Weld neck flanges
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| Name | Center distance of mounting holes, K (mm) | Collar diameter at base, N (mm) | Diameter of the collar for welding, A (mm) | Flange thickness, C2 (mm) | Flange type | Hole diameter, L (mm) | Material | Nominal diameter, DN | Nominal pressure, Class | Nominal size, NPS (inch) | Number of holes, n | Radius of curvature, R1 (mm) | Standard | Steel grade | Thread | Type of connecting surface | Weight 1 pc (kg) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stainless steel weld neck flange DN200 PN160 Type 11/A EN 1092-1 | 360 | 278 | 219.1 | 60 | Type 11 - weld neck | 36 | Stainless steel | 200 | 0 | — | 12 | 10 | EN 1092-1 | X1CrNiMoCuN20-18-7 / 1.4547 | M33 | Type A - flat surface | 60.7 |
|
| Weld neck flange DN250 CL900 Type 11/F EN 1759-1 | 469.9 | 368 | 273 | 69.8 | Type 11 - weld neck | 38.1 | Black | 250 | 900 | — | 16 | 6.5 | EN 1759-1 | P355NH / 1.0565 | M36 | Type F - with recess | 122.85 |
|
| Weld neck flange DN250 CL900 Type 11/F EN 1759-1 | 469.9 | 368 | 273 | 69.8 | Type 11 - weld neck | 38.1 | Black | 250 | 900 | — | 16 | 6.5 | EN 1759-1 | 12Ni14 / 1.5637 | M36 | Type F - with recess | 122.85 |
|
| Weld neck flange DN250 CL900 Type 11/F EN 1759-1 | 469.9 | 368 | 273 | 69.8 | Type 11 - weld neck | 38.1 | Black | 250 | 900 | — | 16 | 6.5 | EN 1759-1 | 11CrMo9-10 / 1.7383 | M36 | Type F - with recess | 122.85 |
|
| Weld neck flange DN250 CL900 Type 11/F EN 1759-1 | 469.9 | 368 | 273 | 69.8 | Type 11 - weld neck | 38.1 | Black | 250 | 900 | — | 16 | 6.5 | EN 1759-1 | 13CrMo4-5 / 1.7335 | M36 | Type F - with recess | 122.85 |
|
| Weld neck flange DN250 CL900 Type 11/F EN 1759-1 | 469.9 | 368 | 273 | 69.8 | Type 11 - weld neck | 38.1 | Black | 250 | 900 | — | 16 | 6.5 | EN 1759-1 | 16Mo3 / 1.5415 | M36 | Type F - with recess | 122.85 |
|
| Weld neck flange DN250 CL900 Type 11/F EN 1759-1 | 469.9 | 368 | 273 | 69.8 | Type 11 - weld neck | 38.1 | Black | 250 | 900 | — | 16 | 6.5 | EN 1759-1 | P245GH / 1.0352 | M36 | Type F - with recess | 122.85 |
|
| Weld neck flange DN250 CL900 Type 11/F EN 1759-1 | 469.9 | 368 | 273 | 69.8 | Type 11 - weld neck | 38.1 | Black | 250 | 900 | — | 16 | 6.5 | EN 1759-1 | S235JR / 1.0038 | M36 | Type F - with recess | 122.85 |
|
| Stainless steel weld neck flange DN300 CL600 Type 11/CL EN 1759-1 | 489 | 400 | 323.9 | 66.7 | Type 11 - weld neck | 34.9 | Stainless steel | 300 | 600 | — | 20 | 11 | EN 1759-1 | X2CrNiMoN17-11-2 / 1.4401 | M33 | Type CL - with large tongue | 108.38 |
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| Stainless steel weld neck flange DN300 CL600 Type 11/CL EN 1759-1 | 489 | 400 | 323.9 | 66.7 | Type 11 - weld neck | 34.9 | Stainless steel | 300 | 600 | — | 20 | 11 | EN 1759-1 | X6CrNiMoTi17-12-2 / 1.4571 | M33 | Type CL - with large tongue | 108.38 |
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