EN 1092-1 Type 11 · PN 25
EN 1092-1 welding neck flange (EN 1092-1/11) used on the flanged connections of pipelines in PN 25. Supplied in carbon steel, stainless and alloy grades, from stock or project-specific.
DIN karşılığı: DIN 2634. Eski DIN normuyla arayan müşteriler için aynı ölçü tablosu geçerlidir.
| Product type | Welding Neck Flange (EN 1092-1/11) |
|---|---|
| Standard | EN 1092-1 Type 11 |
| Pressure class | PN 25 |
| Size range | DN10 – DN2000 |
| Material | ASTM A105, A350 LF2, A182 F304/F304L, F316/F316L, F11, F22 |
| Facing | RF / FF / RTJ |
| Certification | EN 10204 3.1 / 3.2 |
Selection and ordering notes
The EN 1092-1 type 11 weld neck flange is the metric counterpart of the ASME weld neck design. The hub provides a smooth stress transition and the type is used safely in higher PN classes.
EN flanges have a different bolt circle from ASME types, so the mating flange must share the same standard. PN 25 is used on medium pressure process and steam lines, where gasket and stud choice must follow temperature. See flange types guide for the details.
