HDPE Electrofusion Welding Fitting for Direct Burial Insulated Pipelines
PE/Polyethylene Electro Heating Fusion Sleeve for Directly Buried Pre-Insulated Pipe
Our PE/Polyethylene Electro Heating Fusion Sleeve is a specialized HDPE fitting designed for the reliable and efficient joining of directly buried pre-insulated pipes. The sleeve features a pre-cut HDPE sheet embedded with a high-temperature resistant nichrome heating mesh, enabling robust, leak-proof, and corrosion-resistant joints through electro-fusion welding.
- High-Quality Materials: Manufactured from HDPE 2480 and durable nichrome mesh for superior heat resistance and long service life.
- Strong, Seamless Fusion: Achieves complete fusion with the pipe, ensuring excellent sealing, corrosion resistance, and the ability to withstand both axial and radial forces as well as thermal variations.
- Wide Application Range: Suitable for pipe diameters from 200mm (customizable sizes available).
- Easy & Efficient Installation: Quick and convenient construction using a dedicated electric heating welder; supports rapid field jointing.
- Proven Performance: The design provides higher connection strength, improved sealing, and enhanced anti-aging properties compared to heat-shrink and standard electro-fusion tapes.
- District heating system construction
- Field joint welding of pre-insulated and oil pipes
- Fittings for hollow wall spiral pipes, structural pipes, and steel-reinforced spiral pipes
- Joint sealing and corrosion protection for pre-insulated pipeline networks
Technical Specifications:
| Property | Standard | Test Result | Assessment |
|---|---|---|---|
| HDPE Raw Material Density | ≥0.935 g/cm³ | 0.961 g/cm³ | OK |
| Melt Flow Rate | ≤0.50 g/10min | 0.46 g/10min | OK |
| Appearance | No defects | OK | OK |
| Heat Reversion (%) | ≤3, no cracks | 0.89, No cracks | OK |
| Tensile Yield Strength | ≥19 MPa | 20.2 MPa | OK |
| Elongation at Break | ≥350% | 656% | OK |
| Stress Crack Resistance | ≥300 h | OK | OK |
- Excellent waterproof and sealing properties
- Withstands soil movements and pipe stresses
- Superior aging and corrosion resistance
- Consistent insulation thickness to match pipe layer
- Faster and simpler installation compared to heat-shrink alternatives
Export Experience:
With over 15 years of production experience, our electro-fusion sleeves are exported to Turkey, Sudan, UAE, Japan, Russia, Kazakhstan, and more. We hold a utility model patent and have organized national symposia on electro-fusion technologies.
Contact us for customized solutions and professional support for your pipeline joint needs.
Qingdao Huashida Machinery Co., LTD, is a manufacturer of series of plastic pipe machines, municipal pipe machines, pipe insulation&anticorrosion machines, and pipe jointing&anticorrosion materials, with 21 years of production experience.
Our main products are:
1. HDPE jacket pipe for pre-insulated pipe Production Line (110-2000mm)
2. Rigid pre-insulated pipe Production Line
3. Flexible pre-insulated pipe(PERT) production line
4. Steel pipe FBE/2LPE/3LPE anti-corrosion coating line
5. Steel pipe derusting line
6. PE pressure pipe/Water Gas supply pipe production line
6. PP/PE plastic board/sheet/geomembrane production line
7. NBR PVC Thermal insulation tube/plate production line
8.Pipeline anti-corrosion materials and instruments: heat shrink joint coating sleeve, electro-fusion weldable joint sleeve, portable welding gun(extruder), PE PP welding rod.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.