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Comparison Factor
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Huiya UPVC Fittings (PN10, DIN)
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CPVC Fittings
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Stainless Steel Fittings (DIN)
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PPR Fittings
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Max Working Temperature
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Up to 60°C (140°F), suitable for cold water systems
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Up to 93°C (200°F), for hot water/chemicals
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Up to 200°C (392°F), for high-temperature industrial use
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Up to 70°C (158°F), for residential heating
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Pressure Rating
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PN10 (10 bar), compliant with DIN EN 1452-2
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PN16-PN20
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PN25+, higher pressure capacity
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PN10-PN16
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Corrosion Resistance
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Excellent, resists acids, alkalis, sewage and humid environments; no rust
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Excellent, stronger for harsh chemicals
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Good, but prone to rust in corrosive/marine environments
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Good, limited to mild chemicals
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Cost Efficiency
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Low cost (50-70% cheaper than stainless steel, 10-30% cheaper than CPVC/PPR); high cost-performance for bulk orders
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Medium, 10-30% more expensive than Huiya UPVC
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High (2-3x the cost of Huiya UPVC), high maintenance cost
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Medium, similar to CPVC
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Size Range
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20-400mm, full coverage for residential/municipal/industrial needs
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20-315mm, limited large-size options
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15-500mm, wide range but heavy
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20-160mm, mainly for small residential projects
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Service Life
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≥50 years (23°C, PN10), compliant with DIN standards; low aging rate
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≥50 years
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≥30 years, shortened by rust
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≥30 years
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Installation Difficulty
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Easy, solvent cement/threaded connection; no professional welding needed
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Easy, same as UPVC
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Difficult, requires welding and heavy handling
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Medium, needs heat fusion equipment
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Key Applications
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Municipal drainage, residential water supply, agricultural irrigation, industrial cold water pipelines (Huiya core scenarios)
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Chemical transport, hot water systems
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High-pressure industrial systems, high-temperature pipelines
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Residential heating, drinking water pipelines
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