Description

• Molecular Butt Fusion Integration The thermal butt fusion process facilitates molecular chain entanglement across the interface, creating a joint with tensile strength equal to or exceeding the pipe itself. This monolithic structure eliminates the need for rubber gaskets or mechanical fasteners, providing a zero-leakage rate that significantly reduces non-revenue water (NRW) losses for municipal utilities.
• Broad-Spectrum Thermal Stability (-60°C to 40°C) Utilizing high-grade PE100 raw materials, these fittings maintain structural elasticity and impact resistance across an operating temperature range of -60°C to 40°C. This material property prevents brittle fractures in high-latitude regions and maintains pressure ratings in temperate buried environments, ensuring versatile deployment in diverse geographical climates.
• High Ductility and Seismic Resilience With an elongation at break exceeding 500%, these HDPE fittings accommodate significant soil settlement and seismic shifts without catastrophic failure. The inherent flexibility allows the pipeline system to absorb kinetic energy from ground movement, providing a critical safety margin for infrastructure located in unstable soil or earthquake-prone zones.
• Chemically Inert and Corrosion Resistant Material High-density polyethylene is an inert thermoplastic resistant to a wide pH range, biological growth, and aggressive soil chemicals. This resistance prevents internal scaling and external electrochemical corrosion, maintaining a constant Hazen-Williams C-factor (flow coefficient) over the system's 50-year service life and reducing long-term pumping energy costs.
• Optimized Hydraulic Smoothness The smooth internal bore of the molded fittings results in a low friction coefficient, which minimizes pressure drop across elbows, tees, and reducers. For the project engineer, this hydraulic efficiency allows for optimized pump sizing and lower operational electricity consumption compared to rougher-surfaced metallic alternatives.
• Rapid Crack Propagation (RCP) Resistance The advanced resin formulation provides high resistance to rapid crack propagation and slow crack growth (SCG). This engineering safeguard ensures that localized surface scratches or point-loading stress from rocky backfill do not develop into systemic longitudinal failures, protecting the integrity of high-pressure water mains.
• Lightweight Modular Design for Large Diameters Available in sizes from 50mm up to 800mm, these fittings weigh significantly less than ductile iron or steel equivalents, facilitating easier handling without heavy-duty lifting equipment. This reduces on-site labor risks and lowers transportation-related carbon emissions, contributing to the overall economic and environmental sustainability of the project.

Scope of application

• Municipal Potable Water Supply Networks In city-wide water infrastructure, these HDPE butt fusion fittings serve as critical components for main trunk lines and branch distribution systems. They are engineered to transport treated potable water at ambient temperatures, providing a leak-proof solution that maintains water hygiene and prevents secondary contamination. The high pressure rating ensures stability under the fluctuating hydraulic loads typical of urban water supply systems.
• Industrial Process and Chemical Transport Designed for industrial facilities, these PE100 fittings are used in the conveyance of processed fluids, including mild acids, alkalis, and saline solutions. The chemical inertness of the HDPE material prevents internal corrosion and material degradation, making them suitable for cooling water loops and chemical discharge lines where traditional metallic fittings would require frequent replacement due to oxidation or chemical attack.
• Agricultural Irrigation and Large-Scale Farming For modern agricultural projects, these fittings facilitate the construction of high-pressure irrigation headers and subsurface piping. They are deployed to transport raw water from reservoirs or boreholes to sprinklers and drip systems. Their resistance to UV exposure and environmental stress cracking (ESC) makes them reliable for long-term surface or buried installation in varied soil conditions and agricultural climates.
• Mining Tailings and Slurry Management In mining and dredging operations, butt weld HDPE fittings are utilized for the transport of abrasive slurries and tailings. The material’s high wear resistance and smooth internal surface reduce friction losses and abrasive wall thinning. This durability is essential for the high-velocity transport of solids-laden media, where maintaining the structural integrity of elbows and tees is critical to preventing system downtime.
• Municipal Sewage and Wastewater Discharge These fittings are integrated into gravity and pressure sewer systems for the safe transport of domestic and industrial wastewater. Their biological resistance prevents degradation from hydrogen sulfide gas and bacterial growth commonly found in sewage environments. The butt-fused joints eliminate the risk of root penetration and groundwater infiltration, ensuring the environmental safety of the discharge network.
• Underground Firefighting and Hydrant Systems In commercial and industrial building complexes, high density polyethylene fittings are used in buried fire-loop mains to supply pressurized water to hydrants and sprinkler risers. The system’s high toughness and seismic resilience ensure that the fire protection network remains operational during ground shifts or seismic events, providing a reliable water source for emergency response.
• Landfill Leachate Collection Systems These fittings are specifically applied in the harsh chemical environments of landfill sites for leachate collection and drainage. They effectively manage complex chemical mixtures and organic contaminants at temperatures within the -60°C to 40°C range. The fusion-welded joints provide the highest level of containment, preventing hazardous leachate from contaminating the surrounding groundwater and soil.

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