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Support span for PVC, Fiberglass and Steel pipes filled with cold water are indicated in the table below:
| Support Spacing (feet) | ||||
| NPS (inches) |
DN (mm) |
Standard Steel Pipe | Fiberglass Pipe | PVC Pipe Schedule 80 |
| 1 | 25 | 7 | 12 | 4.5 |
| 1 1/2 | 40 | 9 | 14 | 5 |
| 2 | 50 | 10 | 15 | 5 |
| 3 | 80 | 12 | 17 | 6 |
| 4 | 100 | 14 | 19 | 7.5 |
| 6 | 150 | 17 | 22 | 8.5 |
| 8 | 200 | 19 | 24 | 9 |
| 10 | 250 | 22 | 27 | 9.5 |
Support centers for ABS, PE and PVC pipes - schedule 40 and 80 - are indicated in the diagram below:

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