1. Введение

For chemical processing professionals, selecting corrosion-resistant materials is critical for safe, efficient operations. This guide explores whether PPR pipes are suitable for chemical processing, backed by technical data, certifications, and real-world applications.

2. Why PPR Pipes Are Ideal for Chemical Processing

2.1 Exceptional Chemical Resistance

• pH Stability: Handles extreme conditions from 1 (strong acid) to 14 (strong alkali).
• Solvent Resistance: Resists alcohols, esters, and ketones.
• Oxidation Protection: Stabilizers prevent degradation from free radicals.

2.2 High-Temperature Performance

• Continuous Use: 95°C (EN 12201 certified).
• Short-Term Peaks: Withstands up to 110°C.

2.3 Durability & Cost Efficiency

• Lifespan: 50+ years with proper maintenance.
• Cost: 40% cheaper than stainless steel alternatives.

3. Chemical Compatibility Ratings

3.1 Acids

3.2 Alkalis

• Sodium hydroxide (50%): Excellent resistance.
• Potassium hydroxide (40%): Good performance.

3.3 Chlorinated Compounds

• Chlorine gas (Cl₂): Use PPR-lined steel pipes.
• Chloramine (NH₂Cl): Long-term resistance verified.

4. Industrial Applications

4.1 Chemical Storage & Transport

• Sulfuric acid tanks: DN110 PN25 PPR pipes.
• Chlorine gas: PPR-lined steel systems.

4.2 Water Treatment

• Chloramine disinfection: 15-year lifespan in Australian plants.
• Alum coagulants: No leaching in NSF 61 tests.

4.3 Pharmaceutical Manufacturing

• Ethanol-based cleaning: 10-year service life.
• Sodium hypochlorite (20%): Successfully used in production lines.

5. Key Considerations for Chemical Processing

5.1 Certification Compliance

• ISO 10350: International standard for chemical resistance.
• EN 12201: Material stability for 50 years.
• NSF/ANSI 61: Drinking water safety (for potable systems).

5.2 Custom Solutions

• Lined Pipes: PPR-lined steel for aggressive chemicals.
• Special Coatings: UV-resistant or anti-scale formulations.

5.3 Installation Best Practices

• Welding: Follow ISO 21307 for seamless joints.
• Pressure Testing: 1.5x working pressure for 2 hours.

6. Yifan Pipeline’s Chemical-Resistant Solutions

As a leading manufacturer:

• Сертификаты: ISO 10350, EN 12201, NSF 61.
• Customization: 3D-printed prototypes for complex layouts.
• Testing: Free chemical compatibility analysis by SGS.

Деловое исследование:

• Project: German petrochemical plant transporting 30% HCl.
• Решение: DN75 PN16 PPR pipes.
• Результат: 15-year leak-free operation.

7. FAQs

Q: Can PPR pipes handle nitric acid?
A: Yes, up to 20% concentration with proper pressure ratings.

Q: Are PPR pipes safe for chlorine gas?
A: Use PPR-lined steel pipes for direct chlorine exposure.

Q: What’s the maximum pressure for PPR in chemical systems?
A: PN25 (25 bar) for most industrial applications.

8. Conclusion

PPR pipes are a reliable choice for chemical processing when matched to specific chemicals and installed correctly. For tailored solutions, explore [Yifan Pipeline]’s certified products at ifanultra.com or request a free compatibility report.

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   • Secondary: “PPR pipe chemical resistance,” “industrial PPR applications”
2. Content Structure:
   • Problem-solution format with technical data.
   • Tables and certifications to enhance E-A-T.
3. CTA:
   • Links to product pages and case studies.
   • Free resources (e.g., compatibility reports).

Adjust chemical specifics or add regional examples as needed!