HDPE Pipes are one of the two largest thermoplastic pipelines available and by far the most versatile. Polyethylene is a wax like thermoplastic with a density varying from a range of 934 Kg/m3 to 960 Kg/m3 which is less than that of water. The only two additives that are added to polyethylene are Carbon black with a limit of 2-3% to add some reinforcing effect to increase its weathering properties and some Anti-Oxidant to a limit of 0.3%. HDPE having comparatively high molecular weight is high in abrasion resistance and impact strength. It is also very good in stress cracking resistance and has low creep rupture properties. It is excellent in insulation properties over a wide range of frequencies and good chemical properties.
HDPE Pipes – Transportation of Potable Water as per IS 4984:2016, ISO 4427-1:2007:
HDPE Pipes – Drainage & Sewerage Disposal as per IS 14333:1996:
Grade | Nominal OD (mm) | Nominal Pressure (PN) |
---|---|---|
PE 63 | 40 mm to 250 mm | PN 2- PN 10 |
PE 80 | 40 mm to 250 mm | PN 2- PN 10 |
PE 100 | 40 mm to 250 mm | PN 2- PN 10 |
SR No | PROPERTIES | VALUE |
1 | M.F.I. (190°C, 5kg load) | 0.20 to 1.1 gm/10 mins |
2 | Specified base density | 940 to 958 kg/mtr3 |
3 | Material Grade | PE-63, PE-80, PE-100 |
4 | Carbon Black | (2.5 ± 0.5%) |
5 | Antioxidant | <0.3% by mass |
6 | Tensile Strength (min) (27±2°C) | 19MPa |
7 | Elongation | (Testing speed = 100mm/min ± 10% ) >350% |
8 | Reversion | <=3% |
9 | Hydraulic Characteristics | No sign of localized swelling, leakage or weeping (at 80°C for 165 & 48 hrs.) |