Heizwendelschweißung Joint Closure

Electro Fusion Welding Joint ClosureIntroductionItis 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. Aplication Scope1.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. Advantages1. Waterproof; 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. SpecificationsPipeline size: from Ø 108 to Ø 1760mm Wrap Thickness: 4mm—12mm Sleeves width:100mm,150mm,200mm,300mm,450mm, 500mm,600mm,700mm,800mm TEST REPORTStandard by EN253-2003,ISO1183-2004,ISO6964-1986,EN728-1997Testing programRequired technicalTest ResultResultRaw Material Density≥0.935g/m30.961PassMelt Flow Rate≤0.50g/10min0.46PassAppearanceBoth surfaces are clean and free from other defects. PassPassHeat Reversion≤3%;shall not show any cracks 0.89,No cracksPassTensile strength≥19Mpa20.2MpaPassBreak Elongation≥350672PassStress crack resistance≥300PassPassHydraulic pressure test20°C,0.1Mpa water pressure, no damage and leakage after 1 hour PassPassAir leakage test20°C,0.1Mpa air pressure,no damage and leakage after 1 hour PassPass