- Centrifugal Ductile Iron Pipe
- ISO2531 Ductile Iron Pipe K9
- Cement Mortar Lining
- Ductile Iron Pipe Standard and Application
- T-Type Joint Ductile Iron Pipe
- PU Coating Ductile Iron Pipe
- Ductile Iron Pipe Shipped in Bulk Vessel
- Lifting of Ductile Iron Pipe
- EN598 Ductile Iron Pipe
- Polyethylene Sleeving for DI Pipe
- Restrained Joint Ductile Iron Pipe
- Ductile Iron Jacking Pipe
- EN545 Double Flanged Bend
- EN598 Double Socket Bend
- FBE Coating Double Flanged Bend
- ISO2531 Double Socket Bend
- All Flanged Tee
- EN598 Flange Spigot
- PU Lining Double Socket Bend
- Socket Spigot Reducing Tee with Flanged Branch
- Socket Spigot Reducing Tee with Socket Branch
- Double Flanged Pipe
- Puddle Flanged Pipe
- Cement Mortar Lining for Pipe Fittings
- Blind Flange
- Reducer Flange
Polyethylene Sleeving for DI Pipe
Polyethylene sleeving (PE film) for DI Pipe supplier, according to ISO8180; Advantages of Polyethylene sleeving: Anti-distortion, anti-static, electricity corrosion. It is cheaper than Polyurethane coating.
- Product Description
PE sleeving is the Polyethylene or a mixture of polyethylene and/or ethylene and olefin copolymers sleeve (film) with thickness of 0.2mm that is wrapped on external walls of the pipe on the construction site. It can prevent direct contact between cast iron pipes and the soil. Meanwhile, it also prevents underground moisture from corroding the pipelines. It is used to supplement the basic pipe coating (metalic Znic + HCPE finishing layer) in certain case of highly corrosive soils or in the presence of stray current.
Properties for PE Sleeve (film)
|Tested items||Test results||Test standard|
|material density/kg/m³||910~935||ISO 1183-1|
|impact resistance/g||≥900||ISO 7765-1 Method A|
|tensile strength/MPa||≥20||ISO 527-3 Type 2|
|elongation/%||≥500||ISO 527-3 Type 2|
|propagation and tear resistance/N||≥20||ISO 6383-2|
The anti-corrosion mechanisms for PE sleeve (film) wrapped outside zinc coating are as following: First of all, PE sleeve can separate the pipelines from corrosive soil and inhibit the generation of electrochemical cell. At the same time, it can also isolate stray current. The PE sleeve is a kind of anti-corrosion method whose performance is achieved through the changing of corrosive environment: it can change the corrosive environment from non-homogeneous soil with strong aggressivity into one that is homogeneous with weak aggressivity.
It is suggested to adopt this kind of protective layer for corrosive soil, for example: Soil with low resistivity (with indicator of high aggressivity); Regions with stray current; Regions with high chlorine or sulphur content or active bacteria indicated by the analysis.
Polyethylene sleeving and Polyurethane coating have similar characters and property, both used in corrosive soils to protect the ductile iron pipe, but the Polyurethane coating is much more expensive than Polyethylene sleeving, so normally speaking, outside protection, Polyethylene sleeving is the best choose.