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Our PE Electro Fusion Weld Wrap Sleeve is a specialized joint connection solution exclusively developed for pre-insulated pipe systems. Produced via a high-temperature composite process that integrates high-conductivity electro fusion heating mesh wire into a high-density modified polyethylene sheet, this pre-insulated pipe electro fusion sleeve is designed to achieve reliable fusion welding of HDPE jacket pipes of pre-insulated pipes. As a professional insulation pipe fusion weld wrap sleeve, it perfectly matches the wall thickness of HDPE jacket pipes, forming a continuous and complete protective outer layer after welding, effectively preventing moisture and air from entering the insulation layer, and ensuring long-term thermal insulation performance of the pipeline.
This pre-insulated pipe weld sleeve is tailor-made for pre-insulated pipe joint connection, with its thickness fully consistent with the wall thickness of mainstream HDPE jacket pipes on the market. This precision design ensures a seamless transition between the weld wrap sleeve and pipe outer wall after welding, avoiding gaps and protrusions, and maintaining the integrity of the outer protective layer of the pre-insulated pipe. It provides a solid barrier for the internal insulation layer, preventing damage to the insulation structure caused by external stress and environmental erosion.
The base material of our PE Electro Fusion Weld Wrap Sleeve adopts high-density modified polyethylene with a density of 960kg/m³, which has excellent environmental stress cracking resistance, aging resistance and low temperature resistance. The built-in high-conductivity heating mesh wire ensures uniform heating during welding, achieving full molecular fusion between the sleeve and HDPE jacket pipe, avoiding welding defects such as air holes and incomplete fusion. This greatly extends the service life of the pre-insulated pipe system and reduces operation and maintenance costs for regional energy project operators.
Our insulation pipe fusion weld wrap sleeve forms a high-strength fusion joint after welding, which can withstand strong shear force generated by pipeline thermal expansion and contraction, ground settlement and construction vibration. With auxiliary sealing of a heat shrinkable sleeve or hand extrusion welder, it can achieve 100% airtight performance of pipe joints, completely preventing moisture and air from entering the insulation layer, avoiding thermal insulation performance failure caused by damp insulation, and effectively reducing heat loss of the pipeline during operation.
This pre-insulated pipe electro fusion sleeve is fully compatible with the PE-10-6000 model electro fusion welding machine widely used in the thermal engineering industry, no special equipment is required. It is suitable for on-site construction of various pre-insulated pipe projects, with simple and fast operation, which can effectively shorten the construction period and improve construction efficiency for thermal engineering contractors.
NO. | Item | Requirement | Test Data |
1 | Color | Black | Black |
2 | Density | >940kg/m3 | 960 |
3 | Tensile Strength | ≥19MPa | 19.5 |
4 | Elongation at Break | ≥450% | 580 |
5 | Percentage of Longitudinal retraction | ≤3% | 1.5 |
6 | MFR @190C 5KG | -- | 0.25g/10min |
7 | Thermal Stability@210C | -- | 37.2min |
Our PE Electro Fusion Weld Wrap Sleeve is the preferred joint connection solution for pre-insulated pipe system integrators, thermal engineering contractors, pre-insulated pipe manufacturers and district heating project operators. Main application scenarios include:
District central heating pipeline networks
Central air conditioning chilled water transmission pipeline systems
Industrial process medium thermal insulation transmission pipelines
Underground pre-insulated pipe laying projects for combined heat and power systems
Urban heating pipeline renovation and expansion projects
Industrial park and commercial complex supporting heating pipeline construction
Our pre-insulated pipe weld sleeve is made of high-density modified polyethylene base material, embedded with high-conductivity electro fusion heating mesh wire through a high-temperature composite process, which has excellent melt compatibility with HDPE jacket pipes of pre-insulated pipes.
After completing the electro fusion welding of the PE Electro Fusion Weld Wrap Sleeve, it is recommended to use a heat shrinkable sleeve or hand extrusion welder for secondary sealing treatment, which can achieve 100% airtight effect of the joint and prevent moisture from entering the insulation layer.
This insulation pipe fusion weld wrap sleeve is fully matched with the PE-10-6000 model electro fusion welding machine widely used in the thermal engineering industry, and can be directly used without adjusting equipment parameters.
