| Product Description
Polygon PPR Aluminum Pipe is a three-layer composite piping product manufactured that integrates PP-R with an alloy aluminum layer. Constructed with three layers—inner PP-R layer, middle alloy aluminum layer, and outer PP-R layer—the aluminum core acts as a “metal armor” for the plastic pipe, perfectly combining the hygiene and corrosion resistance of plastic pipes with the rigidity and stability of metal pipes. Designed specifically for premium water supply, heating, and central air conditioning systems demanding exceptional stability, Polygon PPR Aluminum Pipe resolves the industry challenges of deformation and oxygen permeation commonly associated with traditional plastic pipes in exposed installations.
| Product Feature
● Three-Layer Composite Structure with Balanced Flexibility and Rigidity: The unique three-layer construction of Polygon PPR Aluminum Pipe combines the hygiene and corrosion resistance of PP-R material with the rigidity of metal pipes achieved through the middle aluminum layer, delivering both flexibility and high strength. The outer PP-R layer provides protection, the inner PP-R layer ensures water hygiene, and the middle aluminum layer enhances overall rigidity.
● Extremely Low Linear Expansion Coefficient for Distortion-Free Exposed Installations: With a linear expansion coefficient of only 1/5 that of standard PP-R pipes (approximately 0.03 mm/m·K)—comparable to metal pipes—Polygon PPR Aluminum Pipe reduces bending and expansion issues in exposed hot water pipe installations, ensuring aesthetically pleasing and long-lasting piping systems.
● 100% Oxygen Barrier Prevents System Corrosion: The middle aluminum layer in Polygon PPR Aluminum Pipe fully blocks external oxygen penetration, effectively inhibiting bacterial and algal growth inside the pipe while preventing oxidation corrosion of metal components (such as boilers and radiators) in heating and central air conditioning systems, extending overall system service life.
● UV Resistance with Superior Weatherability: The black PPR aluminum-plastic pipes developed by Polygon have a certain ability to resist ultraviolet rays, which can effectively delay the aging of the pipes and extend their service life.
I Technical Data
Parameter | Specification |
Product Structure | Three-layer: inner PP-R / middle aluminum layer / outer PP-R |
Temperature Range | Long-term operating: 95°C; Short-term maximum: 100°C |
Linear Expansion Coefficient | 0.03-0.05 mm/(m·K), approximately 1/5 of standard PP-R pipes |
Size Range | Nominal outer diameter: 20mm to 110mm (dn20, 25, 32, 40, 50, 63, 75, 90, 110) |
Aluminum Layer Thickness | 0.15mm to 0.35mm depending on pipe diameter |
Connection Method | After stripping the outer PP-R layer with specialized peeling tool to expose aluminum layer and inner PP-R, connect with same-material PP-R fittings using socket heat fusion |
| Product Specification
S Series | DN | Ф | D | H1 | H2 | H3 |
S2.5 | 20 | 20+0.3 | 3.4+0.5 | ≥1.0 | ≥0.23 | ≥1.0 |
S2.5 | 25 | 25+0.3 | 4.2+0.6 | ≥1.2 | ≥0.23 | ≥1.2 |
S2.5 | 32 | 32+0.3 | 5.4+0.7 | ≥1.5 | ≥0.28 | ≥1.5 |
S2.5 | 40 | 40+0.4 | 6.7+0.8 | ≥1.9 | ≥0.33 | ≥1.9 |
S2.5 | 50 | 50+0.5 | 8.3+1.0 | ≥2.3 | ≥0.47 | ≥2.3 |
S2.5 | 60 | 60+0.6 | 10.5+1.2 | ≥3.0 | ≥0.57 | ≥3.0 |
| Application
● Premium Residential & Commercial Exposed Installations: Polygon PPR Aluminum Pipe is particularly suitable for exposed hot water piping in residences, villas, and hotels with stringent aesthetic requirements, utilizing its low expansion and distortion-free characteristics to maintain perfectly straight and level wall-mounted pipelines.
● Central Air Conditioning & HVAC Systems: Used for central air conditioning supply/return water, fan coil unit connections, and radiator heating systems, the oxygen barrier properties of Polygon PPR Aluminum Pipe effectively protect expensive main equipment from corrosion.
● Solar Water Heating Systems: With excellent UV resistance and high-temperature tolerance, Polygon PPR Aluminum Pipe is the preferred material for outdoor solar water heater pipelines.
● Industrial & Commercial Piping: Suitable for pure water delivery in food, beverage, and pharmaceutical industries, as well as process water systems requiring strict oxygen barrier protection.
I Comparison with Other Materials
Comparison Aspect | Polygon PPR Aluminum Pipe |
Linear Expansion | Extremely Low (comparable to metal), distortion-free exposed installation |
Oxygen Barrier | Complete oxygen barrier with aluminum layer blocking oxygen permeation |
UV Resistance | Excellent, suitable for direct outdoor installation |
Installation Method | Heat fusion |
Comprehensive Cost | Medium (superior performance, reduced maintenance) |
I FAQ
1. What is the difference in installation between Polygon PPR Aluminum Pipe and standard PPR pipes? Is installation more difficult?
● Answer: The heat fusion connection method is identical to standard PPR pipes.
2. Why is Polygon PPR Aluminum Pipe said to protect my boiler and radiators?
● Answer: Because its aluminum layer provides a complete oxygen barrier. In heating systems, if oxygen permeates into the water, it causes rust and corrosion of metal components such as boilers, valves, and radiators. Our Polygon PPR Aluminum Pipe completely blocks oxygen, effectively preventing system oxidation, thereby protecting your expensive heating equipment and extending overall system life.
3. Can this pipe be located with a metal detector if buried in concrete?
● Answer: Yes, absolutely. This is one of the advantages of Polygon PPR Aluminum Pipe. Due to the middle aluminum metal layer, during future renovations or modifications, you can use a metal detector to accurately locate the pipe’s routing and position, avoiding damage to pipes when drilling into walls or floors.
