| Nominal Tubo Tamaño(NPS) | DN | Exterior Diámetro | longitud, E (mm) |
Limitación del espesor de la pared para longitud , E |
longitud, E1 (mm) |
| 1/2 | 15 | 21.3 | 25 | 4.57 | 25 |
| 3/4 | 20 | 26.7 | 25 | 3.81 | 25 |
| 1 | 25 | 33.4 | 38 | 4.57 | 38 |
| 1 1/4 | 32 | 42.2 | 38 | 4.83 | 38 |
| 1 1/2 | 40 | 48.3 | 38 | 5.08 | 38 |
| 2 | 50 | 60.3 | 38 | 5.59 | 44 |
| 2 1/2 | 65 | 73 | 38 | 7.11 | 51 |
| 3 | 80 | 88.9 | 51 | 7.62 | 64 |
| 3 1/2 | 90 | 101.6 | 64 | 8.13 | 76 |
| 4 | 100 | 114.3 | 64 | 8.64 | 76 |
| 5 | 125 | 141.3 | 76 | 9.65 | 89 |
| 6 | 150 | 168.3 | 89 | 10.92 | 102 |
| 8 | 200 | 219.1 | 102 | 12.7 | 127 |
| 10 | 250 | 273 | 127 | 12.7 | 152 |
| 12 | 300 | 323.8 | 152 | 12.7 | 178 |
| 14 | 350 | 355.6 | 165 | 12.7 | 191 |
| 16 | 400 | 406.4 | 178 | 12.7 | 203 |
| 18 | 450 | 457 | 203 | 12.7 | 229 |
| 20 | 500 | 508 | 229 | 12.7 | 254 |
| 22 | 550 | 559 | 254 | 12.7 | 254 |
| 24 | 600 | 610 | 267 | 12.7 | 305 |
| 26 | 650 | 660 | 267 | . . . | . . . |
| 28 | 700 | 711 | 267 | . . . | . . . |
| 30 | 750 | 762 | 267 | . . . | . . . |
| 32 | 800 | 813 | 267 | . . . | . . . |
| 34 | 850 | 864 | 267 | ||
| 36 | 900 | 914 | 267 | . . . | . . . |
| 38 | 950 | 965 | 305 | . . . | . . . |
| 40 | 1000 | 1016 | 305 | . . . | . . . |
| 42 | 1050 | 1067 | 305 | . . . | . . . |
| 44 | 1100 | 1118 | 343 | . . . | . . . |
| 46 | 1150 | 1168 | 343 | ||
| 48 | 1200 | 1219 | 343 | . . . | . . . |
