On-site electrofusion sleeves are specialized connecting pipe fittings designed for anti-corrosion applications, particularly for directly buried pre-insulated pipes field joints. Manufactured from polyethylene sheets integrated with electro-fusion wire, these sleeves provide superior protection and sealing for pipeline connections.
This heat shrink anti-corrosion material is engineered for joint repair and protection of buried steel pipelines, as well as sealing and anti-corrosion of pipeline flange connections. Composed of radiation cross-linked polyolefin substrate and specialized sealing hot melt adhesive, the system forms a durable, protective barrier when heated and installed.
| Test | Unit | Standard | Test Result | Assess |
|---|---|---|---|---|
| HDPE Raw material density | g/cm³ | ≥0.935 | 0.961 | OK |
| Raw material melt flow rate | g/10min | ≤0.50 | 0.46 | OK |
| Appearance check | / | Internal and external surfaces clean and free from defects | OK | OK |
| Heat reversion | % | ≤3; no cracks | 0.89, No cracks | OK |
| Tensile yield strength | Mpa | ≥19 | 20.2 | OK |
| Elongation at break | % | ≥350 | 656 | OK |
| Stress crack resistance | h | ≥300 | OK | OK |
Customers achieve higher quality projects using our premium pipeline accessories, with guaranteed cooperation quality from Huashida.
Primarily used in petrochemical anti-corrosion, thermal pipeline network anti-corrosion, steel pipe anti-corrosion, long-distance oil and gas pipeline interface anti-corrosion, urban gas pipeline interface anti-corrosion, heating steel pipe interface anti-corrosion, and water pipe interface anti-corrosion applications.
Heat shrinkable tapes are available in open and closed types based on construction environment. Supporting products include EVA adhesive strips, fixing sheets, repair sheets, and solvent-free epoxy primer.
| Steel Pipe Outside Diameter (mm) | PE Outside Casing Diameter (mm) | Width (mm) | Thickness (mm) |
|---|---|---|---|
| DN159 | 285 | 600 | 4 |
| DN219 | 315 | 600 | 4 |
| DN273 | 365 | 600 | 4 |
| DN325 | 420 | 600 | 5 |
| DN377 | 500 | 600 | 5 |
| DN426 | 550 | 600 | 6 |
| DN478 | 630 | 600 | 6 |
| DN529 | 655 | 600 | 6 |
| DN630 | 760 | 600 | 8 |
| DN720 | 850 | 600 | 8 |
| DN820 | 960 | 600 | 10 |
| DN920 | 1054 | 600 | 10 |
| DN1020 | 1155 | 600 | 12 |
| DN1220 | 1380 | 600 | 12 |
All testing conducted according to EN253-2003, ISO1183-2004, ISO6964-1986, and EN728-1997 standards.
Qingdao Huashida Machinery Co., LTD is a manufacturer with 21 years of production experience specializing in plastic pipe machines, municipal pipe machines, pipe insulation & anti-corrosion machines, and pipe jointing & anti-corrosion materials.
We serve over 400 overseas customers and export to Kazakhstan, Uzbekistan, Middle East, Russia, Nigeria, and other countries worldwide.
For further details, please feel free to contact us at any time. Our team will respond promptly and provide a fully customized solution tailored to your specific requirements and project needs.