Joint Protection

Electric Heat Fusion Tape

Electric Heat Fusion Tape

High connection strength and high tensile strength
Integrates with the original fittings, providing excellent sealing performance and airtightness. The polyurethane does not leak
Corrosion-resistant
Convenient and fast installation
Description Performance

  The electric heat fusion tape for insulation pipelines is a type of connecting fitting made by embedding a special electric heating wire mesh into PE sheets through thermal bonding. When it is electrically connected, a molten substance flow is formed between the electric heat fusion tape and the pipe material, allowing for interpenetration and diffusion between the molecules. After cooling, a strong bond is formed, resulting in excellent sealing performance, secure connection, and high tensile strength. It can withstand significant shear forces, exhibits strong environmental adaptability, and can be used as a traction fitting. It is primarily used for the interface connection of thermal and petroleum pipelines.

Applications

• Suitable for repairing joints of buried insulation pipes
• Suitable for central control winding pipes, steel strip reinforced pipes, and spiral corrugated pipes
• Suitable for repairing joints of buried petroleum insulation pipes

Specifications

Pipeline E.D.(mm) Jacketpipe Diameter (mm) Pipe Fitting Width (mm) Pipe Fitting Thickness (mm)
DN159 DN250 500 4
DN219 DN315 500 5
DN273 DN400 500 6
DN377 DN500 600 6
DN426 DN560 600 7
DN478 DN600 600 7
DN529 DN655 600 8
DN630 DN760 600 9
DN720 DN850 600 9
DN800 DN955 600 10
DN920 DN1055 650 12
DN1020 DN1155 650 14
DN1220 DN1380 650 16


Installation Steps

1. Clean the joint area from dirt and debris. Place the electric heat fusion tape in the middle of the interface, ensuring that the electric heating wire is placed on the outer layer.
2. Overlap the electric heat fusion tape and place a pressure plate at the longitudinal joint of the tape to ensure a tight contact at the overlap. Securely tighten and fasten the ends of the electric heat fusion tape with a bundling strap to prevent any looseness.
3. Connect the electric heating wire to the control box. Turn on the switch and set the voltage and power-on time according to the specifications reference table.
4. Cut off the power supply or allow automatic power-off if there is any melted polyethylene overflowing from the edge of the joint.
5. Depending on the site conditions, allow natural cooling for 20-30 minutes before removing the bundling strap and pressure plate.
Property Condition Performance Standard
Density 23°C ≥0.94g/cm3 ISO 1183
Carbon Black Content 23°C >2% ISO 6964
Hardness (Shore D) 23°C ≥55 ISO 868
Melt Flow Rate 190°C,5kg/10min ≤5%, from insulation outer layer ISO 1133-1
Oxidation Induction Time 210°C ≥30min ISO 11357-6

 

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