| DN | Di, мм | Si, см2 | (Si ПВХ – Si ПЭ)/Si ПЭ | ||
| ПВХ | ПЭ | ПВХ | ПЭ | ||
| 110 | 103.6 | 92,5 | 84 | 67 | 25% |
| 160 | 152 | 138 | 181 | 150 | 21% |
| 200 | 190.2 | 176 | 284 | 243 | 17% |
| 250 | 237.6 | 216 | 443 | 366 | 21% |
| 315 | 299.6 | 271 | 704 | 576 | 22% |
| 400 | 380.4 | 343 | 1 136 | 923 | 23% |
| 500 | 475.4 | 427 | 1 774 | 1 431 | 24% |




| DN | Di, мм | Si, см2 | (Si ПВХ – Si ПЭ)/Si ПЭ | ||
| ПВХ | ПЭ | ПВХ | ПЭ | ||
| 110 | 103.6 | 92,5 | 84 | 67 | 25% |
| 160 | 152 | 138 | 181 | 150 | 21% |
| 200 | 190.2 | 176 | 284 | 243 | 17% |
| 250 | 237.6 | 216 | 443 | 366 | 21% |
| 315 | 299.6 | 271 | 704 | 576 | 22% |
| 400 | 380.4 | 343 | 1 136 | 923 | 23% |
| 500 | 475.4 | 427 | 1 774 | 1 431 | 24% |