It is a kind of special-purpose pipe connection, which is made by embedding specific electric heating melt welding wire in the basis of high quality PE sheet with special technicals. Mainly used for Oil&thermal pipeline, such as Pre-insulated Pipes.
1.District heating system(pipe),district thermal heating; 2. Steel pipes of anticorrosion; 3. Preinsulated bonded pipe system for directly buried hot water networks; 4. Three PE/PP layers with foam jacket insulations pipes connections; 5. Sewer lines instruction.(mental spirally reinforced corrugated pipe); 6. Water supply network; drainage pipes network; 7. Oil & gas pipeline(tubing);
8. Used for joint of Pre-insulated Pipeline, HDPE double-wall corrugated pipes.
2. Able to withstand axial forces initiated by axial moments of the pipe in the ground;
3. Able to withstand radial forces and bending forces;
4. Able to withstand effects of temperature and temperature variatations.
5. Have the same thickness of the pipeline insulation layer.
6. Perfect product instead of Heat Shrinkable Sleeve.
Pipeline size: from Ø 108 to Ø 1760mm
Wrap Thickness: 4mm—12mm
Standard by EN253-2003,ISO1183-2004,ISO6964-1986,EN728-1997
Raw Material Density
Melt Flow Rate
Both surfaces are clean and free from other defects.
≤3%;shall not show any cracks
Stress crack resistance
Hydraulic pressure test
20°C,0.1Mpa water pressure, no damage and leakage after 1 hour
Air leakage test
20°C,0.1Mpa air pressure,no damage and leakage after 1 hour