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 DN15 PN320 Type 11/A EN 1092-1 | 90 | 48 | 21.3 | 26 | Type 11 - weld neck | 18 | Stainless steel | 15 | 0 | — | 4 | 4 | EN 1092-1 | X2CrNiMoN22-5-3 / 1.4462 | M16 | Type A - flat surface | 2.53 |
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| Stainless steel weld neck flange DN15 PN320 Type 11/A EN 1092-1 | 90 | 48 | 21.3 | 26 | Type 11 - weld neck | 18 | Stainless steel | 15 | 0 | — | 4 | 4 | EN 1092-1 | X2CrNiMo17-12-2 / 1.4404 | M16 | Type A - flat surface | 2.53 |
|
| Stainless steel weld neck flange DN15 PN320 Type 11/A EN 1092-1 | 90 | 48 | 21.3 | 26 | Type 11 - weld neck | 18 | Stainless steel | 15 | 0 | — | 4 | 4 | EN 1092-1 | X2CrNi18-9 / 1.4307 | M16 | Type A - flat surface | 2.53 |
|
| Stainless steel weld neck flange DN15 PN320 Type 11/A EN 1092-1 | 90 | 48 | 21.3 | 26 | Type 11 - weld neck | 18 | Stainless steel | 15 | 0 | — | 4 | 4 | EN 1092-1 | X1NiCrMoCuN25-20-7 / 1.4529 | M16 | Type A - flat surface | 2.53 |
|
| Stainless steel weld neck flange DN15 PN320 Type 11/A EN 1092-1 | 90 | 48 | 21.3 | 26 | Type 11 - weld neck | 18 | Stainless steel | 15 | 0 | — | 4 | 4 | EN 1092-1 | X1NiCrMoCu25-20-5 / 1.4539 | M16 | Type A - flat surface | 2.53 |
|
| Stainless steel weld neck flange DN15 PN320 Type 11/A EN 1092-1 | 90 | 48 | 21.3 | 26 | Type 11 - weld neck | 18 | Stainless steel | 15 | 0 | — | 4 | 4 | EN 1092-1 | X1CrNiMoCuN20-18-7 / 1.4547 | M16 | Type A - flat surface | 2.53 |
|
| Weld neck flange DN350 CL300 Type 11/E EN 1759-1 | 514.4 | 425 | 355.6 | 54 | Type 11 - weld neck | 31.8 | Black | 350 | 300 | — | 20 | 9.5 | EN 1759-1 | P355NH / 1.0565 | M30 | Type E - with a ledge | 89.1 |
|
| Weld neck flange DN350 CL300 Type 11/E EN 1759-1 | 514.4 | 425 | 355.6 | 54 | Type 11 - weld neck | 31.8 | Black | 350 | 300 | — | 20 | 9.5 | EN 1759-1 | 12Ni14 / 1.5637 | M30 | Type E - with a ledge | 89.1 |
|
| Weld neck flange DN350 CL300 Type 11/E EN 1759-1 | 514.4 | 425 | 355.6 | 54 | Type 11 - weld neck | 31.8 | Black | 350 | 300 | — | 20 | 9.5 | EN 1759-1 | 11CrMo9-10 / 1.7383 | M30 | Type E - with a ledge | 89.1 |
|
| Weld neck flange DN350 CL300 Type 11/E EN 1759-1 | 514.4 | 425 | 355.6 | 54 | Type 11 - weld neck | 31.8 | Black | 350 | 300 | — | 20 | 9.5 | EN 1759-1 | 13CrMo4-5 / 1.7335 | M30 | Type E - with a ledge | 89.1 |
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