1. Introduction: Key Requirements for Hot Water System Fittings
- Global hot water system market grows at 7.3% annually
- Requires fittings with high temperature resistance, corrosion resistance, and pressure tolerance
- ifan Pipeline’s PPR fittings meet EU EN 12201 standards for 95℃ hot water systems
2. Core Performance Advantages
- High Temperature Resistance:
- Long-term operation: 70℃ (50-year lifespan)
- Short-term peak: 95℃ (100-hour duration)
- Pressure Rating:
- Standard classes: 1.25MPa/1.6MPa/2.0MPa
- Burst pressure: ≥5.0MPa (vs. industry standard 3.5MPa)
- Corrosion Resistance:
- Chloride-ion resistant (vs. copper pitting corrosion)
- No electrochemical corrosion risks
3. Performance Comparison with Traditional Fittings
| Parameter | PPR Fittings | Copper Fittings | Stainless Steel Fittings |
|---|---|---|---|
| Max Temperature | 95℃ | 150℃ | 200℃ |
| Long-Term Temp | 70℃ (50 years) | 100℃ (15 years) | 120℃ (25 years) |
| Installation Cost | Low (heat fusion) | High (soldering) | Very High (welding) |
| Corrosion Resistance | Excellent | Good | Excellent |
| Thermal Expansion | 0.15mm/m·K | 0.017mm/m·K | 0.016mm/m·K |
4. Technical Requirements for Hot Water Systems
- Expansion Compensation: Install expansion joints every 5 meters
- Water Quality: Compliant with GB/T 17219 drinking water standard
- Pressure Testing: Conduct 1.5x working pressure test per EN 805
5. ifan Pipeline Solutions
- Patented Technologies:
- Copper-inset elbows
- Pressure-balanced tee fittings
- Custom Services:
- Full DN20-DN110 sizes for hot water systems
- Free thermal expansion calculation service
- Quality Assurance:
- NSF/ANSI 61 certified for drinking water
- 100% pressure tested (0.8MPa for 2 hours)
6. Typical Applications
- Residential central heating systems (villas/apartments)
- Hotel centralized hot water systems (40 tons/day capacity)
- Solar thermal projects (differential temperature systems)
- Industrial cooling loops (≤95℃ operating conditions)
7. Case Studies & Test Data
- Hangzhou Luxury Residential Project: Zero leaks in 5 years
- Laboratory Results:
- 95℃ cycling test: 5,000 hours no deformation
- 500ppm chloride environment: 3,000 hours no corrosion
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