HDPE Socket Fusion Coupler for Water

Key Features

• Socket fusion interface for seamless joints
• Reinforced design with optimized stress distribution
• Potable-water certified smooth internal bore
• UV-stabilized formulation resistant to chlorine degradation

Typical Applications

• Mainline connections in municipal water networks
• Building service water supply pipelines
• Process piping in water treatment plants
• Rehabilitation of irrigation trunk lines

Manufacturing Process

Computer-controlled temperature precision injection molding

• Melt temperature control: 230±5℃
• Holding pressure: 75–85MPa
• Cooling gradient: ≤15℃/min
• Socket concentricity: ≤0.5° deviation

Raw Material Characteristics

• Minimum Required Strength (MRS): 10.0 MPa
• Melt Flow Index (190℃/5kg): 0.30±0.05 g/10min
• Carbon black dispersion: ≤Class 3 (ISO 18553)
• Long-term hydrostatic strength: 8.0MPa (20℃, 50 years)

• Trenchless rehabilitation of potable water mains
• New residential water supply network installation
• Backwash line connections in filtration plants
• Mainline splicing in agricultural irrigation systems