Weld neck flanges
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| Name | Center distance of mounting holes, K (mm) | Collar diameter at base, N (mm) | Collar height, H2 (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) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weld neck flange DN20 CL900 Type 11/DL EN 1759-1 | 88.9 | 44 | 0 | 26.7 | 25.4 | Type 11 - weld neck | 22.2 | Black | 20 | 900 | — | 4 | 5 | EN 1759-1 | P355NH / 1.0565 | M20 | Type DL - with large groove | 2.59 |
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| Weld neck flange DN20 CL900 Type 11/DL EN 1759-1 | 88.9 | 44 | 0 | 26.7 | 25.4 | Type 11 - weld neck | 22.2 | Black | 20 | 900 | — | 4 | 5 | EN 1759-1 | 12Ni14 / 1.5637 | M20 | Type DL - with large groove | 2.59 |
|
| Weld neck flange DN20 CL900 Type 11/DL EN 1759-1 | 88.9 | 44 | 0 | 26.7 | 25.4 | Type 11 - weld neck | 22.2 | Black | 20 | 900 | — | 4 | 5 | EN 1759-1 | 11CrMo9-10 / 1.7383 | M20 | Type DL - with large groove | 2.59 |
|
| Weld neck flange DN20 CL900 Type 11/DL EN 1759-1 | 88.9 | 44 | 0 | 26.7 | 25.4 | Type 11 - weld neck | 22.2 | Black | 20 | 900 | — | 4 | 5 | EN 1759-1 | 13CrMo4-5 / 1.7335 | M20 | Type DL - with large groove | 2.59 |
|
| Weld neck flange DN20 CL900 Type 11/DL EN 1759-1 | 88.9 | 44 | 0 | 26.7 | 25.4 | Type 11 - weld neck | 22.2 | Black | 20 | 900 | — | 4 | 5 | EN 1759-1 | 16Mo3 / 1.5415 | M20 | Type DL - with large groove | 2.59 |
|
| Weld neck flange DN20 CL900 Type 11/DL EN 1759-1 | 88.9 | 44 | 0 | 26.7 | 25.4 | Type 11 - weld neck | 22.2 | Black | 20 | 900 | — | 4 | 5 | EN 1759-1 | P245GH / 1.0352 | M20 | Type DL - with large groove | 2.59 |
|
| Weld neck flange DN20 CL900 Type 11/DL EN 1759-1 | 88.9 | 44 | 0 | 26.7 | 25.4 | Type 11 - weld neck | 22.2 | Black | 20 | 900 | — | 4 | 5 | EN 1759-1 | S235JR / 1.0038 | M20 | Type DL - with large groove | 2.59 |
|
| Stainless steel weld neck flange DN65 PN320 Type 11/E EN 1092-1 | 200 | 138 | 120 | 88.9 | 51 | Type 11 - weld neck | 30 | Stainless steel | 65 | 0 | — | 8 | 6 | EN 1092-1 | X6CrNiTiB18-10 / 1.4941 | M27 | Type E - with a large protrusion | 19.5 |
|
| Stainless steel weld neck flange DN65 PN320 Type 11/E EN 1092-1 | 200 | 138 | 120 | 88.9 | 51 | Type 11 - weld neck | 30 | Stainless steel | 65 | 0 | — | 8 | 6 | EN 1092-1 | X6CrNiTi18-10 / 1.4541 | M27 | Type E - with a large protrusion | 19.5 |
|
| Stainless steel weld neck flange DN65 PN320 Type 11/E EN 1092-1 | 200 | 138 | 120 | 88.9 | 51 | Type 11 - weld neck | 30 | Stainless steel | 65 | 0 | — | 8 | 6 | EN 1092-1 | X6CrNiNb18-10 / 1.4550 | M27 | Type E - with a large protrusion | 19.5 |
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