| Pn4 | Pn8 |
| Outer Dimension | Wall Thickness | Outer Dimension | Wall Thickness |
| Min | max | Min | max | Min | max | Min | max |
|---|---|---|---|---|---|---|---|
| 16 | 16.3 | 1.4 | 1.5 | 16 | 16.3 | 1.6 | 1.7 |
| 20 | 20.3 | 1.6 | 1.8 | 20 | 20.3 | 2.0 | 2.2 |
| 25 | 25.3 | 2.0 | 2.2 | 25 | 25.3 | 2.3 | 2.5 |
| 32 | 32.3 | 2.3 | 2.5 | 32 | 32.3 | 3.0 | 3.2 |
| Outer Dimension | Wall Thickness |
| Min | max | Min | max |
|---|---|---|---|
| 16 | 16.3 | 1.4 | 1.5 |
| 20 | 20.3 | 1.6 | 1.8 |
| 25 | 25.3 | 2.0 | 2.2 |
| 32 | 32.3 | 2.3 | 2.5 |