I. Product Materials and Structure
1. Core Materials
Random Copolymer Polypropylene (PPR): Adopting imported raw materials such as Borealis, with ethylene randomly distributed in the molecular chain, which significantly improves high-temperature resistance (long-term operating temperature of 70℃, instantaneous maximum of 95℃) and impact resistance. The material has a density of 0.9g/cm³, is non-toxic and odorless, complies with the GB/T 17219 sanitary standard for drinking water, and can be directly used for drinking water transportation.
Antibacterial Modification: Some products are added with silver ions or nano-copper antibacterial agents (such as green PPR tees), which can inhibit bacterial growth and meet food-grade application requirements.
2. Structural Design
All-Plastic Integration: The whole structure has no metal parts, avoiding the risk of electrochemical corrosion and being suitable for acid-base environments.
II. Product Specifications
1. Size Range
Diameter Coverage: 20mm, 25mm, 32mm, 40mm, 50mm, 63mm, 75mm, 90mm, 110mm, meeting the needs of all scenarios from home decoration to engineering projects.
Wall Thickness Standard: Strictly complies with the national standard GB/T 18742 to ensure safety in high-pressure environments.
2. Pressure Rating
S5 Series: Nominal pressure of 1.25MPa, suitable for cold water systems (such as tap water inlet pipes).
S3.2 Series: Nominal pressure of 2.0MPa, recommended for hot water systems (such as floor heating, water heaters).
3. Color Classification
White: Made of pure PPR raw materials, with high transparency, suitable for concealed installation, but has weak UV resistance and should avoid long-term exposure to sunlight.
Gray: Added with carbon black to enhance UV resistance, with better bacteriostatic properties, suitable for exposed installation or outdoor scenarios (such as balcony water supply pipes for washing machines).
Green: Contains silver ion antibacterial agents, meets food-grade standards, and is recommended for direct drinking water systems.
III. Product Advantages
1. Material Performance Advantages
High-Temperature Resistance and Corrosion Resistance: Long-term temperature resistance of 70℃, instantaneous resistance of 95℃, and acid-alkali corrosion resistance, with a service life of more than 50 years, far exceeding that of metal pipe fittings.
Sanitary Safety: No heavy metal precipitation, smooth inner wall without scaling, passed NSF certification, and can be directly used for drinking water transportation.
Environmental Protection and Energy Saving: The production energy consumption is only 20% of that of steel pipes, and it can be recycled and reused, complying with green building standards.
2. Structural Design Advantages
Hot Melt Connection Sealing: Pipes and fittings are melted into one piece with the same material, and the joint strength is higher than that of the pipe itself, eliminating the risk of leakage.
Impact Resistance and Earthquake Resistance: The three-layer co-extrusion process (inner layer for antibacterial, middle layer for impact resistance, outer layer for sun protection) improves low-temperature impact resistance, suitable for earthquake-prone areas.
Easy Installation: The 45-degree chamfer design reduces the difficulty of hot melting, and when used with a special hot melt machine (such as Honeywell equipment), the construction efficiency is increased by 30%.
3. Functional Adaptation Advantages
Large Flow Characteristics: The large-radius flow channel design reduces water flow resistance by 50%, especially suitable for the multi-water-point needs of villas or commercial places.
Antibacterial and Bacteriostatic: Silver ion or nano-copper coating inhibits the growth of more than 99% of bacteria, ensuring long-term cleanliness of the direct drinking water system.
Anti-Aging Performance: The carbon black coating of gray PPR tees can absorb 99% of ultraviolet rays, extending the outdoor service life to more than 20 years.
4. Certifications and Standards
Authoritative Certifications: Passed GB/T 18742 and ISO 9001 quality management system certifications.
Summary: PPR all-plastic equal tees, with their high-performance materials, innovative structural design and comprehensive functional adaptability, have become the preferred fittings in fields such as cold and hot water systems, central air conditioning, and industrial pipelines. From the sanitary safety of materials to the convenience of installation, and from corrosion resistance to long service life guarantee, they all show significant comprehensive advantages and are ideal solutions to replace traditional metal pipe fittings.
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