HDPE DWC
Pipes & Fittings
Double wall corrugated high density polyethylene pipe has smooth inner wall and corrugated exterior. It is surrounded by ridge & furrows on its surface which fully encircles the pipe. It is fast replacing cast Iron, metal and concrete pipe in commercial drainage systems. It’s a versatile advance material and has ideal characteristics for use in underground structures.
Application
- Drainage system
- Gravity water transportation
- Irrigation system
- Sewer & residential connection
- Rainwater
- Industrial application
- Treatment plants
Characteristics & Advantage
- High strength due to rib
- Corrosion resistance
- Full Sealing
- Wear resistance to organic composition
- Design life of 50 years & more
- Withstand heavy loads
- Lightweight & easy to transport and install saving time.
- No need for special equipment for laying
- Easy bonding method they are conjugating the net to muffle the gasket sealing sleeve.
- Interior surface can be produced in different colour with blue & orange being most common.
- Flexible to move even against earthquakes
- Friction losses are minimum and do not corrode against chemical raw material.
- Raw material used conforms to ASTM 3350
- Coefficient of roughness defined by manning “n” value is 0.012.
Test performed on HDPE Corrugated pipes
| Test Name | Test Method | Unit | Test Result |
|---|---|---|---|
| Density Test | EN ISO 1183 | Kg/m3 | ≥ 930 |
| Mass Melt Flow Rate Test | EN ISO 1133 | Gr./10 dak | ≤ 1,6 |
| Length Change Test | EN 743 (METOD B) | % | < 3,0 |
| Thermal Testing | ISO 12091 | - | Suitable |
| Ring Flexibility | EN 1446 | - | Resistant |
| Circle Stiffness | EN ISO 9969 | kN/m2 | ≥SN value |
| Impact Strength | EN 744 | - | Resistant |
| Leakage Test (0,5 bar 15 dak.) | EN 1053 | - | Tight |
| Thermal Stability (OIT) (200o C) | EN 728 | Min. | ≥20 |
Specification
| Type | Corrugated Smooth internal High Density Polyethylene Pipe HDPE |
|---|---|
| Interior | Manning value – 0.012 |
| Diameters | 4-60 inch (100-1500 mm) |
| Length | 13, 20 feet (4,6 mtrs) |
| Joining | Plain end – External coupler S.T – Integrated Bell & Gasket Spigot W.T – Reinforced Internal Bell & Gasket Spigot ASTMD3212 – W.T |
| Fittings | Cross tee, Double bell coupler, Elbows, End Cap, Flared Ends, Manifolds, Outside external coupler, Reducers, Tee’s wyes etc. |
| Design Service Life | 50 years and above. |
Joints
| Plain | Soil Tight | Water Tight |
|---|---|---|
| AASTO M252 (10 inch) 100-250 mm | AASTO M252 (10 inch) 100-250 mm | AASTO M252 (10 inch) 100-250 mm |
| AASTO M294 (12-60 inch 300-1500 mm | AASTO M294 (12-60 inch 300-1500 mm | AASTO M294 (12-60 inch 300-1500 mm |
| ASTMF2306 (12-60 inch) 300-1500 mm | ASTMF2306 (12-60 inch) 300-1500 mm | ASTMF2306 (12-60 inch) 300-1500 mm |
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