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50 63 75 90 110 125 160 200 250 315 400 500 630 | 65 80 95 112 139 156 200 250 305 385 480 600 | 95 110 120 135 155 185 200 220 245 290 320 355 | 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 | LYDS11-50 LYDS11-63 LYDS11-75 LYDS11-90 LYDS11-110 LYDS11-125 LYDS11-160 LYDS11-200 LYDS11-250 LYDS11-315 LYDS11-400 LYDS11-500 LYDS11-630 |
The PN16 HDPE Fused Coupler for Plumbing is a high-performance connection fitting engineered to create permanent, leak-free joints in residential, commercial, and municipal plumbing systems. Crafted from PE100 grade HDPE—certified under EN 12201-1:2024 for pressure piping applications—this coupler maintains consistent pressure in water distribution networks while accommodating minor pipe movement from thermal expansion. Rated for 16 bar (232 psi) working pressure at 20°C, it outperforms traditional metal couplings by eliminating corrosion risks and reducing long-term maintenance costs. The one-piece molded design ensures uniform wall thickness, with dimensional tolerances of ±0.2mm for precise alignment with standard HDPE pipes (20mm to 315mm OD). Its fusion-welded construction creates a homogenous bond stronger than the pipe itself, ensuring a service life exceeding 50 years in both buried and above-ground installations .
Designed specifically for electrofusion and butt fusion installation, the coupler forms molecular bonds between pipe and fitting that eliminate potential leak paths. Electrofusion models feature embedded resistance wires with barcode-encoded welding parameters that ensure precise temperature (190±5°C) and cooling times, minimizing installation errors. Butt fusion-compatible designs include reinforced fusion zones that maintain the full PN16 pressure rating through the joint area.
The PE100 material retains 90% of its strength at 40°C, making it suitable for tempered water applications in domestic hot water systems. It exhibits exceptional creep resistance, maintaining pressure integrity after 10,000 hours of continuous operation at 20°C and 16 bar—equivalent to 50 years of service in typical plumbing conditions . The coupler’s flexibility absorbs water hammer shocks up to 25 bar, preventing joint failure in pressure surge scenarios.
Unlike metal couplings that suffer from galvanic corrosion or rust, the HDPE construction provides complete resistance to chlorinated water, soil chemicals, and common plumbing disinfectants. Its smooth inner surface (Ra <0.008mm) prevents scaling and biofilm formation, preserving water quality in potable systems. The material is also resistant to biodegradation, making it suitable for installation in microbially active soil environments.
This versatile coupler solves plumbing connection challenges in various scenarios:
• Residential Plumbing: Connects main supply lines to distribution pipes in single-family homes and multi-story apartments, ensuring consistent water pressure.
• Commercial Buildings: Links HDPE riser pipes to horizontal distribution lines in hotels, hospitals, and office complexes with complex plumbing networks.
• Municipal Water Systems: Joins sections of water mains and service lines in urban distribution networks, withstanding soil loads and ground movement.
• Renovation Projects: Repairs or extends existing HDPE plumbing systems without compromising pressure integrity or flow rates .
Fusion welding creates a permanent, homogenous bond that eliminates gaskets or threads—common failure points in mechanical couplings. This provides better resistance to ground movement, temperature fluctuations, and pressure surges in plumbing systems .
Yes. The PE100 grade HDPE meets EN 12201-1 requirements for potable water contact, with no leaching of harmful substances and certification for compliance with NSF/ANSI 61 drinking water standards.
Electrofusion installation requires a certified electrofusion machine with barcode scanning capability. Butt fusion requires a hydraulic fusion unit with temperature-controlled heating plates (190±10°C) for sizes ≥63mm OD.
Yes. The coupler accommodates standard SDR (Standard Dimension Ratio) variations, including SDR 11 (PN16) and SDR 17 (PN10) pipes, making it versatile for system modifications and repairs.
