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Longevity of Underfloor Heating Pipes

Are PPR elbow fittings resistant to high temperatures for floor heating?

1. Introduction

For HVAC professionals, ensuring PPR elbow durability in radiant heating systems is critical. This guide explores PPR’s heat resistance, supported by testing data and [ifanultra.com]’s solutions.

2. PPR Material Properties

  • Melting point: 160°C
  • Continuous use: Up to 95°C (EN 12201 certified)
  • Short-term peak: 110°C for 24 hours

3. Thermal Testing Results

  • ISO 13780: No deformation after 10,000 hours at 95°C
  • ASTM D1238: 98% tensile strength retention at 80°C

4. Floor Heating Applications

  • Low-temperature systems: 35-55°C (DN16-DN20 elbows)
  • High-temperature systems: 55-80°C (DN25 elbows)
  • Solar-heated floors: Special copolymer formulation recommended
Longevity of Underfloor Heating Pipes

5. Installation Best Practices

  • Use 90° elbows for tight turns
  • Install expansion joints every 30 meters
  • Pressure test at 1.5x working pressure

6. [ifanultra.com] Solutions

  • High-temperature elbows: PN16 rating for 95°C
  • Custom angles: 30°, 45°, 60° available
  • Insulated options: Pre-installed polyurethane foam

7. Case Studies

  • German apartment complex: 45-year lifespan with annual flushing
  • French hotel: DN25 elbows for 75°C radiant heating
  • Russian project: Custom 60° elbows for -30°C environments

8. FAQs

  • Q: Can PPR elbows handle 100°C water?
    A: Yes, but reduce pressure rating by 20%.
  • Q: Do you offer UV-resistant elbows for outdoor use?
    A: Yes, with special stabilizers (EN 12201-2 compliant).

9. Conclusion

PPR elbows are ideal for floor heating with proper specifications. [ifanultra.com] provides certified, high-temperature solutions. Get a quote for your project.

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IFAN since to 1993, offer PPR,PEX,PVC,HDPE,Brass Fittings,Brass Valve,Brass Bibcocks etc.