Discount PP-R Aluminum-Plastic Composite Pipe Factories & Manufacturer Solutions

Our multi-layer PP-R/AL/PP-R pipes are engineered strictly according to DIN 8077, DIN 8078, and ISO 21003 standards. Outer diameters typically range from 20 mm up to 110 mm, with wall thicknesses designed across standard SDR series (SDR 6, SDR 7.4, and SDR 9) to meet nominal working pressure ratings between PN 16 and PN 25 bars. The intermediate aluminum barrier is manufactured using pure aluminum alloys (1060/3003 series), uniformly formed via high-frequency ultrasonic overlap or circumferential butt-laser seam welding.

PP-R/AL/PP-R pipes are joined using traditional socket heat fusion or electrofusion, delivering a monolithic, fully homogenous polymer weld that eliminates the leak-prone mechanical O-rings found in push-fit systems. For peelable (stabi) types, a specialized peeling calibrator cleanly strips the thin outer PP-R layer and aluminum foil from the pipe end prior to socket insertion. For non-peeling composite designs, direct fusion using standard sockets without stripping is conducted, saving extensive labor hours on commercial job sites.

HZXY operates large-scale manufacturing facilities spanning 1,500 acres across the Daqiuzhuang Industrial Zone, Jinghai District, Tianjin, with our second massive primary manufacturing and processing base situated in Tangshan, Hebei. The majority of our international sea export consignments load directly through Tianjin Port (Xingang), with flexible dispatch options via Qingdao, Shanghai, or Ningbo ports depending on client destination routes and charter terms.

Yes, this is one of our primary core advantages for EPC buyers and global distributors. Because HZXY supplies comprehensive structural steel sections, reinforcement rebar, plates, coils, steel pipes, plastic MEP pipelines, and industrial valves, overseas clients regularly consolidate complete bill-of-materials into unified 20GP/40HQ containers. This single-source consolidated freight cuts overseas customs handling charges, simplifies bank documentation (L/C, DP), and prevents project scheduling delays.

All shipments are accompanied by official mill test certificates (MTC) and quality compliance dossiers matching international standards including GB/T, ASTM, EN, and JIS. Furthermore, our production management actively facilitates independent pre-shipment inspections conducted by accredited testing houses such as SGS, Bureau Veritas, TÜV, or Intertek to verify dimensional tolerances, coating thicknesses, continuous hydrostatic pressure tests, and packaging integrity.

Standard monolayer PP-R expands at approximately 0.150 mm/m·°C, which causes visible snaking and drooping in suspended installations carrying 60°C–80°C hot water. The internal metallic layer of our PP-R/AL/PP-R pipe lowers this coefficient to between 0.026 and 0.030 mm/m·°C. This performance matches copper and carbon steel, enabling the pipeline to stay straight with significantly fewer support hangers, pipe clamps, and expansion loops.