(Compliant with GB/T19228.1-2011)
Equal Straight Coupling (EN Standard)
| Nominal Diameter (DN, mm) | GB Series II Outer Diameter (mm) |
|---|---|
| DN15 | 18.00 |
| DN20 | 22.00 |
| DN25 | 28.00 |
| DN32 | 35.00 |
| DN40 | 42.00 |
| DN50 | 54.00 |
(Compliant with GB/T19228.1-2011)
Equal Straight Coupling (EN Standard)
| Nominal Diameter (DN, mm) | GB Series II Outer Diameter (mm) |
|---|---|
| DN15 | 18.00 |
| DN20 | 22.00 |
| DN25 | 28.00 |
| DN32 | 35.00 |
| DN40 | 42.00 |
| DN50 | 54.00 |