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 CL2500 Type 11/CL EN 1759-1 | 88.9 | 43 | 21.3 | 30.2 | Type 11 - weld neck | 22.2 | Stainless steel | 15 | 2500 | — | 4 | 5 | EN 1759-1 | X5CrNi18-10 / 1.4301 | M20 | Type CL - with large tongue | 3.27 |
|
| Weld neck flange DN600 CL900 Type 11/B EN 1759-1 | 901.7 | 749 | 609.6 | 139.7 | Type 11 - weld neck | 66.7 | Black | 600 | 900 | — | 20 | 11 | EN 1759-1 | P235GH / 1.0345 | M64x4 | Type B - with connecting projection | 681.13 |
|
| Weld neck flange DN600 CL900 Type 11/B EN 1759-1 | 901.7 | 749 | 609.6 | 139.7 | Type 11 - weld neck | 66.7 | Black | 600 | 900 | — | 20 | 11 | EN 1759-1 | X10CrMoVNb9-1 / 1.4903 | M64x4 | Type B - with connecting projection | 681.13 |
|
| Weld neck flange DN600 CL900 Type 11/B EN 1759-1 | 901.7 | 749 | 609.6 | 139.7 | Type 11 - weld neck | 66.7 | Black | 600 | 900 | — | 20 | 11 | EN 1759-1 | P355NH / 1.0565 | M64x4 | Type B - with connecting projection | 681.13 |
|
| Weld neck flange DN600 CL900 Type 11/B EN 1759-1 | 901.7 | 749 | 609.6 | 139.7 | Type 11 - weld neck | 66.7 | Black | 600 | 900 | — | 20 | 11 | EN 1759-1 | 12Ni14 / 1.5637 | M64x4 | Type B - with connecting projection | 681.13 |
|
| Weld neck flange DN600 CL900 Type 11/B EN 1759-1 | 901.7 | 749 | 609.6 | 139.7 | Type 11 - weld neck | 66.7 | Black | 600 | 900 | — | 20 | 11 | EN 1759-1 | 11CrMo9-10 / 1.7383 | M64x4 | Type B - with connecting projection | 681.13 |
|
| Weld neck flange DN600 CL900 Type 11/B EN 1759-1 | 901.7 | 749 | 609.6 | 139.7 | Type 11 - weld neck | 66.7 | Black | 600 | 900 | — | 20 | 11 | EN 1759-1 | 13CrMo4-5 / 1.7335 | M64x4 | Type B - with connecting projection | 681.13 |
|
| Weld neck flange DN600 CL900 Type 11/B EN 1759-1 | 901.7 | 749 | 609.6 | 139.7 | Type 11 - weld neck | 66.7 | Black | 600 | 900 | — | 20 | 11 | EN 1759-1 | 16Mo3 / 1.5415 | M64x4 | Type B - with connecting projection | 681.13 |
|
| Weld neck flange DN600 CL900 Type 11/B EN 1759-1 | 901.7 | 749 | 609.6 | 139.7 | Type 11 - weld neck | 66.7 | Black | 600 | 900 | — | 20 | 11 | EN 1759-1 | P245GH / 1.0352 | M64x4 | Type B - with connecting projection | 681.13 |
|
| Weld neck flange DN600 CL900 Type 11/B EN 1759-1 | 901.7 | 749 | 609.6 | 139.7 | Type 11 - weld neck | 66.7 | Black | 600 | 900 | — | 20 | 11 | EN 1759-1 | S235JR / 1.0038 | M64x4 | Type B - with connecting projection | 681.13 |
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