For HDPE pipe jointing, especially using butt fusion or electrofusion methods, temperatures must be precisely controlled to ensure a secure, leak-free connection.
1. Butt Fusion Jointing
Heating Plate Temperature: Typically set at 200-220°C (392-428°F).
Heating Time: This depends on the pipe diameter and wall thickness, as larger pipes require more time.
Process: The pipe ends are heated on a flat heating plate until they reach a molten state, then joined under pressure to create a seamless connection.
2. Electrofusion Jointing
Fitting Temperature: Usually 190-240°C (374-464°F).
Process Control: The fittings contain an embedded heating coil. When electrical current is applied, it heats the fitting and the pipe surface to melt and fuse them together.
Environmental Considerations
Ambient Temperature: Ideal for jointing is around -5 to 40°C (23-104°F) to ensure consistent heat application and cooling.
Preheating in Cold Environments: For colder climates, preheating may be required to prevent joint cooling too quickly.
Correct heating and cooling times ensure joint strength, especially for high-pressure or buried applications.
Contact IFAN
Phone:+86 15088288323
Email:sales24-ifan@ifangroup.com
