Plastic-coated pipe inside and outside
High-Quality Plastic-Coated Pipe Inside and Outside for Superior Corrosion Protection
Plastic-coated pipe inside and outside provides exceptional durability and corrosion resistance for industrial applications. Our double-coated piping solutions ensure maximum protection in harsh environments while maintaining excellent flow characteristics.
Product Specifications
- Material: Carbon steel base pipe with polyethylene/polypropylene coating
- Coating Thickness: 0.8mm-2.5mm (internal and external)
- Diameter Range: 1/2" to 48" (DN15 to DN1200)
- Temperature Resistance: -30°C to 80°C (-22°F to 176°F)
- Pressure Rating: Up to 25MPa (3625psi)
- Standards Compliance: ISO 21809, DIN 30670, AWWA C210
| Pipe Size (inches) | Wall Thickness (mm) | Coating Thickness (mm) | Max Working Pressure (MPa) |
|---|---|---|---|
| 1/2" - 2" | 2.0 - 3.5 | 0.8 - 1.2 | 25 |
| 2" - 8" | 3.0 - 6.0 | 1.2 - 1.8 | 16 |
| 8" - 24" | 6.0 - 12.0 | 1.8 - 2.5 | 10 |
| 24" - 48" | 12.0 - 20.0 | 2.0 - 2.5 | 6 |
Key Advantages of Our Plastic-Coated Pipe Inside and Outside
- Complete corrosion protection for both internal and external surfaces
- Superior chemical resistance against acids, alkalis, and solvents
- Excellent abrasion resistance for long service life
- Smooth interior surface reduces friction loss
- Electrically insulating properties prevent stray current corrosion
FAQ - Plastic-Coated Pipe Inside and Outside
Q: What are the primary applications for plastic-coated pipe inside and outside?
A: Plastic-coated pipe inside and outside is widely used in water treatment plants, chemical processing, oil and gas pipelines, marine applications, and mining operations. The dual-layer protection makes it ideal for transporting corrosive fluids or for installations in corrosive environments where both internal and external protection are required.
Q: How does plastic-coated pipe inside and outside compare to traditional galvanized pipe?
A: Plastic-coated pipe inside and outside offers superior corrosion resistance compared to galvanized pipe, especially in chemical environments. While galvanization provides basic protection, our plastic coating system completely isolates the metal from corrosive elements, offers better abrasion resistance, and maintains smoother interior surfaces for improved flow characteristics. The service life of plastic-coated pipe typically exceeds galvanized pipe by 3-5 times in aggressive environments.
Q: What maintenance is required for plastic-coated pipe inside and outside?
A: Plastic-coated pipe inside and outside requires minimal maintenance. The coating system is designed to be completely maintenance-free under normal operating conditions. We recommend periodic visual inspections for mechanical damage and annual checks of cathodic protection systems when installed underground. Unlike bare metal pipes, our coated pipes don't require regular painting or re-coating throughout their service life.
Installation Guidelines
For optimal performance of plastic-coated pipe inside and outside, follow these installation best practices:
- Use non-metallic slings during handling to prevent coating damage
- Store pipes on wooden or rubber-lined supports
- Protect cut ends with compatible sealant or repair coating
- Use proper gaskets and flange isolation kits
- Follow manufacturer's recommendations for welding procedures
Quality Assurance
Our plastic-coated pipe inside and outside undergoes rigorous quality testing:
- 100% holiday detection testing (minimum 5kV/mm coating thickness)
- Adhesion testing (minimum 50N/cm according to DIN 30678)
- Impact resistance testing (minimum 10J/mm at 23±2°C)
- Cathodic disbondment testing (maximum 8mm radius after 28 days at 65°C)
Environmental Benefits
Choosing plastic-coated pipe inside and outside contributes to environmental sustainability:
- Long service life reduces material consumption
- Prevents leaks and contamination of soil/groundwater
- Energy-efficient manufacturing process compared to alternatives
- 100% recyclable steel core