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 DN500 CL900 Type 11/DS EN 1759-1 | 749.3 | 622 | 0 | 508 | 108 | Type 11 - weld neck | 54 | Black | 500 | 900 | — | 20 | 11 | EN 1759-1 | S235JR / 1.0038 | M52x4 | Type DS - with small groove | 373.75 |
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| Weld neck flange DN25 PN100 Type 11/Н EN 1092-1 | 100 | 52 | 58 | 33.7 | 24 | Type 11 - weld neck | 18 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | 11CrMo9-10 / 1.7383 | M16 | Type H - with gasket groove | 2.63 |
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| Weld neck flange DN25 PN100 Type 11/Н EN 1092-1 | 100 | 52 | 58 | 33.7 | 24 | Type 11 - weld neck | 18 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | 12Ni14 / 1.5637 | M16 | Type H - with gasket groove | 2.63 |
|
| Weld neck flange DN25 PN100 Type 11/Н EN 1092-1 | 100 | 52 | 58 | 33.7 | 24 | Type 11 - weld neck | 18 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | 13CrMo4-5 / 1.7335 | M16 | Type H - with gasket groove | 2.63 |
|
| Weld neck flange DN25 PN100 Type 11/Н EN 1092-1 | 100 | 52 | 58 | 33.7 | 24 | Type 11 - weld neck | 18 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | 16Mo3 / 1.5415 | M16 | Type H - with gasket groove | 2.63 |
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| Weld neck flange DN25 PN100 Type 11/Н EN 1092-1 | 100 | 52 | 58 | 33.7 | 24 | Type 11 - weld neck | 18 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | P235GH / 1.0345 | M16 | Type H - with gasket groove | 2.63 |
|
| Weld neck flange DN25 PN100 Type 11/Н EN 1092-1 | 100 | 52 | 58 | 33.7 | 24 | Type 11 - weld neck | 18 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | P245GH / 1.0352 | M16 | Type H - with gasket groove | 2.63 |
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| Weld neck flange DN25 PN100 Type 11/Н EN 1092-1 | 100 | 52 | 58 | 33.7 | 24 | Type 11 - weld neck | 18 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | P250GH / 1.0460 | M16 | Type H - with gasket groove | 2.63 |
|
| Weld neck flange DN25 PN100 Type 11/Н EN 1092-1 | 100 | 52 | 58 | 33.7 | 24 | Type 11 - weld neck | 18 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | P265GH / 1.0425 | M16 | Type H - with gasket groove | 2.63 |
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| Weld neck flange DN25 PN100 Type 11/Н EN 1092-1 | 100 | 52 | 58 | 33.7 | 24 | Type 11 - weld neck | 18 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | P355NH / 1.0565 | M16 | Type H - with gasket groove | 2.63 |
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