This polyethylene sleeve is a specialized connecting pipe fitting designed for anti-corrosion applications, particularly for field joints on directly buried pre-insulated pipes. Manufactured from polyethylene sheets integrated with electro-fusion wire, it provides superior protection and durability.
This heat shrink anti-corrosion material is engineered for joint repair and protection of buried steel pipelines, as well as for sealing and anti-corrosion of pipeline flange connections. Composed of radiation cross-linked polyolefin substrate and specialized sealing hot melt adhesive, it forms a robust anti-corrosion 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 |
| Steel Pipe OD (mm) | PE Casing OD (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 |
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.
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We serve over 400 overseas customers worldwide, exporting to Kazakhstan, Uzbekistan, Middle East, Russia, Nigeria, and other countries.
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