency.
With strict control of:
- Surface preparation (Sa 2.5)
- Preheating (200–230°C)
- Powder application (60–100 kV)
- Coating thickness (300–600 μm)
it ensures long-term pipeline performance under demanding conditions.
