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 PN16 Type 11/Н EN 1092-1 | 75 | 40 | 40 | 26.9 | 18 | Type 11 - weld neck | 14 | Black | 20 | 0 | — | 4 | 4 | EN 1092-1 | P265GH / 1.0425 | M12 | Type H - with gasket groove | 1.09 |
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| Weld neck flange DN20 PN16 Type 11/Н EN 1092-1 | 75 | 40 | 40 | 26.9 | 18 | Type 11 - weld neck | 14 | Black | 20 | 0 | — | 4 | 4 | EN 1092-1 | P355NH / 1.0565 | M12 | Type H - with gasket groove | 1.09 |
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| Weld neck flange DN20 PN16 Type 11/Н EN 1092-1 | 75 | 40 | 40 | 26.9 | 18 | Type 11 - weld neck | 14 | Black | 20 | 0 | — | 4 | 4 | EN 1092-1 | S235JR / 1.0038 | M12 | Type H - with gasket groove | 1.09 |
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| Weld neck flange DN20 PN16 Type 11/Н EN 1092-1 | 75 | 40 | 40 | 26.9 | 18 | Type 11 - weld neck | 14 | Black | 20 | 0 | — | 4 | 4 | EN 1092-1 | S355J2 / 1.0577 | M12 | Type H - with gasket groove | 1.09 |
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| Weld neck flange DN20 PN16 Type 11/Н EN 1092-1 | 75 | 40 | 40 | 26.9 | 18 | Type 11 - weld neck | 14 | Black | 20 | 0 | — | 4 | 4 | EN 1092-1 | X10CrMoVNb9-1 / 1.4903 | M12 | Type H - with gasket groove | 1.09 |
|
| Weld neck flange DN20 PN16 Type 11/Н EN 1092-1 | 75 | 40 | 40 | 26.9 | 18 | Type 11 - weld neck | 14 | Black | 20 | 0 | — | 4 | 4 | EN 1092-1 | P355QH1 / 1.0571 | M12 | Type H - with gasket groove | 1.09 |
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| Stainless steel weld neck flange DN50 CL600 Type 11/CL EN 1759-1 | 127 | 84 | 0 | 60.3 | 25.4 | Type 11 - weld neck | 19 | Stainless steel | 50 | 600 | — | 8 | 3 | EN 1759-1 | X2CrNiMoN17-11-2 / 1.4401 | M16 | Type CL - with large tongue | 4.55 |
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| Stainless steel weld neck flange DN50 CL600 Type 11/CL EN 1759-1 | 127 | 84 | 0 | 60.3 | 25.4 | Type 11 - weld neck | 19 | Stainless steel | 50 | 600 | — | 8 | 3 | EN 1759-1 | X6CrNiMoTi17-12-2 / 1.4571 | M16 | Type CL - with large tongue | 4.55 |
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| Stainless steel weld neck flange DN50 CL600 Type 11/CL EN 1759-1 | 127 | 84 | 0 | 60.3 | 25.4 | Type 11 - weld neck | 19 | Stainless steel | 50 | 600 | — | 8 | 3 | EN 1759-1 | X2CrNiMo17-12-2 / 1.4404 | M16 | Type CL - with large tongue | 4.55 |
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| Stainless steel weld neck flange DN50 CL600 Type 11/CL EN 1759-1 | 127 | 84 | 0 | 60.3 | 25.4 | Type 11 - weld neck | 19 | Stainless steel | 50 | 600 | — | 8 | 3 | EN 1759-1 | X6CrNiTi18-10 / 1.4541 | M16 | Type CL - with large tongue | 4.55 |
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