These are manufactured using ultra-violet (UV) stabilized grade of HDPE with required Antioxidant content is another recommended additive. The inner layer of ducts is duly silicon coated which minimize the friction b/w OFC and the duct during the process of blowing the cable into the ducts, thus providing smooth installation of OFC in the duct without damaging the cable fibers.
Standard:-
| Sl.No. | DUCT Size OD/ID(mm) | Ovality | Wall Thickness | Standard Length(mtrs) |
|---|---|---|---|---|
| 1. | 32 / 26 | 1 : 3 | 3 | 500 / 1000 |
| 2. | 40 / 33 | 1 : 4 | 3.5 | 500 / 1000 |
| 3. | 50 / 42 | 1 : 4 | 4 | 500 / 1000 |
| 4. | 63 / 57 | 1 : 5 | 3.6 | 6 / 12 / 50 / 100 |
| 5. | 75 / 65 | 1 : 6 | 4.3 | 6 / 12 / 50 / 100 |
| 6. | 90 / 79 | 1 : 8 | 5.1 | 6 / 12 / 50 / 100 |
| 7. | 110 / 96 | 2 : 2 | 6.3 | 6 / 12 / 50 / 100 |